Title :
Spatial Multiplexing System with Orthogonal Data Streams
Author :
Tasneem, IKhawaja Tauseef ; Khan, Adnan Ahmed ; Bashir, Sajid ; Shah, Syed Ismail
Author_Institution :
Iqra Univ., Islamabad
Abstract :
A new orthogonal coded multi-input- multi-output (MIMO) system using Walsh codes is presented in this paper. The proposed spatial multiplexing system offers equivalent bit error rate (BER) performance as compared to the conventional uncoded MIMO system while increasing data transmission rate by two folds. The optimum maximum likelihood (ML) detector is used in the proposed system. As ML detector offers high computational complexity, therefore we also present the linear zero forcing (ZF) and minimum mean square error (MMSE) detectors. A performance comparison between the proposed and conventional MIMO system is also discussed.
Keywords :
MIMO communication; computational complexity; error statistics; least mean squares methods; maximum likelihood detection; multiplexing; orthogonal codes; BER; MMSE; Walsh code; computational complexity; equivalent bit error rate; linear zero forcing detector; maximum likelihood detector; minimum mean square error detector; multi input-multi output system; orthogonal coded MIMO system; orthogonal data stream; spatial multiplexing system; Antennas and propagation; Bit error rate; Computational complexity; Detectors; MIMO; Maximum likelihood decoding; Maximum likelihood detection; OFDM; Transmitters; Transmitting antennas; ML detection; Multi-Input Multi-Output systems (MIMO); Walsh;
Conference_Titel :
Emerging Technologies, 2007. ICET 2007. International Conference on
Conference_Location :
Islamabad
Print_ISBN :
978-1-4244-1493-2
Electronic_ISBN :
978-1-4244-1494-9
DOI :
10.1109/ICET.2007.4516320
