DocumentCode :
3562478
Title :
A code scheme SFBC on 3GPP channel model in correlated MIMO-OFDMA system
Author :
Nga Nguyen ; Bach Tran ; Van Duc Nguyen
Author_Institution :
Sch. of Electron. & Telecommun., Hanoi Univ. of Sci. & Technol., Hanoi, Vietnam
fYear :
2014
Firstpage :
245
Lastpage :
250
Abstract :
This paper investigates the performance of spatial channel coding technique: a space-frequency block coding (SFBC) on the multi input multi output orthogonal frequency division multiplexing access (MIMO-OFDMA) system in correlation stochastic model. The channel model is based on the spatial channel model (SCM) approach, proposed by the 3rd Generation Partnership Project (3GPP) organization. The symbol error rate (SER) of MIMO systems in multipath propagation environment depends on the spatial correlation function of the channel particularly, dependent on antenna element distance in base station (BS) and mobile station (MS) sides. Based on an algorithm of Vertical Bell Laboratories Layered Space Time (V-BLAST), a successive cancellation method applied to the receiver, we obtain the high signal-noise rate (SNR) in correlation channel. The number of users when using SFBC with VBLAST is also calculated in the system, the more of the users the lower of the SERs. Our results are simulated on the SCM in three environments such as suburban-macro, urban-macro and urban-micro cell based on long term evolution (LTE) down link standard for 2×2 MIMO OFDMA system. The simulation results show that the combined SFBC code scheme with VBLAST-ZF has better performance than that obtained by using only detection when the same distance of antenna elements (correlation ratio) is used.
Keywords :
3G mobile communication; MIMO communication; OFDM modulation; block codes; cellular radio; correlation methods; frequency division multiple access; signal detection; wireless channels; 3GPP channel model; SFBC; Third Generation Partnership Project; V-BLAST; VBLAST-ZF; Vertical Bell Laboratories Layered Space Time; base station; correlated MIMO-OFDMA system; correlation stochastic model; mobile station; multipath propagation; multiple input multiple output system; orthogonal frequency division multiplexing access; signal detection; space frequency block coding; spatial channel coding technique; suburban-macrocellular radio; successive cancellation method; symbol error rate; urban-microcellular radio; Correlation; Long Term Evolution; MIMO; OFDM; Receivers; Signal to noise ratio; Transmitting antennas; LTE downlink channel; MIMO - OFDMA; SCM; SFBC; V-BLAST;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Technologies for Communications (ATC), 2014 International Conference on
Print_ISBN :
978-1-4799-6955-5
Type :
conf
DOI :
10.1109/ATC.2014.7043392
Filename :
7043392
Link To Document :
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