SAGE Based Suboptimal Receiver for Downlink MC-CDMA Systems
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
An iterative joint data detection and channel estimation algorithm for downlink multi-carrier code division multiple access (MC-CDMA) systems is proposed. The resulting algorithm is a space alternating generalized expectation-maximization (SAGE) algorithm which updates the data sequences serially and the channel parameters in parallel, leading to a receiver structure that also incorparates interchannel interference cancellation. Its performance is compared with various Minimum Mean Square Error (MMSE) estimators for a multipath frequency selective fading channel using simulations. It is illustrated that the proposed SAGE algorithm performs better than the MMSE estimators considered in this paper.
Açıklama
Anahtar Kelimeler
Suboptimal receiver, joint channel estimation and data detection, downlink, MC-CDMA, SAGE algorithm
Kaynak
IEEE COMMUNICATIONS LETTERS
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
15
Sayı
12
