Research Article
Joint Optimization of System Lifetime and Network Performance for Real-Time Wireless Sensor Networks
@INPROCEEDINGS{10.1007/978-3-642-10625-5_20, author={Lei Rao and Xue Liu and Jian-Jia Chen and Wenyu Liu}, title={Joint Optimization of System Lifetime and Network Performance for Real-Time Wireless Sensor Networks}, proceedings={Quality of Service in Heterogeneous Networks. 6th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2009 and 3rd International Workshop on Advanced Architectures and Algorithms for Internet Delivery and Applications, AAA-IDEA 2009, Las Palmas, Gran Canaria, November 23-25, 2009 Proceedings}, proceedings_a={QSHINE}, year={2012}, month={10}, keywords={Real-Time Wireless Sensor Networks System Lifetime Network Performance}, doi={10.1007/978-3-642-10625-5_20} }- Lei Rao
Xue Liu
Jian-Jia Chen
Wenyu Liu
Year: 2012
Joint Optimization of System Lifetime and Network Performance for Real-Time Wireless Sensor Networks
QSHINE
Springer
DOI: 10.1007/978-3-642-10625-5_20
Abstract
Maximizing the aggregate network utility and minimizing the network energy consumption are important but conflict goals in wireless sensor networks. Challenges arise due to the application-specific computing and communication resources constraints and end-to-end real-time constraints. This paper studies the tradeoff between energy consumption and network performance in Real-Time Wireless Sensor Networks (RTWSN) by investigating the interaction between the network performance optimization and network lifetime maximization problems. We address the tradeoff between these two conflict goals as a joint non-linear optimization problem. Based the solution of the optimization problem, we design an online distributed algorithm to achieve judicious tradeoff based on application-specific focus, while at the same time meeting real-time and resource constraints. Extensive simulation studies illustrate the efficiency and efficacy of the proposed algorithm.