无线传感网中基于复杂网络的可变虚拟栅格覆盖算法
首发时间:2016-09-26
摘要:覆盖问题是无线传感网研究中的一个基本问题,它是衡量通信网络服务质量的关键因素。栅格覆盖作为其中一种典型的覆盖策略,它通常是将感知区域划分成多个大小固定的小栅格以实现有效的区域覆盖。然而,现有的栅格覆盖算法没有同时考虑网络的能量效率和鲁棒性。本文首次提出一种可变虚拟栅格覆盖算法,通过引入复杂网络模型来提高网络的能效和鲁棒性。理论分析和仿真结果都表明,该算法相较于其他覆盖算法性能优越,尤其是能够反映上层感知需求、保证较高的能量效率和系统鲁棒性。
关键词: 通信与信息系统 无线传感网 栅格覆盖 复杂网络 能量效率 鲁棒性
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Variable Virtual Grid Coverage Algorithm Based On Complex Network in WSNs
Abstract:Coverage is a fundamental design issue in wireless sensor networks (WSNs) and it is usually used to determine the quality of service (QoS) of WSN. Grid coverage, as one of typical coverage strategies, generally partitions the region of interest (ROI) into many size-fixed grids to implement effective area coverage. However, few algorithms improve energy efficiency and robustness at the same time in grid coverage research. In this paper, we first propose a variable virtual grid coverage algorithm (VVGCA), which introduces complex network model to improve energy efficiency and robustness at the same time. Both analysis and simulations demonstrate the VVGCA has better performance than two previous algorithms in the aspect of reflecting the upper layer requirements, guaranteeing energy-efficient coverage and achieving high robustness against random node failures.
Keywords: Communication and Information System WSNs Grid Coverage Complex Network Energy Efficiency Robustness
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No.4705249113903914****
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