Dissertation > Excellent graduate degree dissertation topics show
Researches on Joint Source-Channel Coding in Wireless Channel
Author: WangNing
Tutor: WangYiMing
School: Suzhou University
Course: Communication and Information System
Keywords: Source channel coding Cumulative decoding Turbo codes Unequal Error Protection
CLC: TN911
Type: Master's thesis
Year: 2008
Downloads: 213
Quote: 2
Read: Download Dissertation
Abstract
|
Information-source coding and channel coding of the conventional communication system is separated , isolated design often lead to low efficiency of the transmission of information . The actual communication system , to the case given the characteristics of the channel , the joint design of source coding and channel coding can get better performance gain . In this regard , the paper has done some useful exploration : in-depth study of traditional embedded in the source coding , channel coding joint coding , found error diffusion defect , and proposed a kind of accumulators decoding method , change the instant , isolated, by codeword decision decoding ideas, according to the statistical properties of the received signal in the period of time , to make the overall decoded judgment , to obtain a lower symbol error rate ; the probability density of the reception side data and jointly encoded function to quantify , select the appropriate retention path number , under the premise of ensuring error performance , reduce the complexity of the algorithm , conducive to hardware implementation . Study Throughout its multi-rate compression algorithm using wavelet transform , inseparable from the use of wavelet transform brings various frequency components wavelet coefficients with and with joint channel design characteristics of the source coding , based on wavelet tree search method improved wavelet image compression algorithm to improve the weaknesses of the original algorithm is difficult to resist interference , a Turbo code based not designed according to the characteristics of the source coding stream codec program, such as error protection through a noisy channel can be obtained in a higher compression ratio the higher the peak signal - to - noise ratio .
|
Related Dissertations
- Research on HARQ Technique and Its Application in 1xEV-DO,TN929.5
- A Joint Source-Channel Coding Scheme Based on Unequal Error Protection of H.264,TN919.81
- Ressearch of Joint Source-Channel Coding Based on H.264 and Rate-compatible Punctured Turbo Coding,TN911.2
- Applications of Raptor Codes in Video Communications,TN919.8
- STBC-OFDM System Based on Joint Source Channel Matching,TN919.3
- Research on Encoding and Decoding for Turbo Codes in Mobile Communication,TN929.5
- The Research, Application and Implementation of Distribute Source Coding,TN911.21
- SVC unequal error protection in wireless channel,TN919.81
- Channel Coding Technique in COFDM Transmission System for Digital Video Broadcasting,TN941.3
- Research on the Turbo Code in the LTE System,TN929.5
- Research on Achieving Information Hiding of BMP Image Based on Turbo Codes,TN919.8
- Applications of Channel Coding Technologies in PCM/FM Reentry Telemetry System,TP873
- The CTC codec algorithm analysis and design in the WiMAX system,TN911.22
- Turbo codes FPGA-based implementation,TN762
- GSM-R in the electrified catenary line noise environment analysis of error control and interrupt,U225
- Research and Implementation of Digtial Image Encryption Algorithm Based on Turbo Code,TN918.82
- Research on WiMAX Channel Codec Technology Based on Virtual Radio,TN911.22
- Design and Optimization of Encoder and Decoder of Turbo Code Based on 802.16d/e Standards,TN925.93
- The Research of Coded Modulation Technology Based on Turbo Code,TN911.22
- Research on a New Type of Concatenated Codes,TN911.22
- Iterative Algorithm of Carrier Recovery in Multilevel Turbo Coded Modulation System,TN911.2
CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication theory
© 2012 www.DissertationTopic.Net Mobile
|