Title :
Blind multipath estimation with Toeplitz displacement for long code DS-CDMA
Author :
Yu, Qian ; Zhang, Gaonan ; Bi, Guoan
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
This paper proposes a blind channel estimation scheme for long code DS-CDMA systems with multipath fading channel. The Toeplitz displacement method is used to remove the effects of channel noise and interferences before the correlation matching approach is adopted to estimate the channel parameters. Simulation results show that the proposed method has better MSE performance and more robust against the near-far problem.
Keywords :
channel estimation; code division multiple access; codes; correlation methods; fading channels; interference suppression; mean square error methods; multipath channels; spread spectrum communication; MSE performance; Toeplitz displacement method; blind channel estimation scheme; channel noise; correlation matching; direct sequence code division multiple access; interference; long code DS-CDMA systems; mean square error; multipath fading channel; spreading code; Blind equalizers; Channel estimation; Interference; Multiaccess communication; Multipath channels; Noise cancellation; Noise robustness; Parameter estimation; Shape; Signal processing;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204055
