重庆大学学报Issue(8)：111-118,8.DOI:10.11835/ji.ssn1.000-582X2.0140.80.16
可保持最大吞吐量的IEEE8021．1DCF协议功率控制机制
To maintain maximum throughput IEEE 802 1.1 DCF protocol power control mechanism
摘要
Abstract
Transmission power control has been extensively used not only to save energy ,but also to improve the network throughput in wireless ad hoc networks .A new adaptive power control algorithm ,i e. ., PCMAC algorithm ,based on IEEE 802 .11 DCF protocol for Vehicular Ad hoc networks is proposed . According to the communication status ,the algorithm dynamically adjusts the transmit powers of the CTS frames of receiving nodes and the data packets of the transmitting nodes ,furthermore ,adjusts the transmit powers of the RTS frames of the transmitting nodes according to the optimal number of access nodes such that the network throughput is maximized ,in order to avoid conflicts and increase throughput .The simulation results show that the proposed PCMAC (power control media access control)algorithm can not only decrease the average energy consumption so as to prolong the lifetime of the network ,but also improve spatial reuse of the wireless channel so as to improve the average throughput of the network .关键词
Ad Hoc网络/DCF协议/功率控制/系统吞吐量Key words
Ad Hoc networks/DCF protocol/power control/throughput分类
信息技术与安全科学引用本文复制引用
张海荣,郭松涛,陈飘..可保持最大吞吐量的IEEE8021．1DCF协议功率控制机制[J].重庆大学学报,2014,(8):111-118,8.基金项目
国家级大学生创新基金项目资助项目（201310635043）；国家自然科学基金资助项目 （）
