Eigen-Inference for Multi-Source Power Estimation

At a time when radio resources become scarce, the alternative offered by flexible radios is gaining more and more interest. This paper introduces a new method to estimate the power transmitted by multiple signal sources, when the number of sensing devices and the available samples are sufficiently large compared to the number of sources. This paper makes use of recent advances in the field of random matrix theory that prove more efficient than previous "Moment-based" approaches to the problem of multi-source power detection. Simulations are performed which corroborate the theoretical claims.

Provided by: North Carolina State University Topic: Networking Date Added: Jan 2011 Format: PDF

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