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arXiv · 2311.18390

Enhanced Cross Z-Complementary Set and Its Application in Generalized Spatial Modulation

Zhen-Ming Huang·Cheng-Yu Pai·Zilong Liu·Chao-Yu Chen
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Abstract

Generalized spatial modulation (GSM) is a novel multiple-antenna technique offering flexibility among spectral efficiency, energy efficiency, and the cost of RF chains. In this paper, a novel class of sequence sets, called enhanced cross Zcomplementary set (E-CZCS), is proposed for efficient training sequence design in broadband GSM systems. Specifically, an E-CZCS consists of multiple CZCSs possessing front-end and tail-end zero-correlation zones (ZCZs), whereby any two distinct CZCSs have a tail-end ZCZ when a novel type of cross-channel aperiodic correlation sums is considered. The theoretical upper bound on the ZCZ width is first derived, upon which optimal E-CZCSs with flexible parameters are constructed. For optimal channel estimation over frequency-selective channels, we introduce and evaluate a novel GSM training framework employing the proposed E-CZCSs.

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Zhen-Ming Huang, Cheng-Yu Pai, Zilong Liu, Chao-Yu Chen. 2023-11-30. Enhanced Cross Z-Complementary Set and Its Application in Generalized Spatial Modulation. https://arxiv.org/abs/2311.18390

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