摘要
针对AdHoc网络中不同优先级业务以及网络处于不同业务负荷情况下对网络的接入时延有不同要求的特点,提出了一种应用于AdHoc网络中的有冲突避免的流量自适应多址接入协议FA_MACA.它不仅可以避免无线信道中存在的"隐藏终端"问题,同时还可以根据网络当前的流量以及业务的不同优先级动态自适应的调整接入时延,尽可能地减少碰撞,从而达到改善网络性能的目的.仿真结果表明该协议可以有效地改善网络的性能.
A novel MAC protocol for the Ad Hoc Network-FAMACA (Flow Adaptive Multiple Access with Collision Avoidance) is presented. FAMACA is an improvement of the well known MACA (Multiple Access Collision Avoidance) protocol, which not only avoids the 'hidden terminal' problem in a wireless channel, but also adaptively adjusts the access delay based on the traffic flow and traffic priority of the network, thus decreasing the collision and then improving the performance of the network. Simulation results show that FAMACA outperforms several known multiple access protocols using traditional network access delay algorithms.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2002年第6期713-715,共3页
Journal of Xidian University
基金
国家"863"基金资助项目(2001AA123031)
华为科技基金资助项目
