Title :
Performance analysis of SC MIMO-CDMA system using STBC codes
Author :
Jyostna, K. ; Fadhil, Firas ; Gouri, N. Mangala ; Bhandari, B.N.
Author_Institution :
Dept. of Electron. & Commun. Eng., VNR Vignana Jyothi Inst. of Eng. & Technol., Hyderabad, India
Abstract :
MIMO CDMA system with the calibration of OFDM method is proposed. To obtain the spatial diversity between the symbols, STBC block codes were used. Space time block coding (STBC) is the most efficient method due to its provision of full spatial diversity and simple linear decoder. The combination of space-time block coding (STBC) and Direct-Sequence CodeDivision Multiple Access (CDMA) has the potential to increase the performance of multiple users in a cellular network. The BER performance of MIMO-CDMA system depends on its spreading strategy. In this paper MIMO-CDMA in calibration with OFDM system is designed with STBC matrices for spreading. The proposed technique outperforms the T-design permutation spreading method and also the conventional method. Simulation results show the gain improvement with STBC approach as compared to other existing techniques.
Keywords :
MIMO communication; OFDM modulation; cellular radio; code division multiple access; decoding; diversity reception; linear codes; space-time block codes; spread spectrum communication; BER performance; OFDM method; SC MIMO-CDMA system; STBC block codes; STBC matrices; T-design permutation spreading method; cellular network; direct-sequence code division multiple access; full spatial diversity; gain improvement; linear decoder; performance analysis; space time block coding; spreading strategy; AWGN channels; Antennas; Bit error rate; Block codes; MIMO; Multiaccess communication; Vectors; CDMA; MIMO; OFDM; STBC; Spread Sequence; T-Designs;
Conference_Titel :
Wireless and Optical Communications Networks (WOCN), 2014 Eleventh International Conference on
Conference_Location :
Vijayawada
Print_ISBN :
978-1-4799-3155-2
DOI :
10.1109/WOCN.2014.6923056
