Title :
Bandwidth- and power-efficient pragmatic codes
Author_Institution :
COMSAT Lab., Clarksburg, MD, USA
fDate :
29 Nov-2 Dec 1993
Abstract :
Pragmatic trellis codes yield high bandwidth and power efficiency with low-complexity implementation. The paper presents techniques for constructing simple codes that build upon pragmatic codes. The generated codes can be decoded by using the available pragmatic decoder chips. By combining pragmatic code construction with periodically time-varying trellis code construction, high-rate codes that compare favourably with optimum trellis codes can be obtained. Moreover, the pragmatic approach can be combined with multistage coding to generate bandwidth- and power-efficient codes that outperform optimum trellis codes, and offer low complexity of implementation
Keywords :
computational complexity; decoding; phase shift keying; trellis codes; bandwidth-efficient pragmatic codes; code construction; complexity; high-rate codes; implementation; multistage coding; power-efficient pragmatic codes; pragmatic decoder chips; time-varying trellis code; trellis codes; Bandwidth; Convolution; Convolutional codes; Decoding; Euclidean distance; Hardware; Laboratories; Modulation coding; Phase shift keying; Quadrature phase shift keying;
Conference_Titel :
Global Telecommunications Conference, 1993, including a Communications Theory Mini-Conference. Technical Program Conference Record, IEEE in Houston. GLOBECOM '93., IEEE
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-0917-0
DOI :
10.1109/GLOCOM.1993.318311
