MIMO-OFDM non-regenerative relay channel estimation using compressed sensing

Author

Akbarpour-Kasgari, Abbas ; Ardebilipour, Mehrdad ; Afghah, Fatemeh

Author_Institution

Sch. of Electr. & Comput. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran

fYear

2015

fDate

18-20 March 2015

Firstpage

1

Lastpage

5

Abstract

In this paper, a compressed sensing (CS)-based channel estimation technique is developed for MIMO-OFDM networks with Amplify-and-Forward (AF) relaying method. The impacts of multiple antennas as well as existing a direct link between source and destination are studied. The proposed CS-based method utilizes the inherent sparse characteristic of wireless channel and improves the bandwidth efficiency as it requires a few measurement units for channel estimation. The simulation results show that the proposed CS-based method outperforms the Least Squares (LS)-based channel estimation.

Keywords

MIMO communication; OFDM modulation; amplify and forward communication; channel estimation; compressed sensing; relay networks (telecommunication); wireless channels; AF relaying method; CS-based channel estimation technique; MIMO-OFDM networks; MIMO-OFDM nonregenerative relay channel estimation; amplify-and-forward relaying method; bandwidth efficiency; compressed sensing-based channel estimation technique; wireless channel; OFDM; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Sciences and Systems (CISS), 2015 49th Annual Conference on

Conference_Location

Baltimore, MD

Type

conf

DOI

10.1109/CISS.2015.7086833

Filename

7086833