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Efficient DCT-MCM Detection for Single and Multi-Antenna Wireless Systems

He, Chang, Xiao, Pei, Zhang, Lei, Mao, Juquan, Cao, Aijun and Nikitopoulos, Konstantinos (2017) Efficient DCT-MCM Detection for Single and Multi-Antenna Wireless Systems In: 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 08-13 Oct 2017, Montreal, Canada.

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Abstract

The discrete cosine transform (DCT) based multicarrier modulation (MCM) system is regarded as one of the promising transmission techniques for future wireless communications. By employing cosine basis as orthogonal functions for multiplexing each real-valued symbol with symbol period of T , it is able to maintain the subcarrier orthogonality while reducing frequency spacing to 1/(2T ) Hz, which is only half of that compared to discrete Fourier transform (DFT) based multicarrier systems. In this paper, following one of the effective transmission models by which zeros are inserted as guard sequence and the DCT operation at the receiver is replaced by DFT of double length, we reformulate and evaluate three classic detection methods by appropriately processing the post- DFT signals both for single antenna and multiple-input multipleoutput (MIMO) DCT-MCM systems. In all cases, we show that with our reformulated detection approaches, DCT-MCM schemes can outperform, in terms of error-rate, conventional OFDMbased systems.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
He, Changc.he@surrey.ac.ukUNSPECIFIED
Xiao, PeiP.Xiao@surrey.ac.ukUNSPECIFIED
Zhang, Leilei.zhang@surrey.ac.ukUNSPECIFIED
Mao, Juquanjuquan.mao@surrey.ac.ukUNSPECIFIED
Cao, Aijunac00281@surrey.ac.ukUNSPECIFIED
Nikitopoulos, Konstantinosk.nikitopoulos@surrey.ac.ukUNSPECIFIED
Date : 13 October 2017
Copyright Disclaimer : © 2017 IEEE
Uncontrolled Keywords : Discrete cosine transform (DCT); Signal-to-noise ratio (SNR) analysis; Multiple-input multiple-output (MIMO); Frequency-selective channel; Equalizer design
Additional Information : 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)- Track 1 on "Fundamentals and PHY":
Depositing User : Clive Harris
Date Deposited : 14 Aug 2017 10:14
Last Modified : 14 Aug 2017 10:14
URI: http://epubs.surrey.ac.uk/id/eprint/841906

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