상세정보
학술대회
Design of Synchronization in OFDMA/TDD based Wibro System
- 발행일
- 200709
- 출처
- International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2007, pp.1-5
- 초록
- The issues of time and frequency synchronization in OFDM system are quite essential to preserve the orthogonality among subcarriers, not to produce ICI. This paper deals with the efficient design of time and frequency synchronization in 802.16e and WiBro system which uses preamble sequence. We present the implementation issues and proper algorithm of the synchronization blocks such as coarse and fine timing synchronization, and fractional and integer frequency offset compensation. A technique to mitigate the false alarms of frame timing acquisition is proposed, which is added to verification process using the results of cell search. Also, we present the frequency offset compensation process that compensates separate estimation result of fractional and integer frequency offset. ©2007 IEEE.
- KSP 제안 키워드
- Cell search, False Alarm, Frequency offset compensation, Integer Frequency Offset, OFDM systems, Preamble Sequence, Timing acquisition, efficient design, time and Frequency synchronization, time frequency(T-F), timing synchronization