A comparison of OFCDM and segmented-OFDM in broadband MIMO downlink channel

Author

Yoshida, Makoto ; Sugitani, Atsuhiko

Author_Institution

Fujitsu Ltd., Yokosuka, Japan

Volume

2

fYear

2004

fDate

21-25 March 2004

Firstpage

1182

Abstract

The spectral efficiencies (bps/Hz/cell) of OFCDM and segmented-OFDM for MIMO channels were evaluated subject to the outage probability. The systems apply the 2×2 space-time block coding (STBC) to reduce the fade margin. The performance comparison involved: (1) wireless link-level simulation for the fourth-generation (4G) mobile communication system and (2) system-level simulation in a multi-cell environment. The evaluating scenarios were the typical one with a moderate velocity, and severe conditions with velocities of more than 200 km/h. We point out the effectiveness of the segmented-OFDM for the broadband wireless access in the downlink and the possibility of a frequency reuse factor of 1.

Keywords

4G mobile communication; MIMO systems; OFDM modulation; block codes; broadband networks; cellular radio; code division multiplexing; frequency allocation; radio access networks; radio links; space-time codes; telecommunication channels; 4G mobile communication system; OFCDM; broadband MIMO downlink channel; broadband mobile system; broadband wireless access; cellular system; fade margin; frequency reuse factor; multicell environment; orthogonal frequency and code division multiplexing; outage probability; segmented-OFDM; space-time block coding; spectral efficiencies; wireless link-level simulation; 4G mobile communication; Block codes; Digital audio broadcasting; Downlink; Fading; Frequency domain analysis; MIMO; OFDM; Radio transmitters; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE

ISSN

1525-3511

Print_ISBN

0-7803-8344-3

Type

conf

DOI

10.1109/WCNC.2004.1311356

Filename

1311356