Title :
DS/SSMA communication system with trellis coding and CPM
Author :
Lok, Tat M. ; Lehnert, James S.
Author_Institution :
Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA
fDate :
5/1/1994 12:00:00 AM
Abstract :
A direct-sequence spread spectrum multiple access (DS/SSMA) communication system employing continuous phase modulation (CPM) and trellis coding is described and analyzed to obtain an estimate of the error probability. The trellis code provides significant coding gain while the CPM signal format gives desirable spectral properties. The analysis shows that significant improvement in error probability over the standard binary DS/SSMA system can be achieved with relatively simple codes
Keywords :
coding errors; error statistics; multi-access systems; phase modulation; probability; spread spectrum communication; trellis codes; CPM; CPM signal format; DS/SSMA communication system; coding gain; continuous phase modulation; direct-sequence spread spectrum multiple access; error probability; spectral properties; trellis coding; Binary phase shift keying; Code standards; Communication channels; Continuous phase modulation; Convolutional codes; Error probability; Phase estimation; Spread spectrum communication; Transmitters; Viterbi algorithm;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
