Blind channel estimation for space-time coding systems with Baum-Welch algorithm
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Dosyalar
Tarih
2002
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IEEE
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In recent years, space-time coding is proposed to provide significant capacity gains over the traditional communication systems in fading wireless channels. In this paper, we consider the problem of blind estimation of the channel parameters along with space-time coded signals. Our proposed approach exploits the finite alphabet property of the space-time coded signals and is based on the unconditional signal model by treating the information sequence as stochastic I.I.D. sequences. The iterative Baum-Welch algorithm is then adapted to solve resulting unconditional ML optimization cost function. Finally, some simulation results are presented.
Açıklama
Anahtar Kelimeler
Algorithms, Approximate CRB, Blind channel estimation, Blind equalizers, Block codes, Channel capacity, Channel matrix, Channel parameters, Codes, Communication systems capacity, Computer simulation, Discrete-time finite state Markov process, Diversity methods, Encoding, Fading, Fading (radio), Fading channels, Fading wireless channels, Finite alphabet property, i.i.d. sequences, Information sequence, Interference, Iterative algorithms, Iterative Baum-Welch algorithm, Iterative methods, Iterative ML algorithm, Land mobile radio, Markov processes, Maximum likelihood estimation, Mobile communication system, Ommunication channels (information theory), Optimisation, Radio transmitters, Receiving antennas, Signal encoding, Simulation results, Space time codes, Space time adaptive processing, Space-time block coding (STBC), Space-time coded signals, Space-time coding, Space-time coding systems, Stochastic processes, Transmitting antennas, Unconditional ML estimates, Unconditional ML optimization cost function, Unconditional signal model, Wireless telecommunication systems
Kaynak
IEEE International Conference on Communications
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
3
Sayı
Künye
Çırpan, H. A. & Panayırcı, E. (2002). Blind channel estimation for space-time coding systems with baum-welch algorithm. Paper presented at the , 3 1579-1583 vol.3. doi:10.1109/ICC.2002.997115
