Title :
A new turbo decoding algorithm with joint time and phase estimation
Author :
Ormesher, Richard ; Mason, Jeff
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Abstract :
This report describes a new algorithm for the joint estimation of carrier phase, symbol timing, and data in a turbo coded and phase shift keyed (PSK) digital communications system. Jointly estimating phase, timing, and data can give processing gains of several dB over conventional processing, which consists of joint estimation of carrier phase and symbol timing followed by estimation of the turbo-coded data. The new joint estimator allows delay and phase locked loops (DPLL) to work at lower bit energies where turbo codes are most useful. Performance results of software simulation tests are given.
Keywords :
channel coding; decoding; delay lock loops; digital communication; military communication; phase estimation; phase locked loops; phase shift keying; timing; turbo codes; DPLL; PSK; carrier phase estimation; delay and phase locked loops; digital communications system; military communication; performance; phase shift keying; symbol timing; time estimation; turbo codes; turbo decoding algorithm; turbo-coded data; Decoding; Delay estimation; Digital communication; Gain; Phase estimation; Phase locked loops; Phase shift keying; Software performance; Timing; Turbo codes;
Conference_Titel :
Military Communications Conference, 2004. MILCOM 2004. 2004 IEEE
Print_ISBN :
0-7803-8847-X
DOI :
10.1109/MILCOM.2004.1494860
