© 2015 IEEE. Zero-forcing beamforming (ZFBF) is a popular pre-coding scheme for MIMO systems. Most of the studies in the literature are under total power constraints. However, the perantenna power constraints (PAPC) are more realistic. The state-of-the-art method is interior point method which is expensive to realize in practice due to the high computational complexity. Hence, a low complexity zero-forcing precoding scheme under the per-antenna power constraints is proposed in this paper. This is achieved by introducing a regularized dual method. Simulations are carried out to show the effectiveness of the proposed method, which has a low computational complexity. In addition, the algorithm can be implemented in parallel to further reduce the computational complexity.
|Title of host publication||ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings|
|Publisher||IEEE, Institute of Electrical and Electronics Engineers|
|Publication status||Published - 2015|
|Event||A low complexity optimization algorithm for zero-forcing precoding under per-antenna power constraints - South Brisbane, QLD|
Duration: 1 Jan 2015 → …
|Conference||A low complexity optimization algorithm for zero-forcing precoding under per-antenna power constraints|
|Period||1/01/15 → …|