双时二维概率多通道多业务随机多址协议分析  

Analysis of multi-channel and multi-service random multi-access protocol with double clocks and two-dimensional probability

作　　者：李春芬[1] 赵东风[1] 丁洪伟[1] 

机构地区：[1]云南大学通信工程系,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2009年第1期32-38,共7页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(60362001;F0424104);云南省自然科学基金资助项目(2003F0014M;2004F0011R)

摘　　要：提出了一种双时二维概率多通道多业务随机多址接入控制协议(MMDCTD),设计了时隙式接入和连续时间型接入相结合的控制时钟,采用二维概率选择,对多通道优先级业务控制的随机多址系统进行了研究.由于综合了时隙式接入控制和连续时间型接入控制的优点,使得二维概率多通道优先级业务控制的随机多址系统的性能得到了提高.通过建模分析,得到了双时二维概率多通道多业务随机多址接入控制协议的吞吐量解析结果.仿真实验结果表明理论分析和仿真实验相一致.同时,仿真实验还给出了二维概率时隙式和二维概率连续型随机多址系统的比较结果,说明双时控制系统的较优性能.A multi-channel and muhi-service random muhi-access protocol with double clocks and two dimensional probability was presented. The control clock was designed by combining slot access and consecutive time access together. The choice of the two parameters and was adopted to study the random system with multichannel and multi - service controlling. Due to the advantages of slot access combining with consecutive time access, the performance of multi - channel and multi - service random multi - access protocol with double clocks and two dimensional probability was improved. Furthermore, it analyzed the systemic throughput of MMDCTD protocol. The results show that the simulation is in concordance with the theoretical analysis. In other words, the comparing results with slotted -time and continuous -time CSMA system show the mixed system is better.

关 键 词：随机多址系统 二维概率型CSMA 多通道 双时 AD hoe网络 

分 类 号：TN914.5[电子电信—通信与信息系统]