Joint Sink Mobility and Data Diffusion for Lifetime Optimization in Wireless Sensor Networks
Joint Sink Mobility and Data Diffusion for Lifetime Optimization in Wireless Sensor Networks
复制标题
用于无线传感器网络寿命优化的联合接收器移动性和数据扩散
DOI:
10.1109/apscc.2007.20
复制
发表时间:
2007
期刊:
影响因子:
--
通讯作者:
Bao
中科院分区:
文献类型:
--
作者:
Yu Gu;Hengchang Liu;Fei Song;Bao
In this paper, we address the problem of lifetime optimization under storage constraint for wireless sensor networks with a mobile sink node. The problem is particularly challenging since we need to consider both mobility scheme and storage constraint. Previous works suggest to use a simple single-hop routing model in which source nodes can only communication with the sink node directly in those mobile networks. However, we notice that this statement is unsuitable for sensor networks with storage constraint because we prove it is a NP-complete problem under single-hop routing model by reducing the traveling salesman problem (TSP) to it in polynomial time. Hence, we try a different way. First we analyze this problem and give a lifetime upperbound, so whether this upperbound is tight is what we concern mostly. Thus, we first construct a 2-approximation O(n2) algorithm to solve the TSP problem, then a novel data diffusion mechanism is built to achieve this upperbound. We prove that under some reasonable assumptions, our algorithm can output this optimal lifetime.
影响因子:
2.5
作者:
Arora, S
通讯作者:
Arora, S
DOI:
--
发表时间:
2005
期刊:
IEICE TRANS.INF.&SYST. VOL.E88-D, No.5
影响因子:
--
作者:
Sineenard PINYAPONG;Toshikazu KATO
通讯作者:
Toshikazu KATO