Network Lifetime Maximization in Delay-Tolerant Sensor Networks with a Mobile Sink

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 o...

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Vydáno v:2012 IEEE 8th International Conference on Distributed Computing in Sensor Systems s. 9 - 16
Hlavní autoři: Zichuan Xu, Weifa Liang, Yinlong Xu
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.05.2012
Témata:
Delay
energy conservation
Energy consumption
joint optimization
load-balanced forest
Mobile communication
Mobile computing
network lifetime prolongation
QoS
Routing
routing algorithms
set cover
Trajectory
Vegetation
ISBN:1467316938, 9781467316934
ISSN:2325-2936
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Shrnutí: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.
ISBN:1467316938
9781467316934
ISSN:2325-2936
DOI:10.1109/DCOSS.2012.17