Providing Reliable Data Transport for Dynamic Event Sensing in Wireless Sensor Networks

Authors

Yuyan Xue, University of Nebraska-LincolnFollow
Byrav Ramamurthy, University of Nebraska-LincolnFollow
Yong Wang, University of Nebraska-LincolnFollow

Date of this Version

2008

Comments

Published in ICC '08. IEEE International Conference on Communications, 2008. Copyright 2008 IEEE. Used by permission.

Abstract

In this paper, we propose a Loss Tolerant Reliable (LTR) data transport mechanism for dynamic Event Sensing (LTRES) in WSNs. In LTRES, a reliable event sensing requirement at the transport layer is dynamically determined by the sink. A distributed source rate adaptation mechanism is designed, incorporating a loss rate based lightweight congestion control mechanism, to regulate the data traffic injected into the network so that the reliability requirement can be satisfied. An equation based fair rate control algorithm is used to improve the fairness among the LTRES flows sharing the congestion path. The performance evaluations show that LTRES can provide LTR data transport service for multiple events with short convergence time, low lost rate and high overall bandwidth utilization.