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We present a novel cross-layer approach in minimizing energy consumption for multi-hop cooperative sensor networks, under the end-to-end reliability QoS requirement. Taking into consideration the power consumed in receiving and processing circuitry, we jointly determine the optimized routing, relay selection and power allocation strategies for direct transmission, single-relay cooperation and multi-relay...
This paper studies task allocation in cluster-based Wireless Sensor Network (WSN) using negotiation model. We study both the negotiation reasoning model and the negotiation protocol for task allocation to achieve energy efficiency while balancing nodes energy. Reasoning model determines the offer generate scheme and gives control over negotiation process. A time depending Boulware function is used...
Task allocation has been widely studied in high-performance computing environment. However, existing task allocation algorithms can not be directly applied to WSN because of the limited energy resources and computing capabilities of the Wireless Sensor Network (WSN). In this paper, we propose a new auction-based task allocation model for WSN and create an energy consumption based utility function...
In this paper, we analyze a real 802.11 wireless network frame traffic trace, collected from the ACM SIGCOMM 2004 Conference, by calculating its autocorrelation function and Hurst exponents at different time scales. We find this frame traffic trace has second-order self-similar characteristic. This in-depth knowledge of 802.11 wireless network frame traffic can effectively improve the efficiency and...
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