Title :
Per-survivor based detection of DPSK modulated high rate turbo codes over Rayleigh fading channels
Author :
Zhao, Bin ; Valenti, Matthew C.
Author_Institution :
Lane Dept. of Comput. Sci. & Electr. Eng., West Virginia Univ., Morgantown, WV, USA
Abstract :
We investigate the performance of a new method for implementing high rate turbo codes over complex fading channels with unknown states. The proposed system features the serial concatenation of an outer punctured turbo code and an inner accumulator separated by a nonuniform interleaver. Per-survivor based a posteriori probability (APP) demodulation and turbo processing are applied to achieve iterative channel estimation and decoding under unknown channel states.
Keywords :
AWGN channels; Rayleigh channels; concatenated codes; demodulation; differential phase shift keying; interleaved codes; iterative decoding; iterative methods; modulation coding; parameter estimation; probability; signal detection; turbo codes; AWGN channels; DPSK; Rayleigh fading channels; a posteriori probability demodulation; high rate turbo codes; inner accumulator; iterative channel estimation; iterative decoding; nonuniform interleaver; outer punctured turbo code; per-survivor based APP demodulation; per-survivor based detection; serial concatenated code; turbo processing; AWGN; Channel estimation; Convolutional codes; Demodulation; Differential quadrature phase shift keying; Energy efficiency; Fading; Iterative decoding; Modulation coding; Turbo codes;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.987650
