Dissertation > Excellent graduate degree dissertation topics show

Technology Evolution and Performance Research of UMB Systems’ Physical Layer

Author: TuMing
Tutor: SangLin
School: Beijing University of Posts and Telecommunications
Course: Communication and Information System
Keywords: UMB Physical layer Technology evolution Performance Simulation
CLC: TN925
Type: Master's thesis
Year: 2010
Downloads: 16
Quote: 1
Read: Download Dissertation

Abstract


UMB, mobile broadband systems , 3GPP2 support the quasi four generations of wireless technology based on OFDMA technology , specifically optimized for wireless mobile environment and real-time applications . It inherited the EV-DO system adaptive modulation and coding , HARQ and QoS control mechanism , combined CDMA , TDM , QOFDMA , quasi- OFDMA , LDPC other advanced technology , the introduction of a MIMO, SDMA and Beamforming - based multi - antenna technology . UMB key technical aspects of the physical layer , to the redundant bit reversal interleaver having a good transformation of the performance of the channel conditions , and have a good effect on the resistance to fading propagation environment ; Tail- biting coding scheme , and the LDPC encoding can be largely avoided code spread sent in error occurred , and enhance the ability to resist noise interference signals in the dissemination process , improve system reliability ; hierarchical modulation technology enables operators to cover a larger area of ??small base stations to achieve low cost and high efficiency the use of high - quality business services; closed-loop MIMO multiple antenna technology , UMB system system capacity has been greatly improved . By using MATLAB to build simulation platform to assess the UMB system performance of the physical layer . AWGN channel convolution coding and Turbo codes can quickly packet error rate dropped below 10-3 ; fading channel , the performance of the UMB system FDD slightly better than TDD . In version UMB first edition protocol performance most times , the second version of the third edition of the performance fairly . For the TDD version in December 2008 , the performance of the physical layer and the second edition of the performance of the FDD quite . And WiMAX contrast , both AWGN channel and fading channels , UMB has a significant performance advantage compared to WiMAX . The the UMB system not only has a huge improvement compared to existing 3G technology and generation system compared to never strive . UMB key technology is the future direction of development of the mobile communication technology as 3GPP2 mobile communication standard to prepare for the post - 3G era . In the process of our own research and development of next - generation mobile communications system , the the UMB advanced technology is worth learning and reference .

Related Dissertations

  1. Regulative Effect of Ecological Factors on Maize Yield Performance and Its Models Establishment,S513
  2. The Research on the Transmission Performance of SCTP Over Multiple Paths,TN915.04
  3. Research and Implementation of Downlink Simulation Platform Based on the LTE Protocol,TN929.5
  4. The user scheduling MIMO cognitive and physical layer security technology research,TN925
  5. Axially segmented outer claw pole permanent magnet rotor motor performance analysis,TM351
  6. Aluminum die-casting thermal module design research,TG249.2
  7. HLA-based simulation system design and ultrashort wave communication research,TN925
  8. Study on the Application of Network Coding in Relay Cooperation Communication,TN92
  9. Design and Simulation of Sewage-Source Heat Pump System with Multilevel Sprinkling Heat Exchanger,TQ460.9
  10. Simulation Analysis on a Direct Expansion Solar Assisted Heat Pump Water Heater,TK513
  11. Investigate on VVT System Based on Diesel Fuel,TK423
  12. Physical-layer Differential Network Coding in TWRC,TN915.02
  13. Research on PCB Netlist Extraction Based on CBCT Images,TN41
  14. Research on the Design Method of Micro Vane Nozzle,V232.4
  15. Rolling performance simulation and optimization design software development,TP311.52
  16. Streetlight Monitoring communication system physical layer technology,TP277
  17. ZigBee Network Performance Simulation for Smart Campus and Reliable Path to Improved,TP393.18
  18. The Study of Network Security under the Perspective of Technology Evolution,TP393.08
  19. Application and Research about Access Network Technology in Heze China Unicom,TN915.6
  20. The OFDM Physical Layer Technology’s Algorithm Research and Implementation That Is Base on the IEEE 802.16e Standard,TN919.3
  21. Study on Technological Innovation Strategy of High-Tech Enterprises,F273.1

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications
© 2012 www.DissertationTopic.Net  Mobile