Nurzaman Ahmed

Nurzaman Ahmed
Dartmouth College · Department of Computer Science

B.Tech., M.Tech., Ph.D. (NEHU Shillong), PostDoc (IIT Kharagpur), PDF (IISc Bangalore) Postdoctoral Scholar (Dartmouth College USA)

About

55
Publications
13,730
Reads
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669
Citations
Citations since 2016
48 Research Items
665 Citations
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
Additional affiliations
June 2017 - present
North Eastern Hill University
Position
  • Senior Researcher
November 2015 - May 2017
North Eastern Hill University
Position
  • Researcher
February 2015 - September 2015
Trans Technologies Solution
Position
  • Network Engineer

Publications

Publications (55)
Article
Underwater Internet of Things (IoT) faces challenges, such as low data rate, high node mobility, high error probability, and propagation delay. Furthermore, underwater multimedia communication is more challenging, as it requires a high data rate and reliable delivery. The next-generation networking paradigm—software-defined network (SDN)—improves f...
Conference Paper
Full-text available
The mobility of end users in fog-computing environment necessitates the need for task offloading and migration. But, the resource-constrained nature of the fog devices makes them challenging. While offloading, fog node selection based on the location of the mobile devices remains an intricate issue. This paper proposes L3Fog, a learning-based locat...
Article
IEEE 802.11ah is considered as a promising and scalable solution for connecting a large number of drones. With the support of sub-1 GHz channel bands, relay, and a group-based channel access mechanism, 802.11ah can help drone stations to collect commands, send data, and process response to the control room. However, achieving the required throughpu...
Article
High propagation delay, high error probability, floating node mobility, and low data-rate, are the key challenges for Underwater Wireless Multimedia Sensor Networks (UMWSNs). In this paper, we propose RL-MAC, a Reinforcement Learning (RL)-based Medium Access Control (MAC) protocol for multimedia sensing in an Underwater Acoustic Network (UAN) envir...
Article
Due to the resource-constraint nature and lack of lightweight computing solutions for diagnostic devices in healthcare IoT, provisioning time-critical responses is still challenging. In this paper, we propose DC-Health, a Dew Computing enabled IoT healthcare solution for offline and ultra-low latency decisions. The proposed solution connects a larg...
Conference Paper
Due to the lack of an integrated communication and computation architecture for Software-Defined Healthcare IoT (SD-HI), provisioning critical services is challenging. In this paper, we propose SD-Health, an edge-based decision making and task allocation (EDT) scheme for SD-HI. The proposed SD-HI network uses Machine Learning (ML)-based approach to...
Article
In this paper, we propose 6G-SDI, a Software-Defined Network (SDN)-based green communication scheme for 6G-enabled Internet of Things (IoT) to control real-time actuation and flow-table configuration. 6G-SDI considers collisions during uplink transmissions and allocates a downlink slot to send critical alerts and commands such as CO2 level in a reg...
Article
Full-text available
With the recent developments in Wireless Mesh Networks (WMN), provisioning of Quality of Service (QoS) for real time applications is considered as an important but challenging area of research. QoS support for various real time applications are implemented in different layers of the protocol stack. The diversity of such research efforts has contrib...
Article
In this article, we propose a reliable and efficient medium access control (MAC) protocol, RE-MAC, for resource-constraint underwater acoustic multimedia communication systems. RE-MAC achieves scalability by utilizing a hybrid MAC protocol smartly, which takes advantage of contention, reservation, and null data packet (NDP) based channel access mec...
Article
The rapid advancement of the Internet of Things (IoT) in real-world applications has attracted immense research endeavors in the last few years. It has got tremendous potential in Industrial automation and various other fields. The use of IoT has changed the perspective of general applications in today’s world. In this paper, a next-generation arch...
Article
Full-text available
The emerging IEEE 802.11ah is a promising communication standard for large-scale networks particularly the Internet of Things (IoT). The single-channel-based centralized channel access mechanism employed in 802.11ah does not scale well in such networks and leads to poor data reception quality. In this paper, we propose an Enhanced and Scalable Medi...
Preprint
Internet of Things (IoT) with edge computation enhances efficiency, safety, and availability of an industrial automation system. However, there is a continued effort to increase the reliability of the system with minimal downtime. This can be achieved through a modular, re-configurable, and integrable system design approach. In this paper, we propo...
Preprint
Internet of Things (IoT) with edge computation enhances efficiency, safety, and availability of an industrial automation system. However, there is a continued effort to increase the reliability of the system with minimal downtime. This can be achieved through a modular, re-configurable, and integrable system design approach. In this paper, we propo...
Article
Full-text available
Due to the resource-constraint nature and lack of lightweight computing solutions for diagnostic devices in healthcare IoT, provisioning time-critical responses is still challenging. In this paper, we propose DC-Health, a Dew Computing enabled IoT healthcare solution for offline and ultra-low latency decisions. The proposed solution connects a larg...
Preprint
Full-text available
The recent IEEE 802.11ah amendment has proven to be suitable for supporting large-scale devices in Internet of Things (IoT). It is essential to provide a minimum level of Quality of Service (QoS) for critical applications such as industrial automaton and healthcare. In this paper, we propose a QoSaware Medium Access Control (MAC) layer solution to...
Preprint
Full-text available
div>Due to the multi-hop, long-distance, and wireless backbone connectivity, provisioning critical and diverse services face challenges such as low latency and reliability. This paper proposes ioFog, an offline fog architecture for achieving reliability and low latency in a large backbone network. Our solution uses a Markov chain-based task predict...
Preprint
div>Due to the multi-hop, long-distance, and wireless backbone connectivity, provisioning critical and diverse services face challenges such as low latency and reliability. This paper proposes ioFog, an offline fog architecture for achieving reliability and low latency in a large backbone network. Our solution uses a Markov chain-based task predict...
Preprint
div>IEEE 802.11ah is considered as a promising and scalable solution for connecting a large number of drones. With the support of sub-1GHz channel bands, relay, and group-based channel access mechanism, 802.11ah can help drone stations for collecting commands, sending data, and processing response to the control room. However, achieving required th...
Preprint
Full-text available
div>IEEE 802.11ah is considered as a promising and scalable solution for connecting a large number of drones. With the support of sub-1GHz channel bands, relay, and group-based channel access mechanism, 802.11ah can help drone stations for collecting commands, sending data, and processing response to the control room. However, achieving required th...
Article
Full-text available
The IEEE 802.11ah, also known as WiFi HaLow, is a scalable solution for medium-range communication in Internet of Things (IoT). While provisioning support for the IoT and Machine-to-Machine (M2M) communication, IEEE 802.11ah leverages various innovative Medium Access Control (MAC) layer concepts such as Restricted Access Window (RAW), hierarchical...
Article
Full-text available
Due to the lack of unified standards in the Internet of Things (IoT), heterogeneity in terms of protocol and packet types exist. In such a case, accurate traffic identification using port-based and payload-based solutions are not suitable for flow processing in Software-Defined IoT (SD-IoT). In this article, we propose iAcceSD , an intelligent Ac...
Article
An enormous amount of data processing occurs at the cloud and edge to carry out different kinds of analytics in Industrial Internet of Things (IIoT). To deal with the analytics using such a huge amount of IIoT data, different Deep Learning (DL)-based analytical models are deployed. The learning process in an analytical model needs to follow a relia...
Article
Full-text available
The authentication mechanism in IPv6 over low‐power wireless personal area networks (6LoWPAN) uses media access control identifier and IPv6 address. The traditional wireless sensor network considers three‐factor authentication mechanism. These factors, namely, username, password, and biometric create a huge overhead in Internet of things due to res...
Conference Paper
Full-text available
Due to the low data-rate, high propagation delay, floating node mobility, and high error probability, underwater multimedia communication is still challenging. In this paper, we propose an acoustic-based reliable streaming network for resource-constrained underwater communication. The proposed protocol uses a Null Data Packet (NDP)-based contention...
Conference Paper
Full-text available
In this paper, we propose a criticality-aware traffic forwarding scheme for mobile devices to maximize the efficiency of the software-defined healthcare network. We implement machine learning based-approach to find the criticality of flows combining the location of a person in the system. Concerning the levels of the criticality in traffic, the pro...
Conference Paper
Full-text available
In this paper, we propose a secure programmable fog architecture for future Internet of Things (IoT) applications. The programmable feature in the proposed architecture enables us to achieve additional flexibility and support changes over the fog nodes deployed on a large scale network, where individual fog nodes are managed by the centralized fog...
Conference Paper
Full-text available
In this paper, we propose a Blockchain-based solution for the recovery of an SDN controller back to a previously known state upon sudden failure. A lightweight minimal Blockchain ledger containing metadata details about each controller event is maintained by the switches. The set of all instructions given by the controller to the switches denotes t...
Article
IPv6 over Low power Wireless Personal Area Network (6LoWPAN) has been widely used for large-scale sensing and actuating purposes in Internet of Things (IoT). Though promising, many challenges like high latency, heterogeneity, and packet loss persist. To mitigate these challenges, Software-Defined Network (SDN) technique can be hybridized with exist...
Article
In this letter, we propose a novel channel access mechanism for IEEE 802.11ah to reduce delay and energy consumption in large-scale networks. The proposed protocol predicts the service interval of a monitoring application and schedules the subsequent frames before their arrivals without requiring any further contention. By doing so, the proposed pr...
Article
Full-text available
Security is one of the most critical element in Internet of Things (IoT) which is often neglected in development. IoT devices demand lightweight but end-to-end authentication mechanism to enable secure access of data and to protect itself from unauthorized access. This paper analyses the security solutions for 6LoWPAN-based IoT networks. We compare...
Article
Full-text available
Internet of Things (IoT) gives a new dimension in the area of smart farming and agriculture domain. With the use of fog computing and WiFi-based long distance network in IoT, it is possible to connect the agriculture and farming bases situated in rural areas efficiently. To focus on the specific requirements, we propose a scalable network architect...
Article
Full-text available
Quality of service provisioning for real-time data such as audio and video in large Internet of Things networks is considered to be a challenging issue. In order to maintain desirable service quality of the sensed data from the environment, data aggregation-based schemes are highly used. Such schemes gather and aggregate data packets in an efficien...
Article
IEEE 802.11ah is proven to be a suitable communication standard for Internet of Things. It supports a wide range of modulation and coding schemes (MCSs) along with different data rates. The Restricted Access Windows (RAW)-based channel access mechanism facilitates scalable communication among a large number of devices. However, due to the absence o...
Conference Paper
Provisioning quality of service in a large-scale network of resource-constraint heterogeneous devices in Internet ofThings is a huge task for providing better application service.Application wise QoS can be achieved by eliminating the unnec-essary delay, increasing the throughput, utilizing the dedicatedbandwidth fully and also reducing the energy...
Conference Paper
Full-text available
The emerging IEEE 802.11ah seems to be a promising communication standard for Internet of Things (IoT) which yields better scalability, lower energy consumption, and larger coverage area. Centralized channel access mechanism employed in 802.11ah may not scale well in a large network and hence lead to poor quality of data reception. In this paper, w...
Article
Full-text available
With the recent advancements of Information and Communication Technologies (ICTs), e-learning is revolutionizing the education sector. Unfortunately, due to low Internet penetration, rural regions are not benefited from this development as expected. WiFi-based Long Distance (WiLD) network is emerging as a suitable low-cost solution for covering eur...
Conference Paper
Internet of Things (IoT) is a new paradigm which is enormously gaining ground in today's world. In order to maintain desirable service quality in the transmission of sensed data, data aggregation schemes are highly used. The main goal of data aggregation scheme is to collect and aggregate data packets in an efficient manner so as to reduce power co...
Article
Full-text available
The emerging IEEE 802.11ah is a promising communication standard that supports a massive number of heterogeneous devices in the Internet of Things (IoT). It provides attractive features like improved scalability, low energy consumption, and coverage of large area. In this paper, we analyze the performance of IEEE 802.11ah, and compare it with a pro...
Chapter
The concept of Internet of Things (IoT) opens up a new vision for future Internet where not only the users or computing systems but also the everyday objects are capable of processing, communicating, sensing, and actuating. Various IoT applications help in the quality of living through the deployment of a massive number of devices equipped with wir...
Article
Full-text available
WiFi is being considered as an attractive option in providing low cost Internet connectivity to rural areas, and thereby reducing Digital Divide with urban areas. Most of the WiFi-based Long Distance network architectures extend Internet to rural regions through a single gateway node which is connected to high speed Internet. If the gateway node fa...
Conference Paper
Internet of Things (IoT) is relatively a new paradigm which is tremendously gaining ground in the scenario of modern age. IoT can be thought as a worldwide network of interconnected objects which are uniquely identifiable and addressable. Billions of smart devices such as sensors and RFIDs are integrated together in IoT. To exchange information amo...
Article
Routing plays a crucial role in provisioning Quality of Service (QoS) over WiFi-based Long Distance (WiLD) mesh networks. Traditional routing protocols normally maintain a single optimal path between each pair of source and destination nodes. In gateway-based mesh networks, the optimal paths between gateway and other nodes often overlap and hence d...
Conference Paper
Full-text available
Last two decades have witnessed a huge deployment of telecommunication infrastructure in order to enhance a wide range of social, political and economic factors. Unfortunately, a little effort put in setting up these vital infrastructures in the rural areas, especially of developing countries has resulted in marginalization. A viable solution to th...
Conference Paper
WiFi-based Long Distance (WiLD) networks are expected to run real-time applications such as Video-conferencing, Telemedicine, E-learning, VoIP (Voice over IP), etc. Providing Quality of Service (QoS) guarantees for various real-time applications in such a resource-constrained network is a challenging issue. The time slots allotted to a node in TDMA...

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Projects

Projects (2)
Project
Designing a QoS Scheme for WiFi-based Long Distance Networks in Hilly Terrain Areas
Project
Designing QoS architecture for IoT involving heterogeneous technologies.