Transmit-power estimation is an important part in power-aware designs of Mobile Ad-hoc Networks (MANETs). In this paper, we consider the cooperation among multiple monitor-nodes to estimate the transmit power of other nodes. Utilizing a geometric approach, we characterize the theoretical performance of such cooperative monitoring schemes and propose transmit-power estimation schemes with different number of cooperating nodes. We introduce the novel concept of confidence region, which is a region that provides a fundamental confidence level for the accuracy of the power estimation and enables the development of techniques for allocating network monitors. Finally, we present a simple cooperative estimation scheme for a large-scale wireless network and give illustrative simulation results to quantify its performance.
By: Ivan W. H. Ho, Bong Jun Ko, Murtaza Zafer, Chatschik Bisdikian, Kin K. Leung
Published in: RC24353 in 2007
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