Near optimal beamforming design for efficient multi-user distributed communications

For efficient multi-user distributed communications, near optimal beamforming techniques for multiple-input single-output interference channel with correlated block fading are proposed in this paper. Main idea is to find nearly optimal beamforming vectors a he present coding block based on optimal ones a the previous coding block. Under single-user decoding and Gaussian input constraint a each receiver, without exhaustive search among all possible beamforming vectors, the proposed beamforming schemes make systematic and immediate beamforming design possible with he performance close to the optimum.