Earticle

초록

영어

OFDM technology has become the core technology of the next generation mobile communication system because of the high bandwidth efficiency, the strong ability to resist inter-carrier interference and anti-channel interference. However, because OFDM system is a multicarrier modulation system, the system will be very sensitive to its synchronization errors. Synchronization estimation is an important part of the OFDM system. Based on the research of Schmidl & Cox and Minn synchronization algorithms, this paper proposed an improved timing synchronization algorithm which adopted the training sequence, and the timing synchronization estimation function has been optimized for this improved algorithm. The peak platform issue of Schmidl & Cox algorithm, the no sharp peak issue of Minn (1) algorithm and the vice peak issue of Minn (2) algorithm were eliminated based on the improved algorithm. The simulation results showed that the timing judgment curve of the improved algorithm had a very sharp peak at the timing synchronization position. Compared with the conventional algorithm, the timing synchronization performance of the improved algorithm was better. The overall performance of OFDM system was improved.

목차

Abstract
 1. Introduction
 2. Synchronous Model of OFDM System
 3. The Conventional Timing Synchronization Algorithm Simulation
  3.1. The Study of Schmidl & Cox Algorithm
  3.2. The Study of Minn Algorithm
 4. The Study of Improved Timing Synchronization Algorithm Simulation
 5. Conclusion
 Acknowledgements
 References

키워드

저자

• Jing Dai [ College of Information Science and Engineering, Shenyang Ligong University, Shenyang,110159,China ]
• Yanmei Wang [ College of Information Science and Engineering, Shenyang Ligong University, Shenyang,110159,China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Future Generation Communication and Networking

• 간기

  격월간

• pISSN

  2233-7857

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605