An enhanced cross layer downlink scheduling algorithm for IEEE 802.16 networks

Asadi, Arash; Wei, Tan Su

doi:10.1109/icoin.2011.5723181

Cited by 3 publications

(2 citation statements)

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“…The second layer employs a dynamic priority queue and dynamic WFQ algorithm. In [19], two multi-layer scheduler (SP + WFQ) and (EDF + WFQ + FIFO) have been included in their performance analysis.…”

Section: Literature Reviewmentioning

confidence: 99%

“…On top of the classical scheduling that have been proposed more than a decade ago, such as round robin and weighted fair queuing [12][13][14][15][16], researchers are now developing more sophisticated schedulers that comprise multiple layers, in which each layer can has one or more queues for different service flows, and each service flow may employ different algorithms [17][18][19]. A received packet is processed at one layer, and then passed to the next layer and so on.…”

Section: Literature Reviewmentioning

confidence: 99%

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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: Literature Reviewmentioning

confidence: 99%