| The development of Turbo codes bring about more and more study on channelcoding. In recent years, many achievements have been obtained in not only codingtheory field but also coding applications. Low-rate code is one of the research emphases.Turbo codes and Multiple Turbo Codes (MTCs) are one of the most important methodsin construct the low-rate codes. In order to obtain good performance, interweavers inMTCs should be different. And the design of different interweaver is nontrivial.Therefore, it is of great significance to research and design a coding structure with lowcomplexity and good BER performance. A multiple parity concatenation codingstructure (MPCCs) is proposed and the theory the theoretical and application research isprovided. The main works are summarized as follows:1. A Turbo-like parity concatenation coding structure-multiple parity concatenationcoding structure (MPCCs) is proposed in this dissertation. In this structure only theparity information is used to produce the next parity information, and one kind ofcomponent codes and interweaver can be used in each concatenation. Both theoreticaland simulation analysis show that parity concatenation encoding structure can obtaincomparative performance with Turbo codes.2. Firstly, the same packet transmission system based on channel pre-coding isproposed, analysis and simulation results show that this system has better performancethan channel coding only. Then proposed an uncompressed HD image system based onMPCCs by analysis the characteristic of uncompressed HD image and combines thesame packet transmission system. The simulation results show that uncompressed HDimage system based on MPCCs could improve the recover quality of images. |
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