Opportunistic Packet Scheduling and Media Access Control for Wireless LANs 


Vol. 33,  No. 2, pp. 191-197, Feb.  2008


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  Abstract

For the efficient transmission of burst data in the time varying wireless channel, opportunistic scheduling is one of the important techniques to maximize multiuser diversity gain. In this paper, we propose a distributed opportunistic scheduling scheme for wireless LAN network. A proportional fair scheduling, which is one of the opportunistic scheduling schemes, is used for centralized networks, whereas we design distributed proportional fair scheduling (DPFS) scheme and medium access control with distributed manner. In the proposed DPFS scheme, each receiver estimates channel condition and calculates independently its own priority with probabilistic manner, which can reduce excessive probing overhead required to gather the channel conditions of all receivers. We evaluate the proposed DPFS using extensive simulation and simulation results show that DPFS obtains higher network throughput than conventional scheduling schemes and has a flexibility to control the fairness and throughput by controlling the system parameter.

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  Cite this article

[IEEE Style]

H. Park, "Opportunistic Packet Scheduling and Media Access Control for Wireless LANs," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 2, pp. 191-197, 2008. DOI: .

[ACM Style]

Hyung-Kun Park. 2008. Opportunistic Packet Scheduling and Media Access Control for Wireless LANs. The Journal of Korean Institute of Communications and Information Sciences, 33, 2, (2008), 191-197. DOI: .

[KICS Style]

Hyung-Kun Park, "Opportunistic Packet Scheduling and Media Access Control for Wireless LANs," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 2, pp. 191-197, 2. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880