Comdined Turbo Block Decoding and Equalisation

Decoding of Block Turbo Codes

Turbo equalisation for the Enhanced GPRS system

The iterative receiver structures can often improve the performance with a reasonable level of complexity. In this paper, we study iterative equalisation technique, i.e., turbo equalisation (TE), which enables to improve the performance by signal processing means in the receiver – without altering any other part of the system. TE is based on the feedback information from the channel decoder int...

Near-optimum decoding of product codes: block turbo codes

This paper describes an iterative decoding algorithm for any product code built using linear block codes. It is based on soft-input/soft-output decoders for decoding the component codes so that near-optimum performance is obtained at each iteration. This soft-input/soft-output decoder is a Chase decoder which delivers soft outputs instead of binary decisions. The soft output of the decoder is a...

Bounds on the error probability ofml decoding for block and turbo-block codes

The performance of either structured or random turbo-block codes and binary, systematic block codes operating over the additive white Gaussian noise (AWGN) channel, is assessed by upper bounds on the error probabilities of maximum likelihood (ML) decoding. These bounds on the block and bit error probability which depend respectively on the distance spectrum and the input-output weight enumerati...

Turbo Equalisation: Implementation and Importance for Communication Systems

This paper discusses a recent iterative equalisation technique called “turbo equalisation”. We specifically aim to develop a general model for a coded interleaved transmission system with a channel with memory. We show the general detection/decoding procedure before elaborating on a new alternative interference canceler based method to reduce complexity. We use examples from DS/CDMA, and ISI ch...