A new full rate relaying method for 4G OFDM systems

Author

Osseiran, Afif ; Logothetis, Andrew

Author_Institution

Ericsson Res., Stockholm, Sweden

Volume

8

Issue

8

fYear

2009

fDate

8/1/2009 12:00:00 AM

Firstpage

3996

Lastpage

4003

Abstract

In this paper, we introduce a new transmit architecture that employs a 2-dimensional Fourier Transform and a 2-dimensional cyclic prefix (2D-CP) at the base station. In addition, the proposed scheme incorporates relay nodes that forward the received signals with one OFDM symbol delay. The new method introduces artificial frequency, time and spatial diversity, and unlike previously proposed relaying communication systems, the proposed scheme requires only a single transmission phase. Extensive system simulation studies have shown impressive system throughput gain compared to a single hop and conventional 2-hop systems.

Keywords

4G mobile communication; Fourier transforms; OFDM modulation; 2-dimensional Fourier transform; 2-dimensional cyclic prefix; 4G OFDM systems; OFDM symbol delay; conventional 2-hop systems; full rate relaying method; relay nodes; single hop systems; transmit architecture; Base stations; Delay; Digital relays; Diversity reception; Frequency domain analysis; MIMO; Network topology; OFDM; Power system relaying; Wireless communication; Cooperative relaying, OFDM, system performance, full rate;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2009.061077

Filename

5200961