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In this paper we propose an adaptive random walk for wireless networks. The lifetime of the walk is varied in such a way that at least a given fraction of nodes is covered, in expectation. The only parameter of the random walk, alpha, depends on the nominal network size N and on the required coverage. For sizes lower than N the required coverage is satisfied with lifetime slightly higher than the...
An in-depth review of service discovery protocols (SDPs) in multihop mobile ad hoc networks analyzes SDP building blocks and determines SDP suitability based on architecture, mobility, and network size. Mobile ad hoc networks (manets) include a variety of devices, such as cell phones, PDAs, laptops, and other relatively larger devices. These devices can move at high or low speeds or even remain stationary,...
Random walk (RW) based search algorithms are often suggested to solve a search problem, namely the need to locate a node with a given property in a network, e.g., a node providing a service. In order for this solution to be efficient, the number of steps the walker makes before hitting the target node should be low. This can be achieved exploiting some form of bias, which forces the walker to always...
This paper is about energy efficient and robust implementation of random walks in mobile wireless networks. While random walk based algorithm are often proposed to solve many problems in wireless networks, their implementation is usually done at the application layer so that many characteristics of the wireless transmissions are not exploited. In this paper we show that we can greatly reduce the energy...
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