E. I. Oyman and C. Ersoy, The Effect of Overhead Energy Considerations to the Network Lifetime in Wireless Sensor Networks,” Proceedings of the 13th IST Mobile and Wireless Communications, Lyon, France, June 27-30, 2004.
Abstract - Although the transmitter energy is one of the major factors of total energy dissipation in a sensor node, neglecting the overhead energy in energy aware routing decisions could result in suboptimal energy usage. Routing algorithms should be concerned about the overhead energy which is wasted at each hop of data transfer. When only the transmission energy is considered as the communication cost, using shorter multi hop links seems to be more advantageous. However, due to other energy consuming activities on the sensor nodes, such as reception of relayed messages, sensing and computation tasks, a considerable overhead energy might be dissipated while forwarding a message. Therefore, multi hopping becomes not always advantageous in wireless sensor networks. In this work, we investigate the use of multi hop communication links and compare the amount of energy gain acquired by correct routing energy calculations. We show that neglecting the overhead energy and overemphasizing the importance of power adjustable transmitter circuitry could result in considerable energy loss.
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