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