Improved Channel Estimation Based on Sorted GAIC for OFDM Systems in Sparse Multipath Channels

被引：0

作者：

Sheng, Bin ^{[1
]}

Zhu, Pengcheng ^{[1
]}

You, Xiaohu ^{[1
]}

Chen, Lan ^{[2
]}

机构：

[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China

[2] DoCoMo Beijing Commun Labs Co Ltd, Beijing 100080, Peoples R China

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2010年 / E93B卷 / 01期

基金：

美国国家科学基金会;

关键词：

channel estimation; GAIC; OFDM; sparse multipath channels; FADING CHANNELS;

D O I：

10.1587/transcom.E93.B.192

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 propose a novel sparse channel estimation method for orthogonal frequency division multiplexing (OFDM) systems. The proposed method uses a discrete Fourier transform (DFT)-based technique for channel estimation and a sorted generalized Akaike information criterion (GAIC) to estimate the channel length and tap positions. Simulation results demonstrate that an improved channel estimation performance is obtained due to the reduction of signal space.

引用

页码：192 / 194

页数：3

共 7 条

[1] OFDM channel estimation by singular value decomposition [J].

Edfors, O ;

Sandell, M ;

van de Beek, JJ ;

Wilson, SK ;

Borjesson, PO .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1998, 46 (07) :931-939

[2] Channel order and RMS delay spread estimation with application to AC power line communications [J].

Li, HB ;

Liu, DX ;

Li, J ;

Stoica, P .

DIGITAL SIGNAL PROCESSING, 2003, 13 (02) :284-300

[3] Robust channel estimation for OFDM systems with rapid dispersive fading channels [J].

Li, Y ;

Cimini, LJ ;

Sollenberger, NR .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1998, 46 (07) :902-915

[4] Improving channel estimation in OFDM systems for sparse multipath channels [J].

Raghavendra, MR ;

Giridhar, K .

IEEE SIGNAL PROCESSING LETTERS, 2005, 12 (01) :52-55

[5] Pilot-based channel estimation for OFDM systems by tracking the delay-subspace [J].

Simeone, O ;

Bar-Ness, Y ;

Spagnolini, U .

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2004, 3 (01) :315-325

[6]

VANDEBEEK JJ, 1995, P IEEE VEH TECHN C C, V2, P815

[7] Channel estimation for OFDM transmission in multipath fading channels based on parametric channel modeling [J].

Yang, BG ;

Ben Letaief, K ;

Cheng, RS ;

Cao, ZG .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2001, 49 (03) :467-479

← 1 →