In this work, an improved union bound on the performance of turbo codes is evaluated using a new union bound presented by Viterbi et al., (1998). The characterization of turbo code performance is provided considering both the fully-interleaved channel and correlated Rice slow-fading channel. A uniform interleaver is assumed: this strategy allows one to derive the average performance of the turbo coding scheme by analysis. Of interest is the improvement of the bound for values of E b/N0 near and below R0 (i.e., the “computational cutoff rate”), region where the conventional union bound becomes useless. This improvement allows a better estimate of the code performance in conjunction with the AWGN channel and with the fast-fading fully-interleaved channel. Moreover, it allows one to determine a tighter bound to the actual code performance as far as the slow fading Rician channel is concerned

Improved union bounds on turbo codes performance in the Ricianfading channel / Babich, F.; Montorsi, Guido; Vatta, F.. - 4:(1999), pp. 2178-2182. ((Intervento presentato al convegno Vehicular Technology Conference 1999. VTC 1999 - Fall. IEEE VTS tenutosi a Amsterdam nel 19 Sep 1999-22 Sep 1999 [10.1109/VETECF.1999.797324].

Improved union bounds on turbo codes performance in the Ricianfading channel

MONTORSI, Guido;
1999

Abstract

In this work, an improved union bound on the performance of turbo codes is evaluated using a new union bound presented by Viterbi et al., (1998). The characterization of turbo code performance is provided considering both the fully-interleaved channel and correlated Rice slow-fading channel. A uniform interleaver is assumed: this strategy allows one to derive the average performance of the turbo coding scheme by analysis. Of interest is the improvement of the bound for values of E b/N0 near and below R0 (i.e., the “computational cutoff rate”), region where the conventional union bound becomes useless. This improvement allows a better estimate of the code performance in conjunction with the AWGN channel and with the fast-fading fully-interleaved channel. Moreover, it allows one to determine a tighter bound to the actual code performance as far as the slow fading Rician channel is concerned
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1414293
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