MISO-OFDM System With Subband Beamforming
Journal
2016 IEEE 5th International Conference on Communications China (ICCC)
Pages
1-6
Date Issued
2016-07
Author(s)
Abstract
Transmit beamforming is effective in the performance enhancement of multiple-input single-output orthogonal frequency-division multiplexing (MISO-OFDM) systems. However, the optimal subcarrier-wise beamforming scheme requires a considerable amount of subcarrier information fedback from the receiver over nonreciprocal channels. In this paper, a new subband beamforming scheme is proposed for MISO-OFDM systems to provide the average channel capacity performance comparable to subcarrier-wise beamforming scheme and outperform remarkably conventional interpolation beamforming scheme using the same subband grouping, while requiring much less amount of feedback overhead and computation complexity for computing beamforming coefficients.
SDGs
Type
conference paper