The performance research of Hybridtermbeamforming technology on 4G wireless communication system
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1. Department of Electrical and Electronic Engineering, Zhejiang Institute of Mechanical and Electrical Engineering, Hangzhou 310053, China; 2. Nokia Siemens Network Technology (Beijing) Co. LTD Zhejiang Branch, Hangzhou 310053, China

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TP301.6

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    Abstract:

    The paper firstly described hybridterm BF algorithm for common 4G wireless communication system. Hybrid beamforming is between longterm and shortterm, nearoptimal for Nrx=1. For hybrid algorithms of dual layer beamforming, each RB instantaneous channel could be expressed as similar to single layer case for each UE. An eigenvalue decomposition is applied to instantaneous or averaged channel correlation matrix. The beamformer transmits all available power along the channel’s strongest direction (implemented via the dominant eigenvector of correlation matrix). And then make a software designing implementation for hybridterm BF, too. It is involved in ULSRS combiner and DL PHY layer designing. Finally, the paper gives the detailed simulation for different performance index and gets some technical conclusion.

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  • Received:
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  • Online: April 20,2016
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