Bandwidth Recycling in IEEE 802.16 Networks

Chuck, David; Chang, J. Morris

doi:10.1109/tmc.2010.115

Cited by 16 publications

(13 citation statements)

References 10 publications

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“…For instance, the nature of variable bit rate may cause additional reserved bandwidth as it is difficult to accurately estimate the required bandwidth [31]. Bandwidth wastage may also occur due to the time gap between bandwidth reservation and allocation [32].…”

Section: Bandwidth Reservation Frameworkmentioning

confidence: 99%

Resource management for symmetrical applications over heterogeneous services in IEEE 802.16

Chow

2016

Wireless Netw

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Symmetrical applications are multimedia applications that require both uplink and downlink connectivity. The demands of symmetrical applications are expected to grow rapidly in the future but there is still no resource management that can efficiently support symmetrical applications over heterogeneous services in IEEE 802.16 system. In this paper, we propose a resource management scheme that can support symmetrical applications along with heterogeneous services. The proposed scheme comprises of a joint uplink and downlink allocation, dynamic control system and bandwidth recycling framework. Simulation studies show that the proposed scheme outperforms asymmetrical scheme in terms of throughput, delay and packet loss. The proposed scheme also achieves similar performance gains in more complex environment.

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Section: Bandwidth Reservation Frameworkmentioning

confidence: 99%

Resource management for symmetrical applications over heterogeneous services in IEEE 802.16

Chow

2016

Wireless Netw

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“…These simulation parameters are adopted from [28][29][30][31][32]. Scenario 1 namely Equivalent Environment, aims to test the overall transmission efficiency, robustness of QoS and the fairness of allocation in equal channel condition after coupling uplink and downlink allocation processes.…”

Section: Simulation Modelingmentioning

confidence: 99%

“…The metrics used to evaluate the performances are uplink and downlink transmission gap (service gap) [22], total throughput, total end-to-end delay [35] and total packet loss [29].…”

Section: Performance Metricsmentioning

confidence: 99%

Resource Management and QoS Provisioning for Duplex Services in IEEE 802.16

New

Chow

2014

Wireless Pers Commun

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Duplex services are multimedia services that requires good connectivity in both uplink and downlink such as VoIP, video conferencing and interactive gaming. A weak connection in either direction may cause degradation of performances and dissatisfaction of user experience. Most researchers do not consider this issue and treat resource allocations in uplink and downlink independently. For this reason, the conventional resource management schemes do not guarantee a good duplex connectivity. Generally, duplex schemes require some relation or information to be exchanged between uplink and downlink resource allocation processes. The existing duplex resource allocation schemes, however, have high complexity and do not adhere to the IEEE 802.16 standard. In this paper, we propose a duplex resource management scheme for IEEE 802.16 network to enhance the user experience and to improve the network performances. The proposed resource management scheme is a MAC layer function that corelates the uplink and downlink allocation processes using a newly proposed duplex variable. Simulation studies show that the proposed scheme brings significant benefit to duplex services in the IEEE 802.16 networks and outperforms the conventional and existing schemes in terms of uplink and downlink transmission gap, QoS performances and fairness. . He has extensive research interests including wireless networking, wireless network security and optical networking. He has been a member of the technical program committee for more than 110 international conferences. He has been a technical track chair, tutorial chair, publication chair, and session chair for more than 50 international conferences. Dr. Ma has published more than 200 international research papers. He currently serves as an

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Section: Introductionmentioning

confidence: 99%

“…In recent years, many research works [4], [5], [6], [7] contributed their efforts to propose suitable resource scheduling algorithms for VBR real-time services. Chuck and Chang [4] use bandwidth recycling scheme to improve the overall throughput. Park [5] considered the factors, such as average arrival rate, the average service rate, the delay constraint of each packet, and the number of packets in queue, to schedule the bandwidth in each MAC frame optimally.…”

Section: Introductionmentioning

confidence: 99%

Fairness consideration of bandwidth scheduling for real-time services in IEEE 802.16m wireless networks

Chen

Tarn

Lee

2013

2013 International Conference on Computational Problem-Solving (ICCP)

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Although the scheduling problem of the uplink transmission in the IEEE 802.16 broadband wireless access standard has been extensively discussed, most of the results focus on the quality of service (QoS) issues, e.g. throughput and delay requirement. In real-time services, violent variance of bandwidth request usually triggers some problems of resource allocation, especially when the system bandwidth is saturated. In this paper, we introduce a fair scheduling algorithm named contribution-based scheduling algorithm (CSA) for uplink realtime polling service (rtPS). In this algorithm, a mobile subscriber (MS) is endowed with a contribution credit value at the end of each frame, which is based on the MS's contribution to the system resource utilization. The base station (BS) will allocate system resource according to the credit value. With the proposed fair scheduling algorithm, we guarantee the fairness, delay requirement and bandwidth utilization at the same time which cannot be fully achieved in existing studies.

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Bandwidth Recycling in IEEE 802.16 Networks

Cited by 16 publications

References 10 publications

Resource management for symmetrical applications over heterogeneous services in IEEE 802.16

Resource management for symmetrical applications over heterogeneous services in IEEE 802.16

Resource Management and QoS Provisioning for Duplex Services in IEEE 802.16

Fairness consideration of bandwidth scheduling for real-time services in IEEE 802.16m wireless networks

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