Information technology - telecommunications and information exchange between systems - interface connector and contact assignments for isdn basic access interface located at reference points s and t 信息技术系统间远程通信和信息交换在s和t参考点上定位的isdn基本接入接口用的接口连接器和接触件分配
On considering the influence of parameters such as rtsjthreshold , packet error rate , i analyze the performance of csma / ca in basic access scheme as well as rts / cts scheme . by successfully simulated the functions of 802 通过对站点接入概率的分析,本文系统的分析了csma ca基本接入机制和rts cts接入机制的性能,并考虑了rts _ threshold参数、信道误码率对性能的影响。
Aiming at the wireless optical channel and operation characteristics , carrier sense multiple access / collision avoidance ( csma / ca ) mac protocol is put forward taking into account the bit error rate ( ber ) . this paper studies the protocol theory , access mechanism detailedly , and models the throughput performance , simulates and analyzes the performance . the paper analyzes the performance influence factors such as ber , transmit probability , number of the terminals , initial windows , retry limit and so on ( 2 )针对无线光局域网的信道特性及业务特征,在考虑信道误码率影响的基础上,分析了基于载波监听/冲突避免( carriersensemultipleaccess / collisionavoidance , csma / ca )接入的无线光局域网mac协议,详细阐述了协议原理和接入机制,用马尔可夫模型对mac吞吐量性能进行了建模,并进行仿真计算和分析,详细讨论了在基本接入机制和rts / cts接入机制下,信道误码率、终端发送概率、终端数、初始化窗口、重传极限等参数对吞吐量性能的影响,同时对两种接入机制性能进行了比较分析。