Low-Cost Perturbation-Based ICI Equalizers for OFDMA Mobile Systems

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概要

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• For advanced mobile communication systems that adopt orthogonal frequency-division multiple access (OFDMA) technologies, intercarrier interference (ICI) significantly degrades performance when mobility is high. Standard specifications and concerns about complexity demand low-cost methods with deployment readiness and decent performance. In this paper, novel zero forcing (ZF) and minimum mean-square error (MMSE) equalizers based on per-subcarrier adaptive (PSA) processing and perturbation-based (PB) approximation are introduced. The proposed equalizers strike a good balance between implementation cost and performance; therefore they are especially suitable for OFDMA downlink receivers. Theoretical analysis and simulations are provided to verify our claims.

著者

• LIN Hsin-De

  Department of Electronics Engineering, National Chiao-Tung University

• SANG Tzu-Hsien

  Department of Electronics Engineering, National Chiao-Tung University

• CHEN Jiunn-Tsair

  Mobile Device Corporation

関連論文

• Low-Cost Perturbation-Based ICI Equalizers for OFDMA Mobile Systems

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