ADMM for Joint Data and Off-Grid NBI Recovery in OFDM Systems
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Institute of Electrical and Electronics Engineers Inc.
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Abstract
Joint data and off-grid narrow-band interference (NBI) recovery is investigated in orthogonal-frequency-division-multiplexing (OFDM) systems using compressive-sensing (CS) framework. The joint recovery problem is formulated as a convex optimization problem of three weighted norms. A reduced computational complexity and scalable algorithm is proposed to solve the recovery problem based on the alternating-direction-method-of-multipliers (ADMM). Simulation results, show that the average-run-time of solving the joint recovery problem using the proposed ADMM algorithm is much less than the average-run-time of the interior point method.
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Keywords
Compressed sensing (Telecommunication), Computational complexity, Programming (Mathematics), Orthogonal frequency division multiplexing, Wireless communication systems, Interior-point methods, Radio frequency modulation, Narrow-band
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©2018 IEEE