摘要
提出一种针对选择自动重传(SR-ARQ)技术结合自适应调制系统(AMS)的跨层分析和设计方法.该方法采用有限状态马尔可夫链(FSMC),同时对物理层和链路层进行建模,然后用更新报酬(renewal-reward)理论对系统的有效吞吐量进行精确分析,并根据分析结果设计系统中所使用的参数.计算机仿真结果验证了该跨层分析方法的精确性,并可以从中看出本方法对系统参数选取的指导意义.
A cross-layer analysis and design algorithm of selective repeat ARQ （SR-ARQ） combined with adaptive modulation systems （AMS） is presented. Considering the parameters of both AMS and ARQ, this algorithm constructs the model of the system using finite states Markov chain （FSMC）, and then derives the accurate throughput on the basis of renewal-reward theorem. This result is a good reference in designing of such practical communication systems. The results of the computer simulation validate the accurateness of the proposed cross-layer analysis algorithm, and show how to choose the appropriate parameter based on the analysis results.
出处
《小型微型计算机系统》
CSCD
北大核心
2009年第4期632-636,共5页
Journal of Chinese Computer Systems
基金
国家自然科学基金重大项目(60496314)资助
