Title :
Impact of channel estimation error on multiuser detection via the replica method
Author :
Li, Husheng ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
fDate :
29 Nov.-3 Dec. 2004
Abstract :
For practical wireless DS-CDMA systems, channel estimation is imperfect due to noise and interference. The impact of channel estimation error on multiuser detection (MUD) is analyzed under the framework of the replica method. System performance is obtained in the large system limit for optimal MUD, linear MUD and turbo MUD, and is validated by the numerical results of finite systems.
Keywords :
channel estimation; code division multiple access; fading channels; multiuser detection; radiofrequency interference; random noise; spread spectrum communication; DS-CDMA systems; channel estimation error; fading channels; finite systems; interference; linear MUD; multiuser detection; noise; optimal MUD; replica method; turbo MUD; Channel estimation; Finite impulse response filter; Frequency; Intersymbol interference; Multiaccess communication; Multiple access interference; Multiuser detection; Performance analysis; System performance; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE
Print_ISBN :
0-7803-8794-5
DOI :
10.1109/GLOCOM.2004.1379047
