Browse > Article

Synchronization Algorithm for Wireless LAM Using OFDM Transmission Technique  

김장욱 (동양공업전문대학 전자과)
유기희 (텔슨전자 중앙연구소)
오창헌 (한국기술교육대학교 정보기술공학부)
조성준 (한국항공대학교 전자ㆍ정보통신ㆍ컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.2A, 2004 , pp. 157-165 More about this Journal
Abstract
The synchronization algorithm of IEEE 802.11a WLAN(Wireless Local Area Network) has three consecutive processes, which use a short code training symbol, a long code training symbol and a pilot symbol respectively. But in using this synchronization processes, the actual embodiment has two problems. First, the synchronization process has the complex structure using a long code training symbol and a pilot symbol. Second, since the long training symbol is only compensated with the offset correction coefficient, it can not be trusted perfectly. If the equalizer coefficient is obtained in this unstable period, the system performance is degraded. In particular, the system performance becomes worst in case of the 54 Mbps transmission system using the maximum length of data. In this paper, the new algorithm is proposed which can resolve the embodiment complexity of synchronization processes and structural defect, and also it is confirmed by simulation.
Keywords
OFDM; WLAN; Synchronization; Transmission system;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Analysis and simulation of a digital mobile channel using orthogonal division multiplexing /
[ L.J.Cimini ] / IEEE Trans. on Comm.   DOI
2 A new OFDM standard for high rate wireless LAN in the 5 GHz band /
[ R. Van Nee ] / Proc. IEEE VTC'99
3 /
[ 김재석;조용수;조중휘(공저) ] / 이동통신용 모뎀의 VLSI 설계 CDMA/OFDM/MC-CDMA 모뎀
4 An introduction to IEEE 802.11 wireless LANs /
[ S.V.Saliga ] / RFIC Symposium
5 Low-overhead, low-complexity burst synchronization for OFDM /
[ T.M.Schmidl;D.C.Cox ] / Proc. IEEE ICC
6 Transmission technique for digital terrestrial TV broadcasting /
[ H.Sari;G.Karam;I.J.Claude ] / IEEE Comm. Mag.   DOI   ScienceOn
7 /
[ R. Van Nee;R.Prasad ] / OFDM for wireless multimedia communications
8 /
[ W.C.Jakes(Ed.) ] / Microwave Mobile Communication
9 Carrier frequency offset estimation for OFDM-based WLANs /
[ J.Li;G.Liu;G.B.Giannakis ] / IEEE Signal Processing Letters   DOI   ScienceOn
10 Multicarrier modulation for data transmission: an idea whose time has come /
[ J.A.C.Bingham ] / IEEE Comm. Mag.   DOI   ScienceOn
11 Wireless LAN Medium Access Control(MAC) and Physical Layer (PHY) specification: High speed physical layer in the 5 GHz band /
[] / IEEE 802.11a
12 Data transmission by frequency division multiplexing using the discrete fourier transform /
[ S.B.Weinstein;P.M.Ebert ] / IEEE Trans. on Comm.   DOI   ScienceOn