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In this paper, we focus on the issue of stability in multihop wireless networks under flow-level dynamics, and explore the inefficiency and instability of the celebrated Back-Pressure algorithms. It has been well-known that the Back-Pressure (or MaxWeight) algorithms achieve queue stability and throughput optimality in a wide variety of scenarios. Yet, these results all rely on the assumptions that...
The packet collision is one of the causes of wasted energy consumption in wireless sensor networks. This paper describes and analyzes the behavior of packet collisions in wireless sensor networks by simulations. The problems of packet collision include both direct and hidden collisions, and are classified by layers architecture: application, routing, and MAC. Moreover, we review and analyze the existing...
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