Title :
A Trellis-Coded Modulation Scheme with a Novel Expanded 16-Dimensional Constant Envelope Q2PSK Constellation
Author :
Quinteros, Milton I. ; Kaminsky, E.J. ; Cartwright, Kenneth V.
Author_Institution :
Dept. of Electr. Eng., Univ. of New Orleans, New Orleans, LA, USA
Abstract :
This paper presents a TCM scheme that uses a new expanded 16-Dimensional Constant Envelope Q2PSK constellation along with a simple convolutional encoder of rate 2/3. An effective gain of 2.67 dB over uncoded CEQ2PSK is achievable with low complexity, and without suffering from constellation expansion penalty. Larger coding gains are easily achieved with encoders of higher rates. In addition, an optimal hardware implementation of the required decoders is described.
Keywords :
convolutional codes; quadrature phase shift keying; trellis coded modulation; Q2PSK constellation; TCM scheme; convolutional encoder; quadrature-quadrature phase shift keying; trellis coded modulation scheme; Constellation diagram; Convolution; Convolutional codes; Decoding; Gain; Hardware; Lakes; Modulation coding; Multidimensional systems; Quadrature phase shift keying;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5425761
