Browse > Article

Joint Estimation Methods of Carrier Offset and Low-rank LMMSE Channel Estimation for MB-OFDM System  

Shin, Sun-Kyung (인하대학교 통신공학연구실)
Nam, Sang-Kyun (인하대학교 통신공학연구실)
Sung, Tae-Kyung (인하대학교 초광대역무선통신연구센터)
Kwak, Kyung-Sup (인하대학교 정보통신대학원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.12A, 2007 , pp. 1296-1302 More about this Journal
Abstract
In this paper, we propose joint estimation methods of carrier offset and channel estimation for MB-OFDM system with low complexity. The proposed methods estimate the channel by using low-rank LMMSE channel estimation which reduces the system complexity by applying the optimal number of rank to evaluate the frequency offset and additionally using the simple algorithm using the auto-correlation property of the estimated channel. We simulate the proposed algorithms under the IEEE 802.15 TG3a UWB channel model.
Keywords
MB-OFDM; UWB; ICI; LMMSE; SVD;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Richard VanNee, OFDM for Wireless Multimedia Communications, Artech House, Boston, NJ, 2000
2 Tevfik YU CEK et al, 'ICI Cancellation Based Channel Estimation for OFDM Systems', IEICE Trans. Commun., VOL. E88-B, No.5 May 2005
3 Louis L. Scharf, Statistical Signal Processing: Detection, Estimation, and Time Series Analysis. Reading, MA: Addision-Wesley, 1991
4 윤두영, 'UWB 기술 개요 및 주파수 정책동향,' 정보통신정책 제 18권 13호, 2006
5 Jeff Foerster, Sub-committee Chair, Channel Modeling Sub-comrniter Report, IEEE P802.1502/490r1-SG3a, Feb 2003
6 Jan-Jaap van de Beek, 'On Channel Estimation in OFDM Systems' IEEE VTC Vol 2, July 1995
7 Ove Edfors et al, 'OFDM Channel Estimation by Singular Value Decomposition,' IEEE Tran. Comm., Vol.46, No.7, July 1995
8 John G. Proakis, Digital Communications. 3rd end. Englewood Cliffs, NJ: Prentice-Hall, 1995
9 Anuj Batra et al. Texas Instruments et al, Multi-band OFDM Physical Layer Proposal for IEEE S02.15 Task Group 3a, IEEE P802.15-03/267r3, Mar 2004
10 라택수, 'OFDM 시스템에서 채널 추정 기법', 전자통신동향분석 제 21권 제 6호, 2006
11 Anuj Batra et al, 'Design of a Multiband OFDM System for Realistic UWB Channel Environments', IEEE Trans. Micro Vol. 53, No 9, Sept 2004
12 Monson H. Hayes, Statistical digital signal processing and modeling, John Wiley & Sons, 1996