NDLI: Joint routing, scheduling and channel assignment in multi-power multi-radio wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Jinbao Li Xiaohang Guo Longjiang Guo
Copyright Year	2011
Description	Author affiliation: School of Computer Science and Technology, Heilongjiang University, Harbin, Heilongjiang 150080, China (Jinbao Li; Xiaohang Guo; Longjiang Guo)
Abstract	Power control is a complex issue in routing since the increase of transmission power supplies more opportunities to select optimal routes due to the fact that more links are available. However, conversely, it also implies higher interference and hence decreases the performance of routing. Since multi-radio multi-channel schemes can efficiently mitigate interferences through allowing more concurrent transmissions, therefore, it is worth to investigate the routing scheme in Multi-Power Multi-Radio (MPMR) wireless sensor networks (WSNs). In this paper, we study the joint routing, scheduling, channel assignment and power control problem in MPMR WSNs, which is proven a NP-Hard problem. We first formulate the optimal routing problem as a linear programming problem. Subsequently, we develop a distributed routing protocol based on the random walk method which can efficiently decrease the computational complexity in large-scale WSNs by avoiding solving the linear programming problem. Theoretical analysis and simulations show that the routing based on MPMR can improve the data transmission efficiency and the proposed cross-layer routing scheme significantly reduces the energy consumption and the end-to-end transmission delay.
Starting Page	1
Ending Page	8
File Size	554796
Page Count	8
File Format	PDF
ISBN	9781467300100
ISSN	10972641
e-ISBN	9781467300124
DOI	10.1109/PCCC.2011.6108087
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Routing Complexity theory Equations Wireless sensor networks Interference Energy consumption Joints
Content Type	Text
Resource Type	Article

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