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 tow...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.展开更多
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)
文摘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.
