Timing and delay spread estimation scheme in OFDM systems

被引：8

作者：

Wen, Jyh-Horng ^{[1
]}

Lee, Shu-Hong ^{[2
,3
]}

Lee, Gwo-Ruey ^{[2
]}

Chang, Jin-Tong ^{[4
]}

机构：

[1] Tunghai Univ, Dept Elect Engn, Taichung 40704, Taiwan

[2] Natl Chung Cheng Univ, Inst Elect Engn, Chiayi, Taiwan

[3] Chien Kuo Technol Univ, Dept Elect Engn, Changhua, Taiwan

[4] Natl Chung Cheng Univ, Inst Commun Engn, Chiayi, Taiwan

来源：

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2008年 / 54卷 / 02期

关键词：

OFDM systems; subblock correlation; timing estimation; delay spread estimation;

D O I：

10.1109/TCE.2008.4560092

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a scheme for symbol timing estimation and delay spread estimation using subblock correlation is proposed in the OFDM systems. The subblock correlation between the cyclic prefix and data symbol is applied to estimate symbol timing and the length of delay spread. Under a multipath fading channel referred to the OFDM multipath channel model in the standard of IEEE 802.11a/g WLAN, the results show that performance with the proposed scheme is better than that with Beek's scheme. In addition, the length of the delay spread could be estimated in the proposed scheme. Hence, in order to increase the bandwidth efficiency, the length of cyclic prefix could be adaptively assigned in the OFDM system(1).

引用

页码：316 / 320

页数：5

共 50 条

[21] Delay-spread estimation using cyclic-prefix in wireless OFDM systems
Athaudage, CRN
Jayalath, ADS
2003 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOL IV, PROCEEDINGS: SIGNAL PROCESSING FOR COMMUNICATIONS SPECIAL SESSIONS, 2003, : 668 - 671
[22] Delay-spread estimation using cyclic-prefix in wireless OFDM systems
Athaudage, CRN
Jayalath, ADS
IEE PROCEEDINGS-COMMUNICATIONS, 2004, 151 (06): : 559 - 566
[23] A novel blind delay spread estimation using frequency correlation for wireless OFDM systems
Doukas, Athanasios
Kalivas, Grigorios
MOBILE COMPUTING AND WIRELESS COMMUNICATION INTERNATIONAL CONFERENCE, PROCEEDINGS, 2007, : 175 - 178
[24] Symbol Timing Offset Estimation Scheme for OFDM Systems Based on Power Difference Measurements
Younis, S.
Al-Dweik, A.
Hazmi, A.
Tsimenidis, C. C.
Sharif, B. S.
2010 IEEE 21ST INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC), 2010, : 927 - 932
[25] Doppler spread estimation for wireless OFDM systems
Yücek, T
Tannious, RMA
Arslan, H
2005 IEEE SARNOFF SYMPOSIUM ON ADVANCES IN WIRED AND WIRELESS COMMUNICATION, 2005, : 232 - 235
[26] Pilot-Aided Multipath Delay Spread Approximation for MMSE Channel Estimation in OFDM Systems
Chiang, Hsiao-Lan
Kuo, Ping-Heng
Ting, Pang-An
Shih, Wen
2010 IEEE 10TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS (ICSP2010), VOLS I-III, 2010, : 1488 - +
[27] On Timing and Frequency Offset Estimation for OFDM Systems
Guo Yi
Liu Gang
Ge Jianhua
Zhang Wujun
2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31, 2008, : 964 - 967
[28] A novel timing estimation method for OFDM systems
Park, B
Cheon, H
Kang, C
Hong, D
GLOBECOM'02: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-3, CONFERENCE RECORDS: THE WORLD CONVERGES, 2002, : 269 - 272
[29] A novel timing estimation algorithm for OFDM systems
Liu, Deliang
Wang, Jinlong
2006 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS PROCEEDINGS, VOLS 1-4: VOL 1: SIGNAL PROCESSING, 2006, : 1170 - +
[30] On timing and frequency offset estimation in OFDM systems
Reddy, AK
Ajeet
Mahanta, A
Bora, PK
TENCON 2004 - 2004 IEEE REGION 10 CONFERENCE, VOLS A-D, PROCEEDINGS: ANALOG AND DIGITAL TECHNIQUES IN ELECTRICAL ENGINEERING, 2004, : C153 - C156

← 1 2 3 4 5 →