Cross Z-Complementary Pairs for Optimal Training in Spatial Modulation over Frequency Selective Channels

Zilong Liu; Ping Yang; Yong Liang Guan; Pei Xiao

doi:10.1109/TSP.2020.2973114

Cross Z-Complementary Pairs for Optimal Training in Spatial Modulation over Frequency Selective Channels

Zilong Liu, Ping Yang^*, Yong Liang Guan, Pei Xiao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

The contributions of this article are twofold: Firstly, we introduce a novel class of sequence pairs, called "cross Z-complementary pairs (CZCPs)," each displaying zero-correlation zone (ZCZ) properties for both their aperiodic autocorrelation sums and crosscorrelation sums. Systematic constructions of perfect CZCPs based on selected Golay complementary pairs (GCPs) are presented. Secondly, we point out that CZCPs can be utilized as a key component in designing training sequences for broadband spatial modulation (SM) systems. We show that our proposed SM training sequences derived from CZCPs lead to optimal channel estimation performance over frequency-selective channels.

Original language	English
Article number	8993844
Pages (from-to)	1529-1543
Number of pages	15
Journal	IEEE Transactions on Signal Processing
Volume	68
DOIs	https://doi.org/10.1109/TSP.2020.2973114
Publication status	Published - 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

ASJC Scopus Subject Areas

Signal Processing
Electrical and Electronic Engineering

Keywords

channel estimation
frequency-selective channels
Golay complementary pairs (GCPs)
spatial modulation
training sequence design

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10.1109/TSP.2020.2973114

Cite this

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language = "English",

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pages = "1529--1543",

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AU - Liu, Zilong

AU - Yang, Ping

AU - Guan, Yong Liang

AU - Xiao, Pei

PY - 2020

Y1 - 2020

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AB - The contributions of this article are twofold: Firstly, we introduce a novel class of sequence pairs, called "cross Z-complementary pairs (CZCPs)," each displaying zero-correlation zone (ZCZ) properties for both their aperiodic autocorrelation sums and crosscorrelation sums. Systematic constructions of perfect CZCPs based on selected Golay complementary pairs (GCPs) are presented. Secondly, we point out that CZCPs can be utilized as a key component in designing training sequences for broadband spatial modulation (SM) systems. We show that our proposed SM training sequences derived from CZCPs lead to optimal channel estimation performance over frequency-selective channels.

KW - channel estimation

KW - frequency-selective channels

KW - Golay complementary pairs (GCPs)

KW - spatial modulation

KW - training sequence design

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Cross Z-Complementary Pairs for Optimal Training in Spatial Modulation over Frequency Selective Channels

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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