Title :
Performance evaluation of different channel coding schemes for time-varying multipath channels in UMTS/TDD
Author :
Farah, J. ; Arndt, M. ; Lienard, J.
Author_Institution :
DIH/OCF, France Telecom R&D, Meylan, France
fDate :
6/23/1905 12:00:00 AM
Abstract :
We study the behaviour of a UMTS/TDD synchronous downlink receiver, under different scenarios. Computer simulations were conducted to compare the overall system performances obtained with turbo coding to the convolutional coded and channel non coded systems. The propagation environment is a six-path channel with Rayleigh fading amplitudes and fixed delays. Moreover, we propose a method for reducing the iteration number via a cyclic redundancy check (CRC), and estimate the channel decoding complexity to be expected, for different channel conditions
Keywords :
Rayleigh channels; Viterbi decoding; cellular radio; channel coding; convolutional codes; delays; iterative decoding; multipath channels; radio links; radio receivers; time-varying channels; turbo codes; CRC check; Rayleigh fading amplitudes; SOVA; UMTS/TDD; channel coding; channel decoding complexity; channel noncoded system; computer simulations; convolutional coded system; cyclic redundancy check; fixed delay; iterative decoding; maximum a posteriori algorithm; performance evaluation; propagation environment; soft output Viterbi algorithm; synchronous downlink receiver; third generation mobile communication systems; time-varying multipath channels; turbo coding; 3G mobile communication; Channel coding; Computer simulation; Convolutional codes; Cyclic redundancy check; Downlink; Iterative decoding; Propagation delay; Rayleigh channels; Turbo codes;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965682
