Title :
An analysis of the MPSK scheme with differential recursive detection (DRD)
Author :
Liu, Jian ; Kim, Junghwan ; Kwatra, S.C. ; Stevens, G.H.
Author_Institution :
Dept. of Electr. Eng., Toledo Univ., OH, USA
Abstract :
A differential recursive detection (DRD) technique for multiple phase shift keying (MPSK) is proposed, and its performance is analyzed and computer simulated. By combining the multiple-symbol differential detection algorithm with conventional (one-symbol) differential detection, based on maximum-likelihood estimation for a multisymbol observation interval, it is possible to construct a recursive algorithm with a much simpler structure and comparable performance in error rate. Results from computer simulation show 1.25 dB, 2 dB, and 2.55 dB gain over conventional differential detection for the input symbol sequence length of N=3, 5, and 10, respectively, at a bit error rate of 10-5 in additive white Gaussian noise. For N of more than 10, the performance of DRD is close to that of ideal coherent detection for the differentially encoded signal
Keywords :
phase shift keying; signal detection; white noise; MPSK; additive white Gaussian noise; bit error rate; differential recursive detection; differentially encoded signal; input symbol sequence length; maximum-likelihood estimation; multiple phase shift keying; multiple-symbol differential detection algorithm; multisymbol observation interval; Analytical models; Computational modeling; Computer simulation; Detection algorithms; Error analysis; Gain; Maximum likelihood estimation; Performance analysis; Phase detection; Phase shift keying;
Conference_Titel :
Vehicular Technology Conference, 1991. Gateway to the Future Technology in Motion., 41st IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-87942-582-2
DOI :
10.1109/VETEC.1991.140593
