Bit vs. Symbol Interleaving for Parallel Concatenated Trellis Coded Modulation. Fragouli, C. & Wesel, R. D. GlobeCom, vol. 2:pages 931–935, 2001. abstract bibtex This paper compares bit versus symbol interleaving for parallel-concatenated trellis-coded turbo codes, employing the turbo encoder structure proposed in Benedetto et al., (1996). To compare systems optimized with the same techniques, the paper extends the turbo-encoder design procedure proposed in Fragouli et al. (2001), to bit-interleaved systems. We discuss a method to jointly design the multiple required interleavers for the bit-interleaved system, and a procedure to select constituent encoders that can take advantage of the interleaver structure to achieve a low error floor. Simulation results for the designed bit-interleaved system show better performance than bit-interleaved performance reported in the literature. The symbol-interleaved system though achieves an earlier convergence, especially with an increased number of decoder iterations, but at the cost of a slightly higher error floor.
@article{fragouli_bit_2001,
abstract = {This paper compares bit versus symbol interleaving for parallel-concatenated trellis-coded turbo codes, employing the turbo encoder structure proposed in Benedetto et al., (1996). To compare systems optimized with the same techniques, the paper extends the turbo-encoder design procedure proposed in Fragouli et al. (2001), to bit-interleaved systems. We discuss a method to jointly design the multiple required interleavers for the bit-interleaved system, and a procedure to select constituent encoders that can take advantage of the interleaver structure to achieve a low error floor. Simulation results for the designed bit-interleaved system show better performance than bit-interleaved performance reported in the literature. The symbol-interleaved system though achieves an earlier convergence, especially with an increased number of decoder iterations, but at the cost of a slightly higher error floor.},
type={4},
author = {Fragouli, C. and Wesel, R. D.},
journal = {GlobeCom},
pages = {pages 931--935},
tags = {channel_coding},
title = {Bit vs. {Symbol} {Interleaving} for {Parallel} {Concatenated} {Trellis} {Coded} {Modulation}},
volume = {vol. 2},
year = {2001}
}
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