作　　者： ; ;

机构地区： 深圳大学信息工程学院

出　　处： 《深圳大学学报（理工版）》 2007年第2期144-148,共5页

摘　　要： 针对无线异构链路环境中传统TCP协议拥塞控制机制效率较低的问题,提出一种基于ECN标记策略的优化算法.该算法针对常用的单一标记方法,在标记对象和标记位置中灵活地采用双向机制,有效提高了无线数据传输效率.用标准网络仿真软件NS-2进行仿真,结果显示该算法优于现有常用算法. TCP （transmission control protocol） has extended its reach to the wireless realm in that it has also been used widely in all sorts of wireless environments. However, the congestion control approaches designed for wired TCP or even some wireless situations are not effective enough. We propose a new explicit congestion control （ECN） strategy Differentiated Marking, which works by using a two-way approach to further reduce the time required for the sender and the receiver to note the congestion problem, possibly induced by too heavy traffic or burst errors caused by the time-varying channel quality.

关 键 词： 无线 显示拥塞通知 同构 异构无线网络 时变信道 拥塞控制

领　　域： [电子电信] [电子电信] [电子电信] [电子电信]