In wireless sensor networks, sink mobility support is one of the essential functionalities in many applications. With continuous advancement, future applications will require not only sink mobility support but also high-performance data delivery service. Multipath routing is one of the promising technologies for improving data delivery performance by collaboratively using alternative or redundant multiple routing paths. However, existing multipath routing protocols had not dealt with sink mobility. As a result, they lead to bad performance in terms of energy efficiency due to the end-to-end path reconstruction. Consequently, a novel multipath management scheme is required thereby supporting sink mobility without performance degradation. In this paper, we propose a multipath management scheme for supporting sink mobility. The proposed scheme dynamically constructs multipath along the moving path of a sink. In addition, the proposed scheme provides the path shortening schemes according to the sink’s movement for reducing energy consumption. Our simulation results show that the proposed scheme is superior to existing path management schemes in terms of reliability and energy efficiency.

中文翻译：

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基于代理的多路径管理，用于支持无线传感器网络中的接收器移动性

在无线传感器网络中，宿移动性支持是许多应用程序中的基本功能之一。随着不断的进步，未来的应用将不仅需要宿移动性支持，而且还需要高性能的数据传递服务。多路径路由是通过协作使用备用或冗余的多路由路径来提高数据传递性能的有前途的技术之一。但是，现有的多路径路由协议尚未处理宿移动性。结果，由于端到端路径重构，它们导致在能量效率方面的不良性能。因此，需要一种新颖的多路径管理方案，从而在不降低性能的情况下支持宿移动性。在本文中，我们提出了一种用于支持宿移动性的多路径管理方案。所提出的方案沿着宿的移动路径动态地构造多径。另外，提出的方案根据水槽的运动提供了路径缩短方案，以减少能耗。仿真结果表明，该方案在可靠性和能效方面均优于现有的路径管理方案。