Search for dissertations about: "low-density parity-check convolutional code"
Showing result 1 - 5 of 7 swedish dissertations containing the words low-density parity-check convolutional code.
-
1. Towards a Theory of Codes for Iterative Decoding
Abstract : Channel codes in combination with iterative decoding techniques are a both powerful and efficient method to protect data against disturbances in digital communication systems. This thesis deals with various code constructions for block-wise and continuous transmission that have the potential to achieve low bit error rates with iterative decoding, even when operating close to the Shannon limit. READ MORE
-
2. Iteratively Decodable Convolutional Codes: Analysis and Implementation Aspects
Abstract : This thesis addresses the theory and implementation aspects of iteratively decodable codes. Iteratively decodable codes include, in particular, Gallager's regular low-density parity-check (LDPC) codes, Tanner's generalized LDPC (GLDPC) codes, turbo codes due to Berrou et. al. and expander codes. READ MORE
-
3. Codes on Graphs and More
Abstract : Modern communication systems strive to achieve reliable and efficient information transmission and storage with affordable complexity. Hence, efficient low-complexity channel codes providing low probabilities for erroneous receptions are needed. READ MORE
-
4. On the Construction and Analysis of Iteratively Decodable Codes
Abstract : Iterative decoding methods allow efficient decoding of long codes that are composed of smaller component codes. As a result reliable communication can be achieved with low decoding complexity even for rates close to Shannon capacity. This makes iteratively decodable codes a very attractive object of study in modern coding theory. READ MORE
-
5. Analysis and Design of Spatially-Coupled Codes with Application to Fiber-Optical Communications
Abstract : The theme of this thesis is the analysis and design of error-correcting codes that are suitable for high-speed fiber-optical communication systems. In particular, we consider two code classes. The codes in the first class are protograph-based low-density parity-check (LDPC) codes which are decoded using iterative soft-decision decoding. READ MORE