Title: Performance of capacity-based adaptive STBC-VBLAST MIMO wireless communication

Authors: M.M. Kamruzzaman; Wenqi He; Xiang Peng

Addresses: Key Laboratory of Optoelectronics Devices and Systems, Shenzhen University, Shenzhen, China ' Key Laboratory of Optoelectronics Devices and Systems, Shenzhen University, Shenzhen, China ' Key Laboratory of Optoelectronics Devices and Systems, Shenzhen University, Shenzhen, China

Abstract: In this paper, an adaptive STBC-VBLAST transmission approach based on capacity is proposed. The scheme compares the capacity of STBC and VBLAST, selects the higher capacity MIMO mode and feedback its decision to the transmitter with one extra signalling bit. The input information are modulated using QPSK or 16 QAM or 64 QAM modulator and modulated information are further encoded using STBC or VBLAST and then split into n streams which are simultaneously transmitted through N transmit antennas. The simulation results show that the proposed scheme can provide higher capacity always by using STBC or VBLAST adaptively.

Keywords: STBC; VBLAST; transmit diversity; space time block coding; transmitting multiplexing; MIMO; multiple input multiple output; adaptive; wireless communication; simulation; higher capacity.

DOI: 10.1504/IJWMC.2015.070935

International Journal of Wireless and Mobile Computing, 2015 Vol.8 No.4, pp.339 - 345

Available online: 27 Jul 2015 *

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