Title :
Comparison of ZF-BLE and MMSE-BLE in TD-SCDMA system
Author :
Shao-li, Kang ; Zheng-Ding, Qiu ; Shi-he, Li
Author_Institution :
Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China
Abstract :
In this paper, we analyze two kinds of sub-optimal joint detection algorithms-ZF-BLE (zero forcing block linear equalizer) and MMSE-BLE (minimum mean square error block linear equalizer). In theory, we compare their performance by computation and the ability of resisting ISI and MAI. Also, given different channel-impulse responses, various noise covariance matrices, single or smart antennas, we simulate their performance in up-link and down-link. Then we achieve conclusions on how to select them in practice
Keywords :
adaptive antenna arrays; code division multiple access; covariance matrices; equalisers; interference suppression; intersymbol interference; land mobile radio; least mean squares methods; noise; radio receivers; radiofrequency interference; signal detection; time division multiplexing; transient response; ISI; MAI; MMSE-BLE; TD-SCDMA system; ZF-BLE; channel-impulse responses; down-link; minimum mean square error block linear equalizer; mobile radio; noise covariance matrix; single antennas; smart antennas; sub-optimal joint detection algorithms; up-link; zero forcing block linear equalizer; Additive white noise; Algorithm design and analysis; Covariance matrix; Detection algorithms; Filters; Gaussian noise; Mobile antennas; Multiaccess communication; Resists; Time division synchronous code division multiple access;
Conference_Titel :
Info-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7010-4
DOI :
10.1109/ICII.2001.983594
