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首页> 外文期刊>Journal of network and computer applications >Lifespan prolonging location-wise predetermined deployment strategy for visual sensor networks
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Lifespan prolonging location-wise predetermined deployment strategy for visual sensor networks

机译：寿命延长视觉传感器网络的按位置预定部署策略

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摘要

Visual sensor networks are widely used for surveillance, environmental monitoring and tracking.. However, due to the funneling effect, visual sensor nodes (SNs) close to the sink tend to deplete their energy sooner than SNs farther away from the sink resulting in energy hole problem. This energy hole problem significantly increases the unbalanced energy usage among SNs and leads to premature decrease in network lifetime. Initially, we analyzed network lifetime and found number of relay nodes and their location has significant influence on limiting the energy hole problem and enhancement of network lifetime. Based on the principle of energy balancing, derived from this analysis, we develop a heterogeneous SNs deployment strategy leading to an enhancement of network lifetime. Exhaustive simulation is performed, primarily to measure the extent of achieving our design goal of limiting memory and computation overheads, enhancing network lifetime while attaining energy balancing. We also measure the effect of placement errors on the performance and show that even in presence of placement error the performance is comparable with the other competing scheme. Further, the simulation results show that our scheme does not compromise with other network performance metrics such as end-to-end delay and throughput while achieving the design goal. Finally, all the results are compared with a competing scheme and the results confirm our scheme's supremacy in terms of both design performance metrics as well as network performance metrics. (C) 2016 Elsevier Ltd. All rights reserved.
机译：视觉传感器网络广泛用于监视，环境监视和跟踪。但是，由于漏斗效应，靠近水槽的视觉传感器节点（SN）往往比远离水槽的SN更快耗尽能量，从而导致能量孔问题。这个能量漏洞问题极大地增加了SN之间的能量使用不平衡，并导致网络寿命过早减少。最初，我们分析了网络寿命，发现中继节点的数量及其位置对限制能量孔问题和延长网络寿命具有重大影响。基于此分析得出的能量平衡原理，我们开发了一种异构SN部署策略，从而延长了网络寿命。进行详尽的仿真，主要是为了衡量达到我们的设计目标的程度，即限制内存和计算的开销，在延长网络寿命的同时实现能量平衡。我们还测量了放置错误对性能的影响，并表明即使存在放置错误，其性能也可以与其他竞争方案媲美。此外，仿真结果表明，我们的方案在实现设计目标的同时，不与其他网络性能指标（如端到端延迟和吞吐量）相抵触。最后，将所有结果与竞争方案进行比较，这些结果在设计性能指标以及网络性能指标方面都证实了我们方案的优越性。 （C）2016 Elsevier Ltd.保留所有权利。

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