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基于媒质共享的无线Ad hoc网络拥塞避免策略
引用本文:马琳,张军,刘凯. 基于媒质共享的无线Ad hoc网络拥塞避免策略[J]. 华南理工大学学报(自然科学版), 2011, 39(9): 120-127. DOI: 10.3969/j.issn.1000-565X.2011.09.021
作者姓名:马琳  张军  刘凯
作者单位:北京航空航天大学电子信息工程学院∥国家空管新航行系统技术重点实验室,北京,100191
基金项目:国家“973”计划项目(2011CB707000); 国家自然科学基金创新研究群体科学基金资助项目(60921001); 国家“863”计划项目(2011AA110101)
摘    要:针对无线Ad hoc网络的拥塞问题,提出了一种基于媒质共享的公平拥塞控制( MCFCC)算法,并与典型算法LRED进行了比较.在MCFCC算法中,节点根据竞争共享信道时的退避次数计算退避率,据此进一步得出分组丢弃概率,从而能合理控制源节点的分组发送速率,并可通过快速准确地判断节点和网络的拥塞程度,解决共享媒质冲突和拥塞...

关 键 词:无线Ad hoc网络  拥塞控制  媒质接入控制  业务竞争  公平性

Medium-Sharing-Based Congestion Avoidance Strategy in Wireless Ad hoc Networks
Ma Lin,Zhang Jun,Liu Kai. Medium-Sharing-Based Congestion Avoidance Strategy in Wireless Ad hoc Networks[J]. Journal of South China University of Technology(Natural Science Edition), 2011, 39(9): 120-127. DOI: 10.3969/j.issn.1000-565X.2011.09.021
Authors:Ma Lin  Zhang Jun  Liu Kai
Abstract:In order to overcome the congestion in wireless Ad hoc networks,a novel congestion control algorithm,namely,medium contention-based fair congestion control(MCFCC) algorithm,is proposed and compared with the typical algorithm LRED.In the MCFCC algorithm,the backoff ratio of the node is calculated according to the backoff times in competing for shared channels,and the corresponding packet dropping probability is further obtained.Thus,the packet transmission rate of the source nodes can be reasonably controlle...
Keywords:wireless Ad hoc networks  congestion control  medium access control  traffic contention  fairness  
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