Title :
Low complexity, high performance and bandwidth efficient concatenated coded 8-PSK schemes for reliable data communications
Author :
Rajpal, S. ; Rhee, D.J. ; Shu Lin
Author_Institution :
Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI, USA
Abstract :
Nested concatenated coded 8-PSK modulation schemes are proposed to achieve good error performance, large coding gains, and high spectral efficiency with reduced decoding complexity. In the proposed schemes, Reed-Solomon (RS) codes, including the NASA standard (255, 223) RS code, are used as the outer codes and multidimensional trellis 8-PSK codes are used as the inner codes. The inner codes are constructed from convolutional codes with good free branch distances and multidimensional 8-PSK coset codes through concatenation. These schemes are analyzed and upper bounds on their error performances are derived. Analytical and simulation results show that these schemes achieve large coding gains over uncoded reference systems for bit-error-rates below 10/sup -3/, with reduced decoding complexity.<>
Keywords :
Reed-Solomon codes; computational complexity; concatenated codes; convolutional codes; data communication; decoding; error statistics; phase shift keying; trellis coded modulation; NASA standard RS code; Reed-Solomon codes; analytical results; bandwidth efficient concatenated coded 8-PSK schemes; bit-error-rates; coding gains; convolutional codes; decoding complexity; error performance; free branch distances; high performance; inner codes; low complexity; modulation schemes; multidimensional 8-PSK coset codes; multidimensional trellis 8-PSK codes; outer codes; reliable data communications; simulation; spectral efficiency; upper bounds; Bandwidth; Code standards; Concatenated codes; Convolutional codes; Decoding; Modulation coding; Multidimensional systems; NASA; Performance gain; Reed-Solomon codes;
Journal_Title :
Communications, IEEE Transactions on
