NDLI: WRGP: Weight-Aware Route Guiding Protocol for Wireless Sensor Networks with Obstacles

Content Provider	IEEE Xplore Digital Library
Author	Chih-Yung Chang Wei-Cheng Ju Chao-Tsun Chang Yu-Chieh Chen
Copyright Year	2008
Description	Author affiliation: Tamkang Univ., Tamsui (Chih-Yung Chang; Wei-Cheng Ju)
Abstract	The greedy forwarding routing protocol has been widely used for constructing a route with low control overheads in wireless sensor networks. However, its performance drops significantly when obstacles exist. This paper proposes a novel mechanism, named WRGP, which removes the impact of obstacles on the greedy forwarding routing. The proposed WRGP initially applies the previous research to specify the border nodes that surround the obstacle. Then the border nodes in the concave region of the obstacle initiate the weight assigning process and establish a forbidden region to prevent the packets from entering the concave region. Finally WRGP specifies some border nodes to act as the effective border nodes for constructing the optimal routes from themselves to the sink node. Comparing with the existing obstacles-resisting protocols, the proposed WRGP avoids the ping-pong effect and guides the packets moving along the shortest path from the encountered effective border node to the sink node. In addition, the M-WRGP is further developed to cope with the multi-obstacle problem. Simulation results show that both WRGP and M-WRGP outperform the existing protocol PAGER in terms of control overheads and average route length.
Starting Page	3302
Ending Page	3306
File Size	318463
Page Count	5
File Format	PDF
ISBN	9781424420759
DOI	10.1109/ICC.2008.621
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless application protocol Wireless sensor networks Routing protocols Peer to peer computing Communications Society Chaotic communication Timing Interference
Content Type	Text
Resource Type	Article

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