Recently, the concept of enhanced cross Zcomplementary sets (E-CZCS) has been proposed for training sequence design in generalized spatial modulation (GSM).Based on generalized Boolean functions, we present a new construction of E-CZCSs having maximum zero correlation zone (ZCZ) width.Based on the proposed E-CZCSs, numerical simulation results indicate that the resultant training sequences lead to superior channel estimation performance in broadband GSM systems.
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Huang et al. (2024) studied this question.
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