Adaptive Kalman receiver for OFDM systems with transmit diversity in mobile wireless channels
Yükleniyor...
Dosyalar
Tarih
2004-12
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Walter De Gruyter GMBH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A new joint channel tracking and symbol detection scheme is proposed in this paper for pilot symbol assisted transmit diversity OFDM systems by exploiting the correlation of the adjacent subchannels. Modelling the channel frequency response of every subcarrier corresponding to each transmit antenna as random processes, we employ Kalman filters for both channel tracking and subsequent decoding with diversity gain. Among different stochastic models, the AR model is adopted herein for channel dynamics. Since the proposed adaptive receiver uses two Kalman filters to track the variations of the channel and subsequently to detect the information symbols, they are combined in the coupled receiver structure. Finally the performance of the proposed method is studied through experimental results.
Açıklama
Anahtar Kelimeler
Antennas, Channel estimation, Channel estimator, Channel tracking, Channel capacity, Diversity, Frequency response, Information symbols, Kalman filter, Kalman filtering, Mathematical models, Mobile telecommunication systems, Mobile wireless channels, OFDM, Orthogonal frequency division multiplexing, Random processes, Wireless telecommunication systems
Kaynak
Frequenz
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
58
Sayı
11-12
Künye
Şen, A., Çırpan, H. A. & Panayırcı, E. (2004). Adaptive Kalman receiver for OFDM systems with transmit diversity in mobile wireless channels. Frequenz, 58(11-12), 2334-238. doi:10.1515/FREQ.2004.58.11-12.234
