Title :
An MMSE-DBF Interference Suppression Reception Scheme for MIMO-OSTBCs System
Author :
Wang, Jie ; Zhang, Zhonghao ; Gong, Yuehuan ; Wang, Xun
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
In this paper, an interference suppression reception scheme for multiple input multiple output (MIMO) system using orthogonal space-time block codes (OSTBCs) in strong interference scenario is presented. Based on digital beamforming (DBF), the scheme is valid to suppress strong interferences without performing channel estimation. The SER performance of the proposed scheme is close to that of maximum likelihood decoding (MLD) scheme although with a little SER performance loss. But the proposed scheme has much lower complexity. It is more practical in applications. Simulation results are given to verify the interference suppression ability and advantages of the proposed scheme.
Keywords :
MIMO communication; array signal processing; block codes; interference suppression; least mean squares methods; orthogonal codes; space-time codes; MIMO-OSTBC system; MMSE-DBF interference suppression reception scheme; SER performance; digital beamforming; maximum likelihood decoding scheme; multiple input multiple output system; orthogonal space-time block codes; Block codes; Channel estimation; Channel state information; Interference suppression; MIMO; Maximum likelihood decoding; Performance loss; Rayleigh channels; Receiving antennas; Space technology;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.102
