Pilot patterns for OFDM communication systems in a fast time-varying channel

被引:3
作者
Lim, YJ [1 ]
Hyun, DS
Park, SK
机构
[1] Hanyang Univ, Dept Elect & Comp Engn, Seoul, South Korea
[2] Panteck & Curitel, Seoul, South Korea
关键词
pilot patterns; time-varying channel; OFDM; channel estimation;
D O I
10.1093/ietcom/e89-b.1.243
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 letter, we focus on rearranged pilot patterns for channel estimation in a mobile communication system using Orthogonal Frequency Division Multiplexing (OFDM). The conventional pilot patterns for channel estimation in OFDM systems do not have robust characteristics in time-varying channels. In order to overcome this weakness of the conventional pilot patterns, we propose the pilot patterns with robust mobility for OFDM systems, which can achieve a good error performance in time-varying multi-path fading channels. Simulation results show that the bit error rate (BER) performances of the proposed pilot patterns are better than those of the conventional pilot patterns in fast time-varying fading channels under the same pilot density and data rate.
引用
收藏
页码:243 / 246
页数:4
相关论文
共 9 条
[1]  
[Anonymous], IEEE C VEH TECHN CHI
[2]   AN ANALYSIS OF PILOT SYMBOL ASSISTED MODULATION FOR RAYLEIGH FADING CHANNELS [J].
CAVERS, JK .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 1991, 40 (04) :686-693
[3]  
Dudgeon D. E., 1984, MULTIDIMENSIONAL DIG
[4]   Pilot patterns for channel estimation in DFDM [J].
García, MJFG ;
Zazo, S ;
Páez-Borrallo, JM .
ELECTRONICS LETTERS, 2000, 36 (12) :1049-1050
[5]  
Hanzo L., 2003, OFDM and MCCDMA for Broadband Multi-User Communications WLANs and Broadcasting
[6]  
Nee R. V., 2000, OFDM WIRELESS MULTIM
[7]  
NILSSON R, 1997, IEEE INT C PERS WIR, P71
[8]   SAMPLING AND RECONSTRUCTION OF WAVE-NUMBER-LIMITED FUNCTIONS IN N-DIMENSIONAL EUCLIDEAN SPACES [J].
PETERSEN, DP ;
MIDDLETON, D .
INFORMATION AND CONTROL, 1962, 5 (04) :279-&
[9]   Digital video broadcasting [J].
Reimers, U .
IEEE COMMUNICATIONS MAGAZINE, 1998, 36 (06) :104-110