While multiple-input multiple-output (MIMO) is considered as the key enabling technology for high data rate wireless communications, it faces several major challenges in the 5th generation MIMO systems due to limited number of radio frequency (RF) chains and space restrictions. In light of this, generalized-spatial modulation (GSM) and dual- polarized (DP) antenna arrays are two potential technologies to tackle these challenges. In this paper, we propose a novel two-stage optimum antenna grouping scheme in GSM with DP antennas. In the first stage of the proposed scheme, we select antennas with their polarizations as group indicators followed by the second stage, which determines the potential antennas and polarizations that can be selected within each group. The proposed algorithm directly chooses the activated antennas and therefore, completely eliminates the necessity of search over an extensive space. We use the average bit error probability (ABEP) to analyze the performance of the system and validate them by extensive Monte Carlo simulations.
Antenna Grouping in Dual-Polarized Generalized Spatial Modulation
01.09.2017
211325 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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