Publications (2)0 Total impact
Article: Transmission power control in wireless ad hoc networks: challenges, solutions and open issues.IEEE Network. 01/2004; 18:8-14.
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ABSTRACT: One major challenge in the design of mobile ad hoc networks (MANETs) is how to simultaneously provide high network throughput and low energy communications between mobile nodes. Transmission power control (TPC) has a great potential to achieve this goal. In this paper, we investigate the issue of TPC in MANETs and examine various TPC approaches proposed in the literature. We give insight into the efficiency of such approaches and their ability to attain their design objectives. We discuss the factors that influence the selection of the transmission power, including the important interaction between the routing (network) and the medium access control (MAC) layers. Protocols that account for such interaction are presented. We argue that using the minimum transmission power does not deliver the maximum throughput in MANETs. The impact of mobility on the design of power controlled MAC protocols is also addressed. Various complementary approaches and optimizations are highlighted and discussed, including the use of rate control, directional antennas, spread spectrum technology, and power saving modes. Finally, we outline several directions for future research in this area.