Dissertation > Excellent graduate degree dissertation topics show

Research on Bandwidth Efficient Coding and Modulation

Author: TangXing
Tutor: LiuJian
School: Huazhong University of Science and Technology
Course: Electronics and Communication Engineering
Keywords: Turbo TCM BICM Iterative Decoding
CLC: TN761
Type: Master's thesis
Year: 2012
Downloads: 15
Quote: 0
Read: Download Dissertation

Abstract


As technology advances, people are increasingly high performance requirements ofthe communication system. Wireless channel susceptible to the influence of noise,interference and other channel factors, but also due to the dynamic changes of the user’smobile channel, these factors are still with time changes randomly. Therefore, the channelis the key to ensure the correctness of the communicaton system in the complex channelenvironments. Now there is a lot of good channel coding scheme, such as Turbo codes,LDPC codes. The spectral efficiency of binary Turbo code based on the BPSK modulationmode is not high and the traditional channel coding by increasing the redundancy toimprove error correction capability, which will inevitably cause bandwidth expansion,taking up more spectrum resources. This is not allowed clearly in the environment ofresources more valuable.1982, Ungerboeck.G proposed the idea of trellis coded modulation(TCM) in hispaper. This way consider the modulation and coding as a whole module to achieve theoptimization of communication system performance. It obtain the channel gain byimproving the equipment complexity, not by reducing the bandwidth efficiency and powerefficiency. Trellis coded modulation techniques are applicable to the additive whiteGaussian noise channel. Later scholars have proposed that the bit-interleaved codedmodulation(BICM), the performance of the coded modulation schemes performance inRayleigh fading channel better than trellis coded modulation.In this paper, we proposed the Turbo-TCM coded modulation scheme by combiningthe Turbo code and Trellis Coded Modulation based on the above-mentioned mature. Onthis basis, we prosed the Turbo-MTCM coded modulation scheme, to enhance theperformance of the traditional Turbo-TCM coded modulation schemes in additive whiteGaussian noise channel. In the chapter4, we have combined the based on iterativedecoding of BICM and Turbo codes to form Turbo-BICM-ID coded modulation scheme.Meanwhile, we use double Binary Turbo code to instead of the traditional convolutionalcode encoder, to enhance the tradition of BICM-ID coded modulation schemes’sperformance under Rayleigh fading channel.

Related Dissertations

  1. The Matlab Implementation of Joint Source and Channel Decoding of Turbo Code Based on Meanmatch,TN911.22
  2. Study on Channel Coding Algorithm in IEEE802.16e,TN911.22
  3. Research on TCM and BICM Schemes of the Coded Modulation Technology,TN911.22
  4. Integrative treatment of elderly patients with hypertension TCM syndromes and quality of life,R544.1
  5. The Antioxidative Efficient Component Recognition for Curcuma Longa L. Based on the Quality Control Pattern of Constituent Knock-out/Knock-in,R285
  6. Study of An Embedded Chinese Medical Therapeutic Apparatus,R197.39
  7. Research on Relationship between Different TCM Dialectical Type and Associate with Sex Hormones and Risk Factors of Cardiovascular Disease in Perimenopausal Women of Hypertension,R259
  8. Hydropower units Throw Measurement and Fault Analysis System Design and Implementation,TM312
  9. Research on WiMAX Channel Codec Technology Based on Virtual Radio,TN911.22
  10. The Researches of Random Row-column Cyclic Shift Interleaver and Quantum Interleaver,TN911.22
  11. Design and Implementation of Parallel LTE Turbo Decoder,TN929.5
  12. High-Speed All-Optical Signal Processing Based on Semiconductor Optical Amplifier,TN911.74
  13. Improved QC-LDPC code design and FPGA implementation,TN911.2
  14. Research on BICM-ID and Its Application on Cooperative Communication,TN911.2
  15. Ruangan poultice treatment of primary biliary cirrhosis clinical research,R259
  16. Reconfigurable Design of LDPC Decoder,TN911.22
  17. Design and Implemetation of Concatenated System Based on CPM and LDPC,TN911.2
  18. Key Technique and Applications of Error Correction Coding in Broadband Digital Communication Systems,TN911.2
  19. Fingerprint image processing and pediatric pneumonia Correlation of TCM,R272
  20. Investigate the Traditional Chinese Medicine Patterns of 115 Cases of Henoch-Schonlein Purpura Nephritis and Research on Related Factors,R272
  21. Children with multiple tics Law of TCM,R272

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Modulation technique and the modulator,demodulator and the demodulator > Modulation technique and the modulator
© 2012 www.DissertationTopic.Net  Mobile