西南交通大学学报2013，Vol.48Issue(4)：761-768,8.DOI:10.3969/j.issn.0258-2724.2013.04.026
基于捕获与退避的多信道时隙ALOHA协议性能分析
Performance Analysis of Multi-Channel Slotted ALOHA Protocol Based on Power Capture and Backoff
摘要
Abstract
To extend the theoretical analysis in multi-channel slotted ALOHA protocol based on power capture and backoff,some important performance measures including access success ratio,throughput and delay performance were analyzed.The protocol performance is dependent on channel load,power capture radio,the number of channels and the number of terminals.By the numerical simulation,the parameter influence on the system performance was analyzed.It is shown that smaller power capture radio lead to larger throughput,shorter delay and higher access success ratio; the larger number of channels also results in larger throughput,shorter delay and higher access success ratio.The impact of the number of terminals on throughput and access success ratio is small,and for smaller the number of terminals,delay is longer.The relative error between the theoretical results and the simulation ones was less than 2％.关键词
时隙ALOHA/多信道/功率捕获/退避算法Key words
slotted ALOHA / multi-channel / power capture / backoff algorithm分类
信息技术与安全科学引用本文复制引用
杨柳,范平志,郝莉..基于捕获与退避的多信道时隙ALOHA协议性能分析[J].西南交通大学学报,2013,48(4):761-768,8.基金项目
国家自然科学基金资助项目(61271245) （61271245）
国家973计划资助项目(2012CB316100) （2012CB316100）
教育部科学技术研究重大项目(311031) （311031）
中央高校基本科研业务费专项资金青年教师百人计划资助项目(SWJTU11BR008) （SWJTU11BR008）
