A channel access scheme to compromise throughput and fairness in IEEE 802.11p multi-rate/multi-channel wireless vehicular networks

研究成果: 書貢獻/報告類型會議論文篇章同行評審

14 引文 斯高帕斯(Scopus)

摘要

Wireless access in vehicular environment (WAVE) architecture of intelligent transportation system has been standardized in the IEEE 802.11p specification. The WAVE network supports the features of multi-rate and multi-channel and it is going to be widely deployed in realistic roadway environments in order to provide traffic information and convenient services. However, the adopted contention-based medium access control protocol, which confronts the performance anomaly problem, would severely downgrade transmission efficiency between roadside- unit (RSU) and on-board-unit (OBU) because they may use diverse data transmission rates to access channel. As a solution, this paper proposes the vehicular channel access scheme (VCAS) to group a number of OBUs with similar transmission rates into one channel to optimize the channel throughput, while the group sizes of channels are controlled in order to fulfill the fairness requirement. To flexibly compromise the tradeoff between throughput and fairness, a marginal utility model is proposed in this paper. Simulation results demonstrate that the proposed VCAS with marginal utility provides a flexible way to handle versatile vehicular scenarios.

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主出版物標題2010 IEEE 71st Vehicular Technology
DOIs
出版狀態已出版 - 2010
事件2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring - Taipei, Taiwan
持續時間: 16 5月 201019 5月 2010

出版系列

名字IEEE Vehicular Technology Conference
ISSN(列印)1550-2252

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???event.eventtypes.event.conference???2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring
國家/地區Taiwan
城市Taipei
期間16/05/1019/05/10

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