Title
Network Lifetime Maximization in Delay-Tolerant Sensor Networks with a Mobile Sink
Abstract
In this paper we investigate the network lifetime maximization problem in a delay-tolerant wireless sensor network with a mobile sink by exploiting a nontrivial tradeoff between the network lifetime and the data delivery delay. We formulate the problem as a joint optimization problem that consists of finding a trajectory for the mobile sink and designing an energy-efficient routing protocol to route sensing data to the sink, subject to the bounded delay on data delivery and the given potential sink location space. Due to NP-hardness of the problem, we then propose a novel optimization framework, which not only prolongs the network lifetime but also improves the other performance metrics including the network scalability, robustness, and the average delivery delay. We finally conduct extensive experiments by simulations to evaluate the performance of the proposed algorithm against other heuristics. The experimental results demonstrate that the proposed algorithm outperforms the others significantly in terms of network lifetime prolongation.
Year
DOI
Venue
2012
10.1109/DCOSS.2012.17
DCOSS
Keywords
Field
DocType
network lifetime maximization problem,potential sink location space,average delivery delay,sensor network,delay-tolerant sensor networks,proposed algorithm,network lifetime prolongation,joint optimization problem,mobile sink,network scalability,network lifetime,network lifetime maximization,optimization problem,mobile computer,mobile communication,wireless sensor networks,np hard problem,mobile computing,trajectory,set cover,computational complexity,routing protocols,energy conservation,routing algorithms,wireless sensor network,routing,vegetation,qos,load balance
Mobile computing,Computer science,Load balancing (computing),Computer network,Quality of service,Robustness (computer science),Real-time computing,Optimization problem,Wireless sensor network,Mobile telephony,Distributed computing,Routing protocol
Conference
Citations 
PageRank 
References 
23
1.01
15
Authors
3
Name
Order
Citations
PageRank
Zichuan Xu136827.39
Weifa Liang21676134.75
Yinlong Xu369372.13