Recently, the attentions of communication societies are paid to MIMO-OFDM systems. In this paper we propose a new beamforming method to the receive end of MIMO-OFDM systems. To make the method work with fewer known OFDM symbols, oversampling samples are employed and multistage decomposition based on orthogonality of sub-carriers of OFDM signal is used to formulate the beamforming weight vector for each sub-carrier according to least square criterion. Simulation results demonstrate that the proposed method is effective in the equalization of space-time sub-channels and the suppression of cochannel interference signals at each sub-carrier.


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    Title :

    A New Beamforming Method for MIMO-OFDM Systems


    Contributors:
    Ya, Li (author) / Zhang, Lina (author) / Zhang, Erlei (author)


    Publication date :

    2008-05-01


    Size :

    309244 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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