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This paper proposes a novel blind adaptive algorithm for computing the weight vector of an antenna array system. The new technique utilizes a phase update algorithm to obtain the weight vector maximizing the SINR (signal to interference plus noise ratio) of the received signal. It is observed that the proposed algorithm generates a suboptimal weight vector with a linear computational load(O(6N+8)). From the various simulations, it is confirmed that, when the signal environment becomes adverse, the proposed algorithm outperforms the conventional one in terms of the communication capacity by about 3 times. Applying the proposed algorithm to W-CDMA mobile communication system, we have found that both communication capacity and communication quality are significantly improved.
Date of Conference: June 30 2009-July 2 2009