802.11 DCF协议引入信道预约机制的必要性分析  

Analysis on the Necessity for 802.11 DCF Protocol in Channel Reservation Mechanism

作　　者：黎琴 蔡保国[2] 

机构地区：[1]常州国光数据通信有限公司,常州213023 [2]武汉船舶通信研究所,武汉430079

出　　处：《计算机与数字工程》2014年第8期1349-1351,1398,共4页Computer & Digital Engineering

摘　　要：论文对802.11DCF协议引入信道预约机制的必要性问题进行了探讨。通过分析信道预约机制与隐藏/暴露终端问题之间的关系,提出一种比较隐藏终端和暴露终端出现概率大小的等效方法,并给出了相应的数值估算结果。理论分析结果验证了802.11DCF协议引入信道预约机制的有效性。The of necessity for 802.11 DCF protocol to be introduced channel reservation mechanism is argued in this paper.By analyzing the relation between channel reservation mechanism and hidden/exposed terminal problem,an equivalent method to compare occurrence probabilities of hidden terminal and exposed terminal is proposed and the relevant numerical estimation results are given out.The theoretical analysis results prove the validity for 802.11 DCF protocol to introduce channel reservation mechanism.

关 键 词：802 11DCF协议 信道预约机制 隐藏 暴露终端 出现概率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]