Performance comparison of the optimal and the zero-forcing beamforming algorithms under practical conditions
Hu, O. and Zheng, F.-C. (1999) Performance comparison of the optimal and the zero-forcing beamforming algorithms under practical conditions. In: ISSPA '99. Fifth International Symposium on Signal Processing and Its Applications, 1999., 22-25 August 1999, Brisbane, Australia, pp. 909-913.
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To link to this item DOI: 10.1109/ISSPA.1999.815819
The optimal and the zero-forcing beamformers are two commonly used algorithms in the subspace-based blind beamforming technology. The optimal beamformer is regarded as the algorithm with the best output SINR. The zero-forcing algorithm emphasizes the co-channel interference cancellation. This paper compares the performance of these two algorithms under some practical conditions: the effect of the finite data length and the existence of the angle estimation error. The investigation reveals that the zero-forcing algorithm can be more robust in the practical environment than the optimal algorithm.