Title :
A novel MMSE detection technique for DS-CDMA
Author :
Luo, Tao ; Wu, Gang ; Li, Shaoqian ; Guan, Yong Liang ; Law, Choi Look
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chendu
Abstract :
A novel linear per user minimum mean square error (PU-MMSE) detection technique for direct sequence code- division multiple access (DS-CDMA) with frequency domain equalization (FDE) based on the MMSE criterion applied per user is presented, which approximately restores the orthogonality among the spreading sequences and reduces the interference. It is shown by computer simulation that the DS-CDMA with PU-MMSE FDE obviously outperforms the DS-CDMA with conventional MMSE FDE.
Keywords :
code division multiple access; equalisers; frequency-domain analysis; interference suppression; least mean squares methods; spread spectrum communication; DS-CDMA; MMSE detection technique; direct sequence code- division multiple access; frequency domain equalization; interference reduction; minimum mean square error; Bit error rate; Downlink; Fading; Frequency domain analysis; Interference; Mean square error methods; Multiaccess communication; Multicarrier code division multiple access; Performance gain; Wireless communication; Direct sequence code-division multiple access(DS-CDMA); frequency domain equalization (FDE); per user minimum mean square error (PU-MMSE);
Conference_Titel :
Information, Communications & Signal Processing, 2007 6th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0982-2
Electronic_ISBN :
978-1-4244-0983-9
DOI :
10.1109/ICICS.2007.4449607
