Spatial Modulation in the Presence of I/Q Imbalance: Optimal Detector & Performance Analysis
Küçük Resim Yok
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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 hit 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.
Açıklama
Anahtar Kelimeler
Error performance analysis, I/Q imbalance, maximum likelihood detection, spatial modulation
Kaynak
IEEE COMMUNICATIONS LETTERS
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
22
Sayı
8
