摘要
本文在给出HFC接入网络MAC层协议所采用的预约Aloha随机访问机制的理论模型的基础上,首先对其时延、吞吐量,阻塞站数等静态特性进行了分析和讨论,并导出了系统竞争信道的吞吐量-负载以及平均延时-吞吐量,阻塞站数-吞吐量的表达式。然后在此基础上对系统MAC层协议的稳定性这一重要的动态特性进行了研究。
A theoretical model of reservation Aloha MAC random access mechanism for HFC access network is discussed. Based on this model, the static features such as throughput, delay, and blocked stations are analyzed, and the expressions for throughput-traffic, delay-throughput, blocked stations-throughput are derived. Then the dynamic stability of the system MAC protocol is studied in detail.
出处
《电路与系统学报》
CSCD
2003年第2期33-38,共6页
Journal of Circuits and Systems
基金
国家自然科学基金资助项目(60002003)
关键词
HFC
MAC
预约Aloha
微隙
竞争
稳定性
HFC
MAC
Reservation Aloha protocol
Mini-Slot
contention
Dynamic Stability
