Performance analysis of multicell multiuser MIMO MC DS/CDMA system with MMSE user-ordered SIC technique

Authors:
Prabagarane Nagaradjane;Lakshmi Krishnan;Arvind Sai Sarathi Vasan
Affiliations:
Department of ECE, SSN Institutions, Chennai 603110, India;Department of ECE, University of Maryland, College Park, MD, USA;Department of ECE, University of Maryland, College Park, MD, USA
Venue:
Computers and Electrical Engineering
Year:
2012

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Abstract

In this paper, we study the performance of co-channel interference (CCI) cancellation technique based on minimum mean square error (MMSE) user-ordered successive interference cancellation (UOSIC) for multi input multi output (MIMO) multicarrier (MC) direct sequence code division multiple access (DS/CDMA) system for multi cell setting. Though MC DS/CDMA possesses several advantages, interference limits the capacity of the system. Mitigating the interference can directly swell the system capacity. In this contribution, we consider K co-channel users arbitrarily distributed in an L cell uplink and downlink communication system with both the base stations (BSs) and the mobile stations (MSs) equipped with two antennas each. Also, we assume that, both the BSs and MSs employ space time block code (STBC) based on the transmission matrix (G2). Our simulation study shows that, MMSE UOSIC provides better achievable bit-error rate (BER) than MMSE maximum likelihood (ML) and MMSE successive interference cancellation (SIC) technique due to optimal ordering among users and iterative interference cancellation (IC).