Efficient arctangent processor design for the frequency offset estimation of IEEE 802.11 wireless LAN system

被引：0
|
作者：
Kim, Taekyu [1 ]
Park, Sin-Chong [1 ]
机构：
[1] Informat & Commun Univ, Sch Engn, 119,Munjiro, Taejon 305732, South Korea
来源：
6TH WSEAS INT CONF ON INSTRUMENTATION, MEASUREMENT, CIRCUITS & SYSTEMS/7TH WSEAS INT CONF ON ROBOTICS, CONTROL AND MANUFACTURING TECHNOLOGY, PROCEEDINGS | 2007年
关键词：
arctangent; WLAN; OFDM; frequency offset;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a hardware design of an arctangent processor for the OFDM-based wireless LAN system. The arctangent processor is required in most OFDM-based communication system to estimate the frequency offset. The proposed arctangent processor does not require the division value of imaginary/real for the input argument, and uses these two values, respectively, to look up the tangent ROM table. We reduce the tangent look-up table size to one eighth of 2 pi rad using the imaginary and real component exchange method for memory size and operation speed. Consequently, the designed arctangent process for wireless LAN system takes seven clocks to evaluate an arctangent value and has the resolution of 2 pi/512 rad. The maximum absolute error of this arctangent hardware is 5.75e-3 rad (0.33 degrees) comparing to mathematical result.
引用
收藏
页码：39 / +
页数：2
相关论文
共 50 条
  • [1] Arctangent processor design for the frequency offset estimation of ieee 802.16D Wirelessman-OFDM system
    Kim, Taekyu
    Park, Sin-Chong
    2007 IEEE WORKSHOP ON SIGNAL PROCESSING SYSTEMS, VOLS 1 AND 2, 2007, : 199 - 203
  • [2] Synchronization for carrier frequency offset in wireless LAN 802.11a system
    Peng, CS
    Wen, KA
    5TH INTERNATIONAL SYMPOSIUM ON WIRELESS PERSONAL MULTIMEDIA COMMUNICATIONS, VOLS 1-3, PROCEEDINGS, 2002, : 1083 - 1087
  • [3] A Large Frequency Offset Estimation Algorithm for IEEE 802.11a System
    Han Qingwen
    Zhang Peng
    Zhang Youfang
    2009 WRI INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND MOBILE COMPUTING: CMC 2009, VOL I, 2009, : 316 - 320
  • [4] Performance comparison of several frequency offset estimate schemes for IEEE 802.11a wireless-LAN
    Zhang, HB
    APOC 2002: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; WIRELESS AND MOBILE COMMUNICATIONS II, 2002, 4911 : 333 - 338
  • [5] Frame and frequency offset estimation for OFDM system in wireless LAN environment
    Wei, B
    Wu, SQ
    APOC 2003: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; WIRELESS COMMUNICATIONS AND NETWORKS, 2003, 5284 : 229 - 235
  • [6] Low power implementation of FFT/IFFT processor for IEEE 802.11 a wireless LAN transceiver
    Yeo, DLG
    Wang, ZJ
    Zhao, B
    He, YJ
    ICCS 2002: 8TH INTERNATIONAL CONFERENCE ON COMMUNICATIONS SYSTEMS, VOLS 1 AND 2, PROCEEDINGS, 2002, : 250 - 254
  • [7] Carrier frequency offset synthetical estimation for OFDM system in wireless LAN environment
    Lee, Y
    Lee, SJ
    Xu, ZJ
    AOC 2002: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; APPLICATIONS OF BROADBAND OPTICAL AND WIRELESS NETWORKS, 2002, 4912 : 86 - 92
  • [8] Frequency offset estimation and correction in the IEEE 802.11a WLAN
    Sourour, E
    El-Ghoroury, H
    McNeill, D
    VTC2004-FALL: 2004 IEEE 60TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-7: WIRELESS TECHNOLOGIES FOR GLOBAL SECURITY, 2004, : 4923 - 4927
  • [9] An adaptive multirate IEEE 802.11 wireless LAN
    Wu, JLC
    Liu, HH
    Lung, YJ
    15TH INTERNATIONAL CONFERENCE ON INFORMATION NETWORKING, PROCEEDINGS, 2001, : 411 - 418
  • [10] Design and implementation of a MAC controller for the IEEE802.11 wireless LAN
    Iliopoulos, M
    Maniatopoulos, A
    Antonakopoulos, T
    INTERNATIONAL JOURNAL OF ELECTRONICS, 2001, 88 (03) : 271 - 285
12345