標題: Joint AoA and Channel Estimation for Pulse-shpaed SIMO-OFDM systems
作者: Horng, Cian-Ya
Wu, Wen-Rong
Huang, Din-Hwa
電信工程研究所
Institute of Communications Engineering
關鍵字: orthogonal frequency-division multiplexing (OEDM);pulse-shaping;compressive sensing (CS);block sparse Bayesian. learning (BSBL);angle-of-arrival (4oA);channel estimation
公開日期: 1-Jan-2018
摘要: Beamforming has been considered a crucial technique in 5G era. To perform received beamforming, one must know the information of angle-of-arrival (AoA). This paper considers AoA estimation in single-input-multiple-output (SIMO) pilot-assisted OFDM systems. Exploiting the sparsity of the wireless channel, we can first efficiently estimate channel impulse response with a compressive-sensing based technique. However, existing works often do not take the pulse-shaping effect into account, resulting in poor performance in real-world systems. We propose a basis adaptive block sparse Bayesian learning framework to solve the problem. Once the CIRs corresponding to received antennas are obtained, AuAs can then be estimated accordingly.
URI: http://hdl.handle.net/11536/151064
ISSN: 1546-1874
期刊: 2018 IEEE 23RD INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING (DSP)
Appears in Collections:Conferences Paper