Title :
A divide-and-conquer algorithm for channel estimation in multi-user space-time coded transmissions
Author :
Younis, Waleed M. ; Sayed, Ali H.
Author_Institution :
Electr. Eng. Dept., Univ. of California, Los Angeles, Los Angeles, CA, USA
Abstract :
We develop channel estimation techniques for multiple-input multiple-output (MIMO) channels that employ space-time block-coded (STBC) transmissions. We derive the MMSE channel estimator for multi-user Alamouti STBC transmissions over both flat fading and frequency selective fading channels. The derivation exploits the structure of the space-time code to reduce the complexity of the algorithm.
Keywords :
MIMO communication; channel estimation; fading channels; least mean squares methods; space-time block codes; MIMO; MMSE channel estimation; divide-and-conquer algorithm; flat fading channel; frequency selective fading channel; multiple-input multiple-output channels; multiuser Alamouti STBC transmissions; multiuser space-time code transmissions; space-time block code; Abstracts; Artificial intelligence; Bismuth; Complexity theory; Estimation; Time-frequency analysis; Vectors;
Conference_Titel :
Signal Processing Conference, 2004 12th European
Conference_Location :
Vienna
Print_ISBN :
978-320-0001-65-7
