Title :
Energy efficient cooperative communication for sensor networks: A cross-layer approach
Author :
Chen, Yongrui ; Yi, Weidong ; Yang, Yang
Author_Institution :
Inf. Sci. & Eng. Inst., Grad. Univ. of Chinese Acad. of Sci.(GUCAS), Beijing, China
Abstract :
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 cooperation scenarios. We demonstrate through analysis and simulations that an energy efficiency trade-off exists for cooperation, and the tradeoff depends on several parameters such as the average inter-node distance, the required QoS, the number of relays, the receiving power and so on. Results also show the proposed cross-layer strategy achieves significant energy savings compared to other recently proposed algorithms.
Keywords :
cooperative communication; quality of service; telecommunication network reliability; telecommunication network routing; wireless sensor networks; average internode distance; cross-layer strategy; direct transmission; end-to-end reliability QoS requirement; energy consumption minimization; energy efficient cooperative communication; energy savings; multihop cooperative sensor networks; multirelay cooperation; optimized routing; power allocation strategies; relay selection; single-relay cooperation; wireless sensor networks; Optimization; Quality of service; Receivers; Relays; Resource management; Routing; Signal to noise ratio;
Conference_Titel :
Consumer Communications and Networking Conference (CCNC), 2011 IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-8789-9
DOI :
10.1109/CCNC.2011.5766600