2006 IEEE International Conference on Communications 2006
DOI: 10.1109/icc.2006.255667
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Contention-Based Prioritized Opportunistic Medium Access Control in Wireless LANs

Abstract: In wireless environments, the inherent time-varying characteristics of the channel pose great challenges on medium access control design. In recent years, multiuser diversity and opportunistic medium access control schemes have been proposed to deal with the channel variation in order to efficiently improve the network throughput. In this paper, we propose a novel MAC protocol called Contention-Based Prioritized Opportunistic (CBPO) Medium Access Control Protocol. This protocol takes advantage of multiuser div… Show more

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Cited by 10 publications
(5 citation statements)
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“…Specifically, based on MultiRTS channel probing, only one of the backlogged users with channel quality better than certain level is allowed to access media. In [50], based on OSAR, the authors proposed a contention-based prioritized opportunistic scheme to reduce the probing overhead in which the channel conditions can be replied simultaneously by using BB contention method. In [51], the authors further proposed a new scheme, opportunistic medium access and auto rate (OMAR), to efficiently utilize the shared medium in 802.11-based ad hoc networks by taking advantage of diversity, distributed scheduling, and adaptivity.…”
Section: E Joint Scheduling and Rate Adaptation For Opportunistic Trmentioning
confidence: 99%
“…Specifically, based on MultiRTS channel probing, only one of the backlogged users with channel quality better than certain level is allowed to access media. In [50], based on OSAR, the authors proposed a contention-based prioritized opportunistic scheme to reduce the probing overhead in which the channel conditions can be replied simultaneously by using BB contention method. In [51], the authors further proposed a new scheme, opportunistic medium access and auto rate (OMAR), to efficiently utilize the shared medium in 802.11-based ad hoc networks by taking advantage of diversity, distributed scheduling, and adaptivity.…”
Section: E Joint Scheduling and Rate Adaptation For Opportunistic Trmentioning
confidence: 99%
“…Each receiver replies the current channel condition and then the sender schedules the rate adaptive transmission to the receiver with the best channel quality. In [5], the authors improved the OSAR and proposed a Contention-Based Prioritized Opportunistic (CBPO) scheme to reduce the probing overhead, in which the channel conditions can be replied simultaneously by using Black-Burst (BB) contention method. However, the previous algorithms do not consider the interaction among neighboring transmitters, i.e.…”
Section: Introductionmentioning
confidence: 99%
“…In wireless networks, a node may have packets destined to several neighboring nodes. Selecting instantaneously an "on-peak" receiver with the best channel improves the channel utilization efficiency [3]- [6]. For IEEE 802.11 based wireless ad hoc networks, Opportunistic packet Scheduling and Auto Rate (OSAR) scheme [4] and Medium Access Diversity (MAD) scheme [5] are proposed to exploit multiuser diversity, in which a sender multicasts a channel probing message (e.g.…”
Section: Introductionmentioning
confidence: 99%