Publication: Spatial Modulation in the Presence of I/Q Imbalance: Optimal Detector & Performance Analysis
Loading...
Date
Advisor
Department
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Type
Abstract
Spatial modulation (SM) is affected by the impacts of in-phase and quadrature-phase imbalance (IQI), which cause degradation of system performance in practical terms. To address this concern, an optimal maximum likelihood detector is proposed for SM-based transmission and the system performance is analyzed by computer simulations and analytical derivations. In addition, this optimal receiver is compared with a non-optimal receiver. Specifically, pairwise and average bit error probabilities are derived for the optimal detector. The results prove that IQI is a critical issue for SM-based transmission and the proposed optimal receiver significantly enhances the SM system performance in the presence of IQI.
Description
Journal or Series
IEEE Communications Letters
ISSN
1089-7798
ISBN
Rights
OPEN
Keywords
spatial modulation, Error performance analysis, I/Q imbalance, maximum likelihood detection