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Localized topology control for heterogeneous wireless sensor networks

Content Provider	ACM Digital Library
Author	Song, Wen-Zhan Wang, Yu Li, Xiang-Yang
Copyright Year	2006
Abstract	This article studies topology control in heterogeneous wireless sensor networks, where different wireless sensors may have different maximum transmission ranges and two nodes can communicate directly with each other if and only if they are within the maximum transmission range of each other. We present several localized topology control strategies in which every wireless sensor maintains logical communication links to only a selected small subset of its physical neighbors using information of sensors within its local neighborhood in a heterogeneous network environment. We prove that the global logical network topologies formed by these locally selected links are sparse and/or power efficient and our methods are communication efficient. Here a structure is power efficient if the total power consumption of the least cost path connecting any two nodes in it is no more than a small constant factor of that in the original heterogeneous communication network. By utilizing the wireless broadcast channel capability, and assuming that a message sent by a sensor node will be received by all sensors within its transmission region with at most a constant number of transmissions, we prove that all our methods use at most $\textit{O(n)}$ total messages, where each message has $\textit{O}(log$ $\textit{n})$ bits. We also conduct extensive simulations to study the practical performance of our methods.
Starting Page	129
Ending Page	153
Page Count	25
File Format	PDF
ISSN	15504859
e-ISSN	15504867
DOI	10.1145/1138127.1138132
Volume Number	2
Issue Number	1
Journal	ACM Transactions on Sensor Networks (TOSN)
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2006-02-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Graph theory Degree-bounded structure Heterogeneous networks Power consumption Topology control Wireless sensor networks
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

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