车载无线网络中基于冲突估计的多信道选择策略

J4 ›› 2012, Vol. 50 ›› Issue (03): 557-.

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Multichannel Choose Policy Based on Conflict Estimating in Wireless Vehicular Networks

ZHAO Dingxin, XIE Xianzhong, WANG Zhaoran

Institute of Broadband Access Technologies, College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received:2011-08-22 Online:2012-05-26 Published:2012-05-28
Contact: XIE Xianzhong E-mail:xiexianzhong.cn@gmail.com

Abstract

Abstract:

The authors proposed a Markov chain model and a continuous idle slots model for the transmission mechanism of IEEE 802.11p/1609. Using these two models, we got the conflict probability of WAVE system, on the basis of which, a channel chose policy was presented to get the best access channel. This policy can balance the throughput of all the channels and solve the channel congestion problem in the basal protocol. The simulation results show that the average throughput rate was improved obviously.

Key words: IEEE802.11p/1609, WAVE, conflict estimating, channel chose

CLC Number:

TN820

DIAO Ding-Xin, XIE Xian-Zhong, WANG Zhao-Ran. Multichannel Choose Policy Based on Conflict Estimating in Wireless Vehicular Networks[J].J4, 2012, 50(03): 557-.

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Multichannel Choose Policy Based on Conflict Estimating in Wireless Vehicular Networks

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