Title :
Comparative Analysis of Various Optimization Techniques with Coded MIMO-OFDM Transmission
Author :
Singh, Shivendra ; Raghuvanshi, S.
Author_Institution :
Dept. of Electron. & Commun. Eng, Technocrats Inst. of Technol., Bhopal, India
Abstract :
This paper deals with the comparison of various optimization techniques used for detection of spatially multiplexed transmitted symbols in multiple input multiple output orthogonal frequency division multiplexing (MIMO OFDM) system. It may be helpful in evaluating the performance of the detection techniques viz zero forcing (ZF), minimum mean square error (MMSE) and maximum likelihood (ML) on the basis of the bit error rate (BER) for a given signal to noise ratio (SNR). A 2×2 MIMO system is used for the performance evaluation in simulation. The receiver decodes the binary phase shift keying (BPSK) signal through low density parity check (LDPC) decoder. A simulation result shows that ML is having a better performance over ZF and MMSE.
Keywords :
MIMO communication; OFDM modulation; error statistics; least mean squares methods; parity check codes; BER; BPSK signal; LDPC; MMSE; binary phase shift keying; bit error rate; coded MIMO-OFDM transmission; comparative analysis; low density parity check decoder; maximum likelihood; minimum mean square error; multiple input multiple output; optimization techniques; orthogonal frequency division multiplexing; zero forcing; Communication systems; Computational intelligence; Multiple input multiple output (MIMO); low density parity check (LDPC); maximum likelihood (ML); minimum mean square error (MMSE); orthogonal frequency division multiplexing (OFDM); zero forcing (ZF);
Conference_Titel :
Computational Intelligence and Communication Networks (CICN), 2011 International Conference on
Conference_Location :
Gwalior
Print_ISBN :
978-1-4577-2033-8
DOI :
10.1109/CICN.2011.54
