Title :
Fast joint detection with cyclic reduction exploiting displacement structures
Author :
Yang, Weidong ; Kim, Sang-Youb ; Xu, Guanghan ; Kavak, Adnan
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Abstract :
Joint detection with the minimum-mean square error (MMSE) criterion has been explored in previous works. Yang, Liu, Xu and Kim (see Asilomar Conference on Signals, Systems and Computers, Asilomar, CA, 1999) discussed joint detection with cyclic reduction, which has been proved to be faster than the popular Cholesky decomposition based algorithm under many scenarios. In this paper, a faster version of cyclic reduction which exploits displacement structures is presented. The proposed fast algorithm is useful when the channel length is long. Simulation results are given for a wireless communication setup
Keywords :
code division multiple access; computational complexity; land mobile radio; least mean squares methods; matrix algebra; signal detection; Cholesky decomposition based algorithm; MMSE criterion; antenna array CDMA system; base station; channel length; computational complexity; cyclic reduction; displacement structures; downlink; fast algorithm; fast joint detection; matrix; minimum-mean square error; mobile terminals; simulation results; uplink; wireless communication; Bismuth; Computational modeling; Computer errors; Detection algorithms; Equations; Matrix decomposition; Multiaccess communication; Partitioning algorithms; Wireless communication;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.861117
