Technical Program

Paper Detail

Paper IDT.4.6
Paper Title Cross Z-Complementary Pairs (CZCPs) for Optimal Training in Broadband Spatial Modulation Systems
Authors Zilong Liu, University of Essex, United Kingdom; Ping Yang, University of Electronic Science and Technology of China, China; Yong Liang Guan, Nanyang Technological University, Singapore; Pei Xiao, University of Surrey, United Kingdom
Session T.4: Sequences
Presentation Lecture
Track Topics in Information Theory
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Virtual Presentation  Click here to watch in the Virtual Symposium
Abstract Spatial modulation (SM) is a new multiple-input multiple-output (MIMO) paradigm in which only one transmit antenna is activated over every symbol duration. So far, efficient SM training sequences (different from the existing design for conventional MIMO systems) remain largely open. Motivated by this research problem, 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. A CZCP may be transmitted in two non-orthogonal SM channels and hence proper design should be conducted to minimize the cross-interference of the two constituent sequences. We construct perfect CZCPs based on selected Golay complementary pairs. We show that the training sequences derived from our proposed CZCPs lead to optimal channel estimation performance over frequency-selective SM channels.

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2021 IEEE International Symposium on Information Theory

11-16 July 2021 | Melbourne, Victoria, Australia

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