Robust power allocation for energy-efficient location-aware networks
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AbstractIn 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. © 2013 IEEE.
All Author(s) ListLi W.W.-L., Shen Y., Zhang Y.J., Win M.Z.
Journal nameIEEE/ACM Transactions on Networking
Year2013
Month12
Day1
Volume Number21
Issue Number6
PublisherInstitute of Electrical and Electronics Engineers
Place of PublicationUnited States
Pages1918 - 1930
ISSN1063-6692
eISSN1558-2566
LanguagesEnglish-United Kingdom
KeywordsLocalization, resource allocation, robust optimization, second-order conic programming (SOCP), semidefinite programming (SDP), wireless networks

Last updated on 2020-16-11 at 02:22