Joint VBLAST/STBC assisted MC DS/CDMA system with multiuser detection

Authors:
Prabaagarane Nagaradjane;Arvind Sai Sarathi Vasan;Lakshmi Krishnan;Anand Venkataswamy
Affiliations:
Department of Electronics and Communication Engineering, SSN Institutions, Chennai, India;Department of Electronics and Communication Engineering, SSN Institutions, Chennai, India;Department of Electronics and Communication Engineering, SSN Institutions, Chennai, India;Department of Electronics and Communication Engineering, SSN Institutions, Chennai, India
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

Citing 4
Cited 1

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Abstract

In this paper a joint transmit scheme employing VBLAST and STBC MIMO profile is considered for a MC DS CDMA system. By combining both the MIMO profile spatial multiplexing and diversity gain can be achieved. At the receiver we employed the generalized MUDs like MAP, combined OSIC and SIC detectors. Also, the performance of a joint MAP/OSIC detector is assayed. To detect the signal, channel matrix and received signal matrix are modified. Also both ZF and MMSE estimation techniques are employed to study the performance of the system. It is discerned through simulation VBLAST/MMSE Joint MAP/OSIC detector, performs closer to that of optimal MUD with reduced complexity.