Title :
On noncoherent sequence detection of coded QAM
Author :
Colavolpe, Giulio ; Raheli, Riccardo
Author_Institution :
Dipt. di Ingegneria dell´´Inf., Parma Univ., Italy
Abstract :
New noncoherent sequence detection algorithms for combined demodulation and decoding of coded linear modulations transmitted over additive white Gaussian noise channels are presented. These schemes may be based on the Viterbi algorithm and have a performance which approaches that of coherent detection for increasing complexity. The tradeoff between complexity and performance is simply controlled by a parameter referred to as implicit phase memory and the number of trellis states.
Keywords :
Gaussian noise; Viterbi decoding; computational complexity; demodulation; maximum likelihood detection; modulation coding; quadrature amplitude modulation; sequences; white noise; TCM; Viterbi algorithm; additive white Gaussian noise channels; coded QAM; coded linear modulation; complexity; decoding; demodulation; implicit phase memory; maximum likelihood detection; noncoherent sequence detection algorithms; performance; trellis states; AWGN; Additive white noise; Detection algorithms; Modulation coding; Phase detection; Phase frequency detector; Phase modulation; Phase shift keying; Quadrature amplitude modulation; Viterbi algorithm;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.709434
