Yuh-Shyan Chen

Yuh-Shyan Chen
National Taipei University · Department of Computer Science and Information Engineering

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100
Publications
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Publications

Publications (100)
Article
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Detecting the frequency of the pest occurrence is always a time consuming and laborious task for agriculture. This paper attempts to solve the problem through the combination of deep learning and pest detection. We propose an entire-and-partial feature transfer learning architecture to perform pest detection, classification and counting tasks which...
Article
The Cloud Radio Access Network (C-RAN) is regarded as the possible implementation approach of the next-generation mobile networks. C-RAN splits a traditional base station into remote radio heads (RRHs) and the base band unit (BBU). Many BBUs are co-located into a centralized BBU pool. This enables the baseband resources to be managed in a centraliz...
Article
Full-text available
A solar-based vehicular ad-hoc networking technique is a key issue to exploit the on-board sensing, computing, energy harvesting, and wireless communication capabilities in the intelligent transportation system. Most existing research results mostly paid attention to the energy savings, but lacking in consideration of the energy harvesting. An elec...
Conference Paper
Full-text available
Energy saving is always an important issue. Most of the researches pay attention to save the energy but lacking in harvest energy especially the solar energy. The solar panel is an efficient way to harvest more energy. In this works, a solar vehicle equips the solar panel that can charge the battery via the sunlight. The ECR (energy consumption rat...
Article
Most of the licensed and license-exempt bands are underused while usage in some unlicensed bands is increasing. This trend has driven unlicensed users, equipped with cognitive radios, to opportunistically and dynamically access the spectrum not used by licensed users. Relaying techniques are an important issue for coverage and capacity extension. I...
Conference Paper
The goal of the network mobility (NEMO) management is to effectively reduce the complexity of handoff procedure and keep the mobile devices connected to the Internet. Vehicle is moving so fast that it may cause the handoff and packet loss problems. Both of the problems will lower down the throughput of the network. To overcome these problems, we pr...
Article
Full-text available
The LTE (Long Term Evolution) technologies defined by 3GPP is the last step toward the 4th generation (4G) of radio technologies designed to increase the capacity and speed of mobile telephone networks. Mobility management for supporting seamless handover is the key issue for the next generation wireless communication networks. The evolved packet c...
Article
Summary The requirement for in-vehicle passengers to access Internet multimedia services has risen recently. As a consequence, Vehicle Ad hoc NETwork (VANET) has gained much attention, and is regarded as a promising solution for providing in-vehicle Internet service through inter-vehicle and infrastructure communication. A new developed wireless ne...
Article
The next generation wireless communication system will likely be heterogeneous networks, as various technologies can be integrated on heterogeneous networks. A mobile multiple-mode device can easily access the Internet through different wireless interfaces. The mobile multiple-mode device thus could switch to different access points to maintain the...
Article
Full-text available
In this paper, we present a diagonal-intersection-based routing (DIR) protocol for vehicular ad hoc networks. The DIR protocol constructs a series of diagonal intersections between the source and destination vehicles. The DIR protocol is a geographic routing protocol. Based on the geographic routing protocol, source vehicle geographically forwards...
Article
Summary The design of the seamless handoff is the key issue in the next-generation mobile networks. A new broadband wireless access, called WiMAX, has been specified in the IEEE 802.16e standard document, to provide the high bandwidth and the large coverage area than the IEEE 802.11-based wireless networks. In the IP-based mobile network, mobile IP...
Conference Paper
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In this paper, we investigate a mobicast, also called a mobile geocast, problem in three-dimensional (3-D) underwater sensor networks (USNs), which aims to overcome the hole problem and minimizes the energy consumption of the sensor nodes while maximizing the data collection. In this paper, all underwater sensor nodes are randomly distributed in a...
Article
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Vehicular Ad hoc Network (VANET), a subclass of mobile ad hoc networks (MANETs), is a promising approach for the intelligent transportation system (ITS). The design of routing protocols in VANETs is important and necessary issue for support the smart ITS. The key difference of VANET and MANET is the special mobility partem and rapidly changeable to...
Conference Paper
Full-text available
Routing protocols for vehicular ad hoc networks (VANETs) have attracted a lot of attention recently. Most of the researches emphasize on minimizing the end-to-end delay without paying attention to reducing the usage of radio. This paper focuses on delay-bounded routing, whose goal is to deliver messages to the destination within user-defined delay...
Article
In vehicular networks, safety and comfort applica-tions are two quite different kinds of applications to avoid the emergency traffic accident and enjoy the non-emergency enter-tainment. The comfort application drives the challenges of new non-emergency entertainments for vehicular ad-hoc networks (VANETs). The comfort application usually keeps the...
Article
Full-text available
The LTE (Long Term Evolution) technologies de- fined by 3GPP is the last step toward the th generation (4G) of radio technologies designed to increase the capacity and speed of mobile telephone networks. Mobility management for supporting seamless handover is the key issue for the next generation wireless communication networks. The evolved packet...
Article
Full-text available
The large-scale mobile Underwater Wireless Sensor Network (UWSN) is a useful networking paradigm to explore underwater environments. The characteristics of mobile UWSNs, such as low communication bandwidth, large propagation delay, and floating node mobility are significantly different from wireless sensor networks. In this paper, we propose a new...
Article
Full-text available
In this paper, we present a "spatiotemporal multicast", called a "mobicast", protocol for supporting applications which require spatiotemporal coordination in vehicular ad hoc networks (VANETs). The spatiotemporal character of a mobicast is to forward a mobicast message to vehicles located in some geographic zone at time t, where the geographic zon...
Conference Paper
Full-text available
This study presents a cross-layer fast handover scheme for VANET, called vehicular fast handover scheme (VFHS), where the physical layer information is shared with the MAC layer, to reduce the handover delay. The key idea of VFHS is to utilize oncoming side vehicles (OSVs) to collect physical and MAC layers information of passing through RVs and br...
Article
Full-text available
In this paper, we propose a new mobicast routing protocol, called the HVE-mobicast (hierarchical-variant-egg-based mobicast) routing protocol, in wireless sensor networks (WSNs). Existing protocols for a spatiotemporal variant of the multicast protocol called a “mobicast” were designed to support a forwarding zone that moves at a constant velocity,...
Article
In this paper, we propose an overlapping communication protocol using improved time-slot leasing in the Bluetooth WPANS. One or many slave–master–slave communications usually exist in a piconet of the Bluetooth network. A fatal communication bottleneck is incurred in the master node if many slave–master–slave communications are required at the same...
Conference Paper
In this paper, we propose an overlapping communication pro- tocol using improved time-slot leasing in the Bluetooth WPANS. One or many,slave-master-slave communications,usually exist in a piconet of the Bluetooth network. A fatal communication,bottleneck is incurred in the master node if many slave-master-slave communications are required at the sa...
Article
Full-text available
In this paper, we present a new "spatiotemporal multicast", called a "mobicast", protocol for supporting applications which require spatiotemporal coordination in sensornets. The spa- tiotemporal character of a mobicast is to forward a mobicast message to all sensor nodes that will be present at time t in some geographic zone (called the forwarding...
Conference Paper
In this paper, a new approach is proposed to reduce handoff operation in IEEE 802.16e network. Traditional mobile approaches, such as mobile IPv6 (MIPv6) and hierarchical MIPv6 (HMIPv6), can support smoothly handoff. These approach, ,unfortunately, suffer large handoff delay and packet lost in macro mobility for mobile users. With the aid of the pa...
Article
Full-text available
The IEEE 802.11 standard has enabled low-cost and effective wireless local area network (WLAN) services. It is widely believed that WLANs will become a major portion of the fourth-generation cellular system. The seamless handoff problem in WLANs is a very important design issue to support the new astounding and amazing applications in WLANs, partic...
Article
Full-text available
The problem for dynamic IP address assignment is manifest in mobile ad hoc networks, especially in 4G all-IP-based heterogeneous networks. Existing solutions are mainly riveted to decentralized algorithms, applying a large number of broadcast messages to (1) maintain available IP address pools and (2) ensure no address duplication occurring. In thi...
Conference Paper
Full-text available
This paper proposes a new QoS routing protocol for mobile ad hoc network (MANET) using directional antenna. The scheme offers a bandwidth-based routing protocol for QoS support in MANET using the concept of multi-path. Our MAC sub-layer adopts the CDMA-over-TDM A channel model. The QoS on-demand routing protocol determines the end-to-end bandwidth...
Article
Full-text available
The mobile multimedia applications have recently generated much interest in wireless ad hoc networks with supporting the quality-of-service (QoS) communications. The QoS metric considered in this work is the reserved bandwidth, i.e., the time slot reservation. We approach this problem by assuming a common channel shared by all hosts under a TDMA (T...
Conference Paper
Full-text available
This paper investigates a new TDMA-based MAC, called C-MAC (MAC using Chinese remainder theorem), protocol with low power consumption while maintaining low packet latency for large-scale cluster-based WSNs. To offer low power consumption, each node and coordinator to be active and sleep states based on the time-slot schedule of Chinese remainder th...
Article
Full-text available
This paper investigates a new TDMA-based MAC, called C-MAC (MAC using Chinese remainder theorem), protocol with low power consumption while maintaining low packet latency for largescale cluster-based WSNs. To offer low power consumption, each node and coordinator to be active and sleep states based on the time-slot schedule of Chinese remainder the...
Article
Full-text available
In this paper, we investigate a new efficient QoS routing protocol based on the time-slot leasing mechanism over Bluetooth WPANs. The "transmission holding" problem is incurred because the master node is the communication bottleneck for each slave-master-slave communication in Bluetooth. To alleviate this problem, a time-slot leasing scheme is adap...
Conference Paper
Full-text available
In this paper, a new cross-layer protocol was developed, called as SmSCTP protocol, for session mobility over WLAN and 3G UMTS heterogeneous networks. Two key issues investigated in this work are the connection broken problem and fleeting-location-collapse problem. The connection broken problem indicates that a connection is broken when a mobile de...
Conference Paper
Full-text available
WLANs will become a major portion of the fourth generation (4G) cellular system. The seamless handoff problem in WLANs is a very important design issue to support the new astounding amazing applications in wireless networks. The entire delay time of a handoff is divided into probe, authentication, and reassociation delay times. Because the probe de...
Article
Full-text available
The quality-of-service (QoS) communication that supports mobile applications to guarantee bandwidth utilization is an important issue for Bluetooth wireless personal area networks (WPANs). In this paper, we address the problem of on-demand QoS routing with interpiconet scheduling in Bluetooth WPANs. A credit-based QoS (CQ) routing protocol is devel...
Article
In this paper, we designed and implemented an integrated wireless system, namely a SIP-based MIP6-MANET system. This SIP-based MIP6-MANET system is an integration and implementation of Mobile IPv6 and SIP-based mobile ad hoc networks (MANETs). To support mobile multimedia services, this work is the first result to combine session initiation protoco...
Chapter
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In this paper, we present a reconfiguration approach to identify the maximal fault-free subcube-ring for tolerating faults in faulty hypercubes. The fault-free subcube-ring is connected by a ring of fault-free subcubes with dilation 3. By exploiting the size of fault-free subcubes as large as possible, the maximal fault-free subcube-ring with highe...
Article
Full-text available
Orthogonal variable spreading factor (OVSF) channelization codes are widely used to provide variable data rates for supporting different bandwidth requirements in wideband code division multiple access (WCDMA) systems. Many novel works in the literature have intensively investigated code placement and replacement schemes in OVSF code trees to reduc...
Conference Paper
Full-text available
The problem for dynamic IP address assignment is manifest in mobile ad hoc networks (MANETs), especially in 4G all-IP-based heterogeneous networks. In this paper, we propose a ring-based address autoconfiguration protocol to configure node addresses. This work aims at the decentralized ring-based address autoconfiguration (DRAA) protocol, which has...
Article
Full-text available
The Internet protocol version 6 (IPv6)-enabled network architecture has recently attracted much attention. In this paper, we address the issue of connecting mobile ad hoc networks (MANETs) to global IPv6 networks, while supporting IPv6 mobility. Specifically, we propose a self-organizing, self-addressing, self-routing IPv6-enabled MANET infrastruct...
Article
Full-text available
Wireless ad hoc networks have received significant attention in recent years due to their potential applications on the battlefield, in disaster relief operations, festival field grounds, and historic sites. A wireless ad hoc network consists of mobile hosts dynamically forming a temporary network without the use of an existing network infrastructu...
Conference Paper
Full-text available
The quality-of-service (QoS) communication that supports mobile applications to guarantee bandwidth utilization is an important issue for Bluetooth wireless personal area networks (WPANs). In this paper, we address the problem of on-demand QoS routing with interpiconet scheduling in Bluetooth WPANs. A credit-based QoS (CQ) routing protocol is devel...
Conference Paper
Full-text available
This work proposes concepts, designs, experiences and lessons learned from some studies of ad hoc learning supported by wireless and mobile technologies. The ad hoc learning activity model supports learners communicating with or obtaining help from classmates or teacher, interacting with environment, and accessing teaching material from mobile devi...
Article
Full-text available
In this paper, a new channelization code tree structure, namely an ROVSF (rotated-orthogonal variable spreading factor) code tree, is defined and investigated. Most existing code assignment schemes are investigated on the OVSF (orthogonal variable spreading factor) code tree in WCDMA systems. The main work of this investigation is to exploit and ju...
Article
Full-text available
ABSTRACT Inthis paper, we describe the development of a mobile butterfly-watching learning (BWL) system to realize outdoor independent learning for mobile learners. The mobile butterfly-watching learning system was designed in a wireless mobile ad-hoc learning environment. This is first result toprovide,a cognitive ,tool with supporting the indepen...
Conference Paper
Full-text available
In this paper, we present a new "spatiotemporal multicast" protocol for supporting applications which require spatiotemporal coordination in sensornets. To simultaneously consider the factors of moving speed and direction, this work mainly investigates a new mobicast routing protocol, called variant-egg-based mobicast (VE-mobicast), by utilizing th...
Conference Paper
Full-text available
The IPv6-enabled network architecture has recently attracted much attention. In this paper, we address the issue of connecting MANETs to global IPv6 networks while supporting IPv6 mobility. Specifically, we propose a self-organizing, self-addressing, self-routing IPv6-enabled MANET infrastructure, referred to as IPv6-based MANET. The proposed self-...
Article
A product network defines a class of topologies that are very often used such as meshes, tori, and hypercubes, etc. This paper proposes a generalized algorithm for fault-tolerant parallel sorting in product networks. To tolerate r − 1 faulty nodes, an r-dimensional product network containing faulty nodes is partitioned into a number of subgraphs su...
Conference Paper
Full-text available
In this paper, we propose an overlapping communication protocol using improved time-slot leasing in the Bluetooth WPANS. One or many slave-master-slave communications usually exist in a piconet of the Bluetooth network. A fatal communication bottleneck is incurred in the master node if many slave-master-slave communications are required at the same...
Conference Paper
In this paper, we investigate the multi-node broadcasting problem in a 3-D torus, where there are an unknown number of s source nodes located at unknown positions each intending to broadcast a message of size m bytes to the rest of the network. The torus is assumed to use the all-port model and the popular dimension-ordered routing. Existing conges...
Conference Paper
Full-text available
Increasingly, the services operations which perform data sensing and data propagation in a dynamic environment are important tasks of wireless sensor networks. Therefore, increasing the network lifetime is the main contribution of this investigation. We propose a novel power-aware chessboard-based adaptive routing (PCAR) protocol to support immobil...
Conference Paper
Full-text available
A mobile ad hoc network (MANET) consists of mobile hosts which can peer-to-peer communicate with other mobile hosts through the multi-hopping routing. Each mobile device which operates the mobile computing and wireless communication operations is mainly depended on the battery. The power consumption of the battery is very important for supporting t...
Conference Paper
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We devote to provide teachers and students with short-range wireless learning environment. The wireless learning platform consists of wireless handheld devices (PDA, notebook, etc.) carried by the guide and learners. A content-based image retrieval system (CBIR) is constructed to provide learner with required information using image recognition and...
Article
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SUMMARY The multimedia applications have recently generated much interest in wireless network infrastructure with supporting the quality-of-service (QoS) communications. In this paper, we propose a lantern-tree-based QoS on-demand multicast protocol for wireless ad hoc networks. Our proposed scheme offers a bandwidth routing protocol for QoS suppor...
Conference Paper
Full-text available
In this paper, we describe the development of a mobile butterfly-watching learning (BWL) system which supports independent learners by offering a new pattern of outdoor mobile learning (or called as m-learning) activities. The proposed BWL system was designed using a wireless mobile ad-hoc learning environment. In our designed system, each individu...
Article
The peer-to-peer multimedia applications have recently generated much interest in wireless network infrastructure with supporting the quality-of-service (QoS) communications. In this paper, we propose a new on-demand QoS routing, namely link-state multi-path QoS routing, protocol in a wireless mobile ad-hoc network (MANET). Our proposed scheme offe...
Article
Full-text available
A mobile ad hoc network (MANET) is characterized by multi-hop wireless links in the absence of any cellular infrastructure as well as by frequent host mobility. This paper proposes a SMPQ Spiral-Multi-Path QoS routing protocol in a MANET, while the MAC sub-layer adopts the CDMA-over-TDMA channel model. This work investigates the bandwidth reservati...
Conference Paper
Full-text available
Orthogonal variable spreading factor (OVSF) channelization codes are widely used to provide variable data rates for supporting different bandwidth requirements in WCDMA systems. Much work in the literature has intensively investigated code placement/replacement schemes in OVSF code trees to reduce the code blocking probability and reassignment code...
Article
Full-text available
ress for transmission on Ethernet hardware, November 1982. Status: STANDARD., ftp://ftp.internic.net/rfc/rfc826.txt. [PM94] C. E. Perkins and A. Myles. Mobile IP. Proceedings of International Telecommunications Symposium, pages 415--419, 1994. http://citeseer.nj.nec.com/article/perkins97mobile.html. [PW93] J. Peng and R. J. Williams. Efficient lear...
Article
Abstract This paper develops a mobile learning system for scaffolding students learning about bird-watching. The aim is to construct an outdoor mobile-learning activity using up-to-date wireless technology. The proposed Bird-Watching Learning (BWL) system is designed using a wireless mobile ad-hoc network. In the BWL system, each learner has a PDA...
Article
The peer-to-peer multimedia applications have recently generated much interest in wireless network infrastructure with supporting the quality-of-service (QoS) communications. In this paper, we propose a new on-demand QoS routing, namely link-state multi-path QoS routing, protocol in a wireless mobile ad-hoc network (MANET). Our proposed scheme offe...
Conference Paper
Full-text available
We present a new energy-efficient directed diffusion protocol by using the proposed diagonal-based hexagonal-mesh scheme for a wireless sensor network. The wireless sensor network is more reasonable to build a fixed-topological wireless network environment than the conventional MANET due to the low mobility. Therefore, all sensor nodes are arranged...
Article
This paper develops a mobile learning system for scaffolding students learning about bird-watching. The aim is to construct an outdoor mobile-learning activity using up-to-date wireless technology. The proposed Bird-Watching Learning (BWL) system is designed using a wireless mobile ad-hoc network. In the BWL system, each learner has a PDA (Personal...
Conference Paper
Full-text available
In this paper, we propose a lantern-tree-based QoS multicast protocol with a reliable mechanism for wireless ad-hoc networks, where the MAC sublayer adopts the CDMA-over-TDMA channel model. In this paper, we identify a lantern-tree for developing an on-demand QoS multicast protocol to satisfy certain bandwidth requirements from a source to a set of...
Article
A mobile ad-hoc network (MANET) is characterized by multihop wireless links, in the absence of any cellular infrastructure, as well as by frequent host mobility. Existing on-demand multicasting protocols are classified into tree-based and mesh-based schemes. This paper presents a robust multicast routing protocol, called the Spiral-fat-tree-based O...
Article
Full-text available
Broadcasting is a common operation in a network to resolve many issues. In a mobile ad hoc network (MANET) in particular, due to host mobility, such operations are expected to be executed more frequently (such as finding a route to a particular host, paging a particular host, and sending an alarm signal). Because radio signals are likely to overlap...
Conference Paper
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In this paper, we develop a mobile scaffolding-aid-based bird-watching learning system, which aims to construct an outdoor mobility-learning activity under the up-to-date wireless technology. The proposed bird-watching learning (BWL) system is designed on the wireless mobile ad-hoc network. In the BWL system, each learner device has PDA (personal d...
Conference Paper
Full-text available
We propose a new multicast routing protocol, named hierarchy-based multicast protocol (HMP), for multihop mobile ad-hoc networks. First, we select a set of nodes, where each is a root node, called core, of a constructed local share tree for connecting parts of neighborhood destinations. Based on these local shared trees, the HMP will be executed on...
Conference Paper
A mobile ad-hoc network (MANET) is a characterised by multi-hop wireless links, in the absence of any cellular infrastructure, as well as frequent host mobility. Existing on-demand multicasting protocols are categorized into tree-based and mesh-based strategies. In this paper, we propose a new on-demand multicast routing protocol named spiral-fat-t...
Article
The arrangement graph An,k is not only a generalization of star graph (n−k=1), but also more flexible. In this investigation, we elucidate the problem of embedding of multiple spanning trees in an arrangement graph with the objective of congestion-free. This result is to report how to exploit 2(n−k) edge disjoint spanning trees in an arrangement gr...
Article
An efficient multinode broadcasting algorithm in a wormhole-routed 2-D torus is presented where there are an unknown number of s source nodes located on unknown positions each intending to broadcast a message of size m bytes to the rest of network. The torus is assumed to use the all-port model and the popular dimension-ordered routing. Most existi...