A ZCMT precoding based STBC MIMO-OFDM system with reduced PAPR

Baig, I. and Jeoti, V. and Drieberg, M. (2011) A ZCMT precoding based STBC MIMO-OFDM system with reduced PAPR. In: UNSPECIFIED.

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Abstract

Orthogonal frequency division multiplexing (OFDM) is a strong candidate for 4G wireless networks, due to its high data rate and ability to combat frequency selective fading. OFDM may be combined with multiple-input multiple-output (MIMO) to increase the diversity gain and system capacity over the time-variant frequency-selective channels. However, a major drawback of MIMO-OFDM system is that the transmitted signals on different antennas might exhibit high peak-to-average power ratio (PAPR). The high PAPR leads to nonlinear distortion of the high-power-amplifier (HPA) and results in inter-carrier-interference (ICI) plus out-of-band radiation. In this paper, we present a Zadoff-Chu matrix transform (ZCMT) based space-time-block-coded (STBC) MIMO-OFDM system with reduced PAPR. Extensive simulations have been performed to analyze the PAPR of the proposed system with root-raised-cosine (RRC) pulse shaping. Simulation results show that, ZCMT precoded STBC MIMO-OFDM system has low PAPR when compared to both the Walsh-Hadamard transform (WHT) precoded STBC MIMO-OFDM systems and the conventional STBC MIMO-OFDM systems. © 2011 IEEE.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Additional Information: cited By 2; Conference of 3rd National Postgraduate Conference - Energy and Sustainability: Exploring the Innovative Minds, NPC 2011 ; Conference Date: 19 September 2011 Through 20 September 2011; Conference Code:88531
Uncontrolled Keywords: 4G wireless networks; Diversity gain; Extensive simulations; Frequency-selective channels; High data rate; Intercarrier interference; Matrix transforms; MIMO-OFDM systems; orthogonal frequency division multiplexing (OFDM); Out-of-band radiation; Peak to average power ratio; Precoding; Pulse-shaping; root-raised-cosine (RRC); space-time-block-coded (STBC); System Capacity; Time variant; Transmitted signal; Walsh-Hadamard transform, Gain control; Information theory; MIMO systems; Space-time block coding (STBC); Sustainable development; Telecommunication systems, Orthogonal frequency division multiplexing
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:49
Last Modified: 09 Nov 2023 15:49
URI: https://khub.utp.edu.my/scholars/id/eprint/1564

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