Near-capacity turbo trellis coded modulation design based on EXIT charts and union bounds

Ng, Soon Xin, Alamri, Osamah, Li, Yonghui, Kliewer, Jorg and Hanzo, Lajos (2008) Near-capacity turbo trellis coded modulation design based on EXIT charts and union bounds. IEEE Transactions on Communications, 56, (12), 2030 -2039 . (doi:10.1109/TCOMM.2008.06039522).


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Bandwidth efficient parallel-concatenated Turbo Trellis Coded Modulation (TTCM) schemes were designed for communicating over uncorrelated Rayleigh fading channels. A symbol-based union bound was derived for analysing the error floor of the proposed TTCM schemes. A pair of In-phase (I) and Quadrature-phase (Q) interleavers were employed for interleaving the I and Q components of the TTCM coded symbols, in order to attain an increased diversity gain. The decoding convergence of the IQ-TTCM schemes was analysed using symbol-based EXtrinsic Information Transfer (EXIT) charts. The best TTCM component codes were selected with the aid of both the symbol-based union bound and non-binary EXIT charts, for designing capacity-approaching IQ-TTCM schemes in the context of 8PSK, 16QAM, 32QAM and 64QAM modulation schemes.

Item Type: Article
ISSNs: 0090-6778 (print)
Keywords: Decoding convergence, distance spectrum, code design, EXIT charts, Turbo Trellis Coded Modulation, union bound.
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 267115
Date Deposited: 16 Feb 2009 13:46
Last Modified: 27 Mar 2014 20:12
Further Information:Google Scholar
ISI Citation Count:6

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