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Low complexity, high performance and bandwidth efficient concatenated coded 8-PSK schemes for reliable data communications

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3 Author(s)
S. Rajpal ; Dept. of Electr. Eng., Hawaii Univ., Honolulu, HI, USA ; D. J. Rhee ; Shu Lin

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.<>

Published in:

IEEE Transactions on Communications  (Volume:43 ,  Issue: 2/3/4 )