Probabilistic Loss Differentiation for IEEE 802.11 Wireless Networks  

发送端自感知的概率粒度的数据包丢失原因甄别机制(英文)

作　　者：宋翊麟 孙毅 李忠诚 

机构地区：[1]Institute of Computing Technology,Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences

出　　处：《China Communications》2011年第1期156-163,共8页中国通信（英文版）

基　　金：supported by the National Basic Research Program of China(No.2011CB302702);the Beijing Nova Program and the National Natural Science Foundation of China(Nos.60803140,60970133,61070187)

摘　　要：We start this paper by answering the questions： What requirements should a good Loss Differentiation Mechanism （LD） for 802.11 networks in loT meet？ Do the existing LDs work well in 802.11 networks when moving towards loT？ Then we present the four properties that a LD used in loT should own and the two-folded factors that we should consider when designing such a LD. Thereby, a novel LD is proposed utilizing the back- off frozen event to reveal collision probability. Our mechanism works efficiently with standard 802.11 ; only practical statistics information is needed. In ad- dition, our mechanism can be done solely by the sender without introducing extra signaling overhead. Extensive simulations show that our mechanism can be applicable to different scenarios in 802. 11 WLANs.We start this paper by answering the questions:What requirements should a good Loss Differentiation Mechanism (LD) for 802.11 networks in IoT meet? Do the existing LDs work well in 802.11 networks when moving towards IoT? Then we present the four properties that a LD used in IoT should own and the two-folded factors that we should consider when designing such a LD.Thereby,a novel LD is proposed utilizing the backoff frozen event to reveal collision probability.Our mechanism works efficiently with standard 802.11;only practical statistics information is needed.In addition,our mechanism can be done solely by the sender without introducing extra signaling overhead.Extensive simulations show that our mechanism can be applicable to different scenarios in 802.11 WLANs.

关 键 词：IOT IEEE 802.11 WLANs LD 

分 类 号：TP391.44[自动化与计算机技术—计算机应用技术] TN929.5[自动化与计算机技术—计算机科学与技术]