Robust Power Allocation for Energy-Efficient Location-Aware Networks
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Win_Robust power.pdf
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372.69 KB
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Adobe PDF
Checksum (MD5)
e600f4370fede824f1d630525d46f6c2
Author(s)
Li, William Wei-Liang
Shen, Yuan
Zhang, Ying Jun
Win, Moe Z.
Date Issued
December 2013
Journal
IEEE/ACM Transactions on Networking
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Li, William Wei-Liang, Yuan Shen, Ying Jun Zhang, and Moe Z. Win. “Robust Power Allocation for Energy-Efficient Location-Aware Networks.” IEEE/ACM Transactions on Networking 21, no. 6 (December 2013): 1918–1930.
Version
Original manuscript
Abstract
In wireless location-aware networks, mobile nodes (agents) typically obtain their positions using the range measurements to the nodes with known positions. Transmit power allocation not only affects network lifetime and throughput, but also determines localization accuracy. In this paper, we present an optimization framework for robust power allocation in network localization with imperfect knowledge of network parameters. In particular, we formulate power allocation problems to minimize localization errors for a given power budget and show that such formulations can be solved via conic programming. Moreover, we design a distributed power allocation algorithm that allows parallel computation among agents. The simulation results show that the proposed schemes significantly outperform uniform power allocation, and the robust schemes outperform their non-robust counterparts when the network parameters are subject to uncertainty.
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Massachusetts Institute of Technology. Laboratory for Information and Decision Systems
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/TNET.2013.2276063
