Title :
Trellis coded Stokes parameter modulation in coherent optical communications
Author :
Hohjo, Mitsuzo ; Yashima, Hiroyuki ; Suzuki, Jouji
Author_Institution :
Dept. of Inf. & Comput. Sci., Saitama Univ., Japan
Abstract :
Trellis-coded Stokes parameter modulation in coherent optical communications whose signal symbols are represented by the points on the Poincare sphere are presented. The probability density function of received Stokes parameter and the maximum likelihood metric in the Poincare sphere are derived. To obtain a maximum coding gain, quasi-optimum symbol points are presented. The bit error probability is given theoretically and the effects of phase-noise are also presented. It is clarified that the coding gain for coded 4-SPSK (Stokes parameter modulation) over 2-SPSK with two-state trellis is 3.6 dB, and that trellis coding is effective even in the presence of large effects of phase-noise
Keywords :
light coherence; optical links; optical modulation; probability; trellis codes; 2-SPSK; Poincare sphere; Stokes parameter modulation; TCM; bit error probability; coded 4-SPSK; coding gain; coherent optical communications; maximum likelihood metric; phase-noise; probability density function; signal symbols; trellis coded modulation; two-state trellis; Degradation; Error probability; Maximum likelihood decoding; Modulation coding; Optical fiber communication; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; Stokes parameters;
Conference_Titel :
Global Telecommunications Conference, 1992. Conference Record., GLOBECOM '92. Communication for Global Users., IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0608-2
DOI :
10.1109/GLOCOM.1992.276709
