Title :
FPGA realization of adaptive coding rate trellis-coded 8PSK system
Author :
Choi, Eun-A ; Jung, Ji-Won ; Nae-Soo Kim
Author_Institution :
Satellite Multimedia Res. Team, Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Abstract :
An adaptive code-rate scheme for Ka-band satellite system which adapts the level of coding to overcome rain-induced signal fade is presented. It is based on a pragmatic code, and can decode the QPSK and TC-8PSK signals using a single Viterbi decoder. The optimal parameters for implementation through computer simulations are determined. The adaptive channel coding algorithms described in this paper may be used for high-speed satellite communications to compensate the rain-attenuation.
Keywords :
Viterbi decoding; adaptive codes; channel coding; field programmable gate arrays; quadrature phase shift keying; radiowave propagation; satellite communication; trellis coded modulation; FPGA; Ka-band satellite system; QPSK; TC-8PSK signals; Viterbi decoder; adaptive channel coding; adaptive coding rate; field programmable gate arrays; high-speed satellite communications; phase shift keying; pragmatic code; quadrature phase shift keying; rain-attenuation; rain-induced signal fade; trellis-coded 8PSK system; Adaptive systems; Channel coding; Computer simulation; Convolution; Convolutional codes; Decoding; Field programmable gate arrays; Modulation coding; Quadrature phase shift keying; Satellite broadcasting;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1264364
