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Analysis of Efficient Time Synchronization Algorithms in OFDM WLAN

Published on November 2014 by Mohanraj.v, K.shoukath Ali
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International Conference on Innovations in Information, Embedded and Communication Systems
Foundation of Computer Science USA
ICIIECS - Number 3
November 2014
Authors: Mohanraj.v, K.shoukath Ali
57bd6ad4-d66a-44c8-952d-840673d5e37a

Mohanraj.v, K.shoukath Ali . Analysis of Efficient Time Synchronization Algorithms in OFDM WLAN. International Conference on Innovations in Information, Embedded and Communication Systems. ICIIECS, 3 (November 2014), 25-27.

@article{
author = { Mohanraj.v, K.shoukath Ali },
title = { Analysis of Efficient Time Synchronization Algorithms in OFDM WLAN },
journal = { International Conference on Innovations in Information, Embedded and Communication Systems },
issue_date = { November 2014 },
volume = { ICIIECS },
number = { 3 },
month = { November },
year = { 2014 },
issn = 0975-8887,
pages = { 25-27 },
numpages = 3,
url = { /proceedings/iciiecs/number3/18668-1482/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 International Conference on Innovations in Information, Embedded and Communication Systems
%A Mohanraj.v
%A K.shoukath Ali
%T Analysis of Efficient Time Synchronization Algorithms in OFDM WLAN
%J International Conference on Innovations in Information, Embedded and Communication Systems
%@ 0975-8887
%V ICIIECS
%N 3
%P 25-27
%D 2014
%I International Journal of Computer Applications
Abstract

OFDM receiver starts its work with detecting the received signals from the transmitter, thus to detect the received signal synchronization algorithm is worked out especially time synchronization algorithm. This paper deals with the design of Coarse time synchronization module for OFDM-based WLAN. The circuit is particularized for IEEE 802. 11a/g standards. The algorithms simulated are selected taking into account performance, hardware cost and latency. Our objective is to simulate Coarse time synchronization algorithm using modelsim 6. 3 tool through floating point representation and analyse it to have minimum hardware resources for the efficient receiver design. Thereby, comparing with fine time synchronization.

References
  1. IEEE Standard 802. 11a, Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: High-speed Physical Layer in the 5 GHz Band, December, 1999.
  2. IEEE 802. 11g: Wireless LAN Specifications: Further Higher Data Rate Extension in the 2. 4 GHz Band, June, 2003.
  3. M. J. Canet, F. Vicedo, J. Valls, V. Almenar, Design of a Digital Front–end Transmitter for OFDM-WLAN Systems Using FPGA, ISCCSP 2004, Hammamet,Tunisia, 2004.
  4. J. Heiskala, J. Terry, OFDM Wireless LANs: A Theoretical and Practical Guide,SAMS Publishing, 2001.
  5. T. Schmidl, D. Cox, Robust frequency and timing synchronization for OFDM,IEEE Transactions on Communications 45 (12) (1997).
  6. J. Melbo, P. Schramm, Channel Models for HIPERLAN/2 in Different Indoor Scenarios, 3ERI085B, HIPERLAN/2 ETSI/BRAN Contribution, 1998.
  7. Chu Yu, Mao-Hsu Yen, Pao-Ann Hsiung, Sao-Jie Chen. Low-Power 64-point Pipeline FFT/IFFT Processor for OFDM Applications. IEEE transactions on consumer electronics, Vol. 57, No. 1, 2011.
  8. Sekchin Chang, B. Kelley, Time synchronization for OFDM-based WLAN systems, Electronics Letters 39 (13) (2003) 1024–1026.
  9. Yik-Chung Wu, Kun-Wah Yip, Tung-Sang Ng, Erchin Serpedin, Maximum Likelihood symbol synchronization for IEEE 802. 11a WLANs in unknown frequency-selective fading channels.
Index Terms

Computer Science
Information Sciences

Keywords

Coarse Time Synchronization Algorithm Floating Point Models Wlan Receiver fine Time Synchronization.