OFDM subcarrier selection for real-time wireless communication

Author

Kamikura, Atsushi ; Okada, Naoki ; Nakagawa, Masao

Author_Institution

Dept. of Inf. & Comput. Sci., Keio Univ., Kanagawa, Japan

Volume

1

fYear

2002

fDate

25-28 Nov. 2002

Firstpage

52

Abstract

Recently, networks have come to be used for human support such as remote control of robots. In remote control, haptic and picture information are needed. Haptic information is local, and it must be transmitted instantly. However, in conventional wireless communication, long delay exists. We proposed OFDM subcarrier selection for real-time wireless communication. In transmission, data are separated into hard real-time and soft real-time. For hard real-time, time interleaving is not used, and subcarriers that have high received power were allocated. By computer simulations, it was shown than real-time wireless communication was possible.

Keywords

OFDM modulation; data communication; delays; radio applications; radiocommunication; telerobotics; OFDM subcarrier selection; computer simulations; data transmission; delay; haptic information; hard real-time data; picture information; real-time wireless communication; robot remote control; soft real-time data; wireless communication; Communication system control; Computer simulation; Delay effects; Fading; Haptic interfaces; Interleaved codes; OFDM; Proposals; Robot control; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, 2002. ICCS 2002. The 8th International Conference on

Print_ISBN

0-7803-7510-6

Type

conf

DOI

10.1109/ICCS.2002.1182436

Filename

1182436