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Method and apparatus of adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes based on symbol error rate in distributed wireless communication system

  • US 7,904,106 B2
  • Filed: 10/12/2007
  • Issued: 03/08/2011
  • Est. Priority Date: 11/22/2006
  • Status: Active Grant
First Claim
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1. An apparatus for adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes (OSTBC) in a distributed wireless communication system, the apparatus comprising:

  • a plurality of geographically distributed sub-arrays for beamforming, each sub-array of said plurality comprising a plurality of distributed antennas placed in random groups;

    and a central processing unit foridentification of a performance of each subset of the sub-arrays by applying a predetermined power allocation scheme thereto, each said subset being obtained by combining the sub-arrays using a Nakagami fading parameter and information about large-scale fading of each sub-array of the sub-arrays fed back from a receiving party,determination of a subset having a best identified performance as an optimal subset according to the identified performances thereof, andperformance of power allocation based on the subset determined as the optimal subset,wherein the each subset is a random combination of the plurality of sub-arrays.

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