Jeu-Yih Jeng

Telecommunication Laboratories, Chunghwa Telecom Co., Ltd. · Billing Information Laboratory

Reliability and stability have been treated as the major requirements for the Business Support System (BSS) in telecommunications networks. It is crucial and essential for service providers to maintain good operating state of the BSS. In this paper, we aim at system error prediction for a BSS, i.e., we predict occurrences of the abnormal state or b...

The purpose of time-dependent smartdatapricing (abbreviated as TDP) is to relieve network congestion by offering network users different prices over varied periods. However, traditional TDP has not considered applying machine learning concepts in determining prices. In this paper, we propose a new framework for TDP based on machine learning concept...

With the launching of 4G services and evolving in mobile technology, data-hungry applications are ubiquitous and embraced by more and more customers. It is obvious that customers are more likely to run out of their monthly data allowance when using these applications. Therefore, network operators introduce many feasible upselling products for custo...

Aiming to meet the explosive growth of mobile data traffic and reduce the network congestion, we study Time Dependent Adaptive Pricing (TDAP) with threshold policies to motivate users to shift their Internet access from peak hours to off-peak hours. With the proposed TDAP scheme, Internet Service Providers (ISPs) will be able to use less network ca...

As mobile devices become increasingly popular, traffic through data centers is increasing rapidly. Cisco has predicted that data center traffic will reach 7.7 Zettabytes in 2017, of which 76% will be generated by the internal exchange of data. Recent research has revealed a severe problem of congestion in data centers that is called TCP Incast. TCP...

Ternary content addressable memories (TCAMs) are widely used in network devices carrying out the core operation of single-operation lookups. TCAMs are the core component of many networking devices such as routers, switches, firewalls and intrusion detection/prevention ...

Today, Internet services are utilized as major service platforms to provide business services. Web-based Internet applications that follow the multi-tier architecture are a well-accepted computation model when providing Internet services. Such a model suffers from interruption caused by software failures, hardware errors or software maintenance. Th...

3GPP defines the Policy and Charging Control (PCC) architecture to enforce network resources dynamically and to manage charging functions. In this paper, we present the design and implementation of Group Accounting System (GAS). GAS is based on the PCC architecture and is integrated with the IP Multimedia Subsystem (IMS) of Chunghwa Telecom. GAS al...

Wireless charging technology is considered as one of the promising solutions to solve the energy limitation problem for large-scale wireless sensor networks. Obviously, charger deployment is a critical issue since the number of chargers would be limited by the network construction budget, which makes the full-coverage deployment of chargers infeasi...

The Evolved Packet System (EPS) is standardized to support a common IP-based core network with heterogeneous radio accesses in the latest 3GPP release. In the EPS, the Policy and Charging Control (PCC) framework provides dynamic policy control combined with real-time charging management. Long core network signaling for PCC degrades session continui...

Different from unicast data delivery through dedicated channels, next generation Multicast and Broadcast Service (MBS) delivers data with higher bandwidth efficiency through multicasting. When a group of online users receive the same MBS content, the average MBS network cost per user can be significantly reduced. However, traditional charging metho...

Data center plays an important role in cloud computing. Cloud computing provides novel perspectives in Internet technologies and raises issues in the architecture, protocol, and implementation of existing networks and data centers. Although various cloud-based data center architectures have been proposed in recent years, some challenging issues, e....

The service providers introduce new telecom services, which are managed by different Operations Support Systems (OSSs), to retain existing and attract new customers. The working group, TeleManagement Forum (TM Forum), proposed a unified network infrastructure, Next Generation Operations Systems and Software (NGOSS), as the standard interface betwee...

As mobile technologies evolved, the mobile networks provided users not only high mobility, but also high data rates and flexible services. Meanwhile, Internet services had been very successful from 1970s to date. However, the Internet and the mobile telecommunications evolved separately and were not compatible until 3GPP proposed the IP Multimedia...

Internet services are now the major service platforms to provide services for all sectors of business and industries. To assure the correctness for concurrent data access, transaction-based Internet service is a well-accepted computation model. Because of the proliferation of networked devices and globalization, internet services can barely underta...

3GPP has standardized Multimedia Broadcast Multicast Service (MBMS) to deliver multimedia services with high bandwidth efficiency through IP multicasting technology. In this paper, we present the implementation details of an MBMS test-bed with the standardized Policy and Charging Control (PCC) to realize the dynamic charging plan for multicast serv...

This paper studies credit allocation schemes for quality-class oriented services based on the 3GPP policy and charging control (PCC) architecture. According to users' preference for the service quality, three credit allocation schemes, Minimum Credit First (MCF), Average Quality First (AQF) and Best Quality First (BQF), are proposed and investigate...

The convergence of radio access technologies with all-IP core network has gained significant attention recently. Through the all-IP based policy and charging control (PCC) architecture standardized in 3GPP R8, the charging rules are consistent with application-level and IP-level policy control. It is essential to investigate the signaling overhead...

During an online charging general packet radio service (GPRS) session, a number of mid-session events, such as changes of quality of service (QoS), could dynamically affect the rating of the in-progress service. When such events occur, the GPRS support node needs to re-authorize the granted credit units with the online charging system (OCS). This p...

When the basic functionalities of a wireless mobile network have been achieved, customers are then more interested in value-added mobile applications. In order to attract more customers to such mobile applications, a solid, secure and robust trading model is a must. This paper proposes such a secure trading model named mobile electronic payment (ME...

The IP multimedia core network subsystem (IMS) provides real-time multimedia services for Universal Mobile Telecommunications System (UMTS). Through recharge threshold-based credit reservation (RTCR) mechanism, prepaid IMS services can be supported by the online charging system (OCS) in UMTS. In RTCR, when the remaining amount of prepaid credit is...

Universal mobile-telecommunication system supports IP multimedia services through the IP multimedia core-network subsystem (IMS). This paper proposes a prepaid application server (PAS) to handle both the prepaid calls and messaging services in the IMS. When both voice and messaging are simultaneously offered, a potential problem is that the deliver...

Prepaid phone service requires a user to make payment before calling. In 2.5G or the 3G networks, a user may be engaged in multiple voice and/or data prepaid sessions at the same time. For such services, it is important to distribute appropriate amounts of prepaid credit units to simultaneously executed sessions of a user. By considering the univer...

For high speed mobile communication applications, the data rate can be increased by using multiple channels (or time slots) instead of single channel (or time slot). To reduce the high blocking rate of multiple channels assignment, flexible resource allocation strategies are exercised. This paper proposes a generic MSC resource allocation algorithm...

Global system for mobile communications (GSM) call reestablishment service allows a mobile station to resume a call in which the radio link has been temporarily interrupted due to interference or bad signal (which is referred to as an interrupted call). This service increases end user satisfaction and network quality perception. We propose analytic...

In GSM High Speed Circuit Switched Data (HSCSD), the data rate can be increased by using multiple time slots instead of single time slot. Multiple time-slot assignment results in high blocking rate. To accommodate more users, flexible resource allocation strategies have been proposed. Since GSM follows TDMA/FDMA, the channels (time slots) in a base...

For high speed mobile communication applications, the data rate can be increased by using multiple channels (or time slots) instead of one channel. To reduce the high blocking rate of multiple channels assignment, flexible resource allocation strategies have been proposed. This paper proposes the Equal Resource Sharing Allocation scheme (ERSA schem...

A new GSM data protocol called high speed circuit switched data (HSCSD) have been developed by European Telecommunications Standards Institute (ETSI) for high speed file transfer and mobile video applications. HSCSD increases data rate by using multiple TDMA time slots (up to 8) instead of one time slot in the current GSM implementation. The proble...