高速无线网络通信中的ARQ方案综述  

ARQ scheme in high-speed wireless network

作　　者：李涛 

机构地区：[1]达县师范高等专科学校计科系,四川达州635000

出　　处：《成都信息工程学院学报》2005年第5期582-586,共5页Journal of Chengdu University of Information Technology

摘　　要：自动重发请求(ARQ)是高速无线网络最常用的有效差错控制方法。SR-ARQ和GBN-ARQ传统差错控制方案已不适应高速无线需要,PRIME ARQ和SRPB ARQ改进方案优化了确认开销和延迟,数据吞吐量等同于SR-ARQ,但算法简单容易实现。SRPB ARQ更因为精密的设计使其能在多种无线信道中达到最大数据吞吐量,被应用到HiperLAN/2系统中。描述、分析和比较了以上差错控制方案的特征和性能。The ARQ is the most effective error control scheme for the high- specd wireless network. The typical SR- ARQ and GBN-ARQ do not suit the need of the high-speed wireless network. The improved ARQ scheme PRIMEARQ （partial selective repeat superimposed on gbn SRPB） and SRPB ARQ （selective repeat ARQ with partial bitmap） optimize the overhead and delay of the acknowledgement. It achieves high throughput almost equal to the SR-ARQ with the simple algorithm and easy realization. The sophisticated design of the SRPB ARQ makes it reach the maximal throughput in various radio channels.

关 键 词：GBN-ARQ SR-ARQ PRIME HIPERLAN/2 SRPB ARQ 无线局域网 

分 类 号：TN925.93[电子电信—通信与信息系统]