Analysis and Design of Concatenated Codes

Convergence Analysis of a New Class of Flexible Hybrid Concatenated Codes

This paper focuses on a new class of flexible hybrid concatenated codes which are able to achieve any desired bit error rate performance between that of a parallel and serial concatenated convolutional code. The main contribution of this paper is a convergence analysis of the decoder, which is facilitated by an alternative representation of the code structure and an extrinsic information (EXIT)...

Serial Concatenated Convolutional Codes Design and Analysis

Serial Concatenated Convolutional Codes (SCCC) also named Turbo Codes, obtained with different constituent trellis codes are presented with a simple and quick mode of data interleaving. A SCC code has higher error-correction performances than the constituent codes. Optimal convolutional codes are deduced for SCCC. A comparison of the SCCC performances is made using weight enumerating functions.

Convergence Analysis and Design of Multiple Concatenated Codes

Analysis, Design, and Iterative Decoding of Double Serially Concatenated Codes with Interleavers

A double serially concatenated code with two interleaves consists of the cascade of an outer encoder, an interleaver permuting the outer codeword bits, a middle encoder, another interleaver permuting the middle codeword bits and an inner encoder whose input words are the permuted middle codewords. The construction can be generalized to h cascaded encoders separated by h – 1 interleavers, where ...

Design of “Multiple–Turbo–Codes” with Transfer Characteristics of Component Codes

For the construction of low rate turbo– codes, the concept of multiple parallel concatenated codes, i.e. the “multiple–turbo–code” has been successfully employed e.g. in [13, 16]. Analysis of this structure has been done via simulations [16] or the analysis of equivalent coding schemes [13]. In this paper we extend the method of EXIT charts [5], that has been applied to multiple–turbo–codes con...