exploiting constructive interference for scalable flooding in wireless networks

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	exploiting constructive interference for scalable flooding in wireless networks
	Wang Yin ; He Yuan ; Mao Xufei ; Liu Yunhao ; Huang Zhiyu ; Li Xiangyang
	2012
会议名称	IEEE Conference on Computer Communications, INFOCOM 2012
会议日期	March 25, 2012 - March 30, 2012
会议地点	Orlando, FL, United states
关键词	Topology Wireless networks
页码	2104-2112
中文摘要	Exploiting constructive interference in wireless networks is an emerging trend for it allows multiple senders transmit an identical packet simultaneously. Constructive interference based flooding can realize millisecond network flooding latency and sub-microsecond time synchronization accuracy, require no network state information and adapt to topology changes. However, constructive interference has a precondition to function, namely, the maximum temporal displacement Δ of concurrent packet transmissions should be less than a given hardware constrained threshold. We disclose that constructive interference based flooding suffers the scalability problem. The packet reception performances of intermediate nodes degrade significantly as the density or the size of the network increases. We theoretically show that constructive interference based flooding has a packet reception ratio (PRR) lower bound (95:4%) in the grid topology. For a general topology, we propose the spine constructive interference based flooding (SCIF) protocol. With little overhead, SCIF floods the entire network much more reliably than Glossy [1] in high density or large-scale networks. Extensive simulations illustrate that the PRR of SCIF keeps stable above 96% as the network size grows from 400 to 4000 while the PRR of Glossy is only 26% when the size of the network is 4000. We also propose to use waveform analysis to explain the root cause of constructive interference, which is mainly examined in simulations and experiments. We further derive the closed-form PRR formula and define interference gain factor (IGF) to quantitatively measure constructive interference. © 2012 IEEE.
英文摘要	Exploiting constructive interference in wireless networks is an emerging trend for it allows multiple senders transmit an identical packet simultaneously. Constructive interference based flooding can realize millisecond network flooding latency and sub-microsecond time synchronization accuracy, require no network state information and adapt to topology changes. However, constructive interference has a precondition to function, namely, the maximum temporal displacement Δ of concurrent packet transmissions should be less than a given hardware constrained threshold. We disclose that constructive interference based flooding suffers the scalability problem. The packet reception performances of intermediate nodes degrade significantly as the density or the size of the network increases. We theoretically show that constructive interference based flooding has a packet reception ratio (PRR) lower bound (95:4%) in the grid topology. For a general topology, we propose the spine constructive interference based flooding (SCIF) protocol. With little overhead, SCIF floods the entire network much more reliably than Glossy [1] in high density or large-scale networks. Extensive simulations illustrate that the PRR of SCIF keeps stable above 96% as the network size grows from 400 to 4000 while the PRR of Glossy is only 26% when the size of the network is 4000. We also propose to use waveform analysis to explain the root cause of constructive interference, which is mainly examined in simulations and experiments. We further derive the closed-form PRR formula and define interference gain factor (IGF) to quantitatively measure constructive interference. © 2012 IEEE.
收录类别	EI
会议录	Proceedings - IEEE INFOCOM
语种	英语
ISSN号	0743-166X
ISBN号	9781467307758
内容类型	会议论文
源URL	[http://ir.iscas.ac.cn/handle/311060/15720]
专题	软件研究所_软件所图书馆_会议论文
推荐引用方式 GB/T 7714	Wang Yin,He Yuan,Mao Xufei,et al. exploiting constructive interference for scalable flooding in wireless networks[C]. 见:IEEE Conference on Computer Communications, INFOCOM 2012. Orlando, FL, United states. March 25, 2012 - March 30, 2012.