A Union Bound Approximation for Rapid Performance Evaluation of Punctured Turbo Codes

— In this paper, we present a simple technique to approximate the performance union bound of a punctured turbo code. The bound approximation exploits only those terms of the transfer function that have a major impact on the overall performance. We revisit the structure of the constituent convolutional encoder and we develop a rapid method to calculate the most significant terms of the transfer function of a turbo encoder. We demonstrate that, for a large interleaver size, this approximation is very accurate. Furthermore, we apply our proposed method to a family of punctured turbo codes, which we call pseudo-randomly punctured codes. We conclude by emphasizing the benefits of our approach compared to those employed previously. We also highlight the advantages of pseudo-random puncturing over other puncturing schemes.

• Type: Conference
• Year: 2007
• Where: CISS
• Authors: Ioannis Chatzigeorgiou, Miguel R. D. Rodrigues, Ian J. Wassell, Rolando A. Carrasco
• Keywords: CISS 2007, Constituent Convolutional Encoder, Information Management, Punctured Turbo Codes, Transfer Function