Title :
Performance of RS encoded TCM-D8PSK on a vegetatively shadowed land mobile satellite channel (U)
Author :
Bhaskaran, R. ; Kim, Junghwan ; Kwatra, S.C.
Author_Institution :
Dept. of Electr. Eng., Toledo Univ., OH, USA
Abstract :
A Reed-Solomon/trellis coded concatenated (RS/TCM) scheme is investigated for a land mobile satellite system (LMSS). The inner code of the RS/TCM is a rate 2/3, 4-state TCM and the outer code is a rate 56/63 RS code. The modulation scheme used is differential 8 phase shift keying (D8PSK). Performance of this scheme is investigated by computer simulation for a vegetatively shadowed (VS) channel that typifies a satellite to mobile down-link. It is shown that the proposed RS/TCM scheme performs 4 dB better than rate 4/6, multiplicity 2, TCM (MTCM) and 10 dB better than conventional rate 2/3 TCM at a BER of 10-3
Keywords :
Reed-Solomon codes; adjacent channel interference; cochannel interference; concatenated codes; differential phase shift keying; mobile satellite communication; telecommunication channels; trellis coded modulation; BER; RS encoded TCM-D8PSK; Reed-Solomon codes; adjacent channel interference; co-channel interference; computer simulation; differential 8 phase shift keying; down-link; inner code; modulation scheme; outer code; performance; trellis coded concatenated scheme; vegetatively shadowed land mobile satellite channel; Artificial satellites; Bandwidth; Computer simulation; Decoding; Fading; Filters; Interchannel interference; Modulation coding; Quadrature phase shift keying; Shadow mapping;
Conference_Titel :
Military Communications Conference, 1994. MILCOM '94. Conference Record, 1994 IEEE
Conference_Location :
Fort Monmouth, NJ
Print_ISBN :
0-7803-1828-5
DOI :
10.1109/MILCOM.1994.473957
