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In this paper, we propose a cross-layer design to make ambulatory health monitoring via body area networks (BAN) more reliable and robust. The proposed design builds on our centralized body area network access scheme (CBAS), a receiver-initiated medium access control (MAC) scheme that improves the visibility of a BAN in a coexistent environment, where diverse networks with various physical and MAC...
In this work we analytically calculate the gain, in terms of packet delay, obtained by the use of network coding in linear multi-hop wireless sensor network topologies. Moreover we calculate the exact packet delay (from the packet generation time to the time it is delivered to the sink nodes) as a function of the location of the source sensor node within the linear network. We demonstrate that network...
In this paper, we investigate the use of cooperative communications for reliable data dissemination in wireless sensor networks. We first identify the disadvantages of some existing cooperative schemes. While the previously proposed ldquomulti-hop mesh cooperative transmission structurerdquo addresses these disadvantages, it suffers from large end-to-end delays during data disseminations due to its...
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