Development of high speed Ethernet-based wireless access system (EWA) for the 5 GHz band

Author

Iizuka, Masataka ; Sakata, Tetsu ; Mizoguchi, Masato ; Ichikawa, Takeo ; Takanashi, Hitoshi ; Morikura, Masahiro

Author_Institution

NTT Access Network Service Syst. Labs., Kanagawa, Japan

fYear

1999

fDate

1999

Firstpage

65

Lastpage

68

Abstract

This paper presents the high-speed Ethernet-based wireless access system (EWA) as a prototype of the IEEE 802.11 TGa standard. EWA consists of stations (STAs) connected to user´s PC and access points (APs) connected to Ethernet. The orthogonal frequency division multiplexing (OFDM) scheme is one of the most promising techniques for high data rate wireless access systems in severe propagation environments since it is very robust against multipath fading channels. In July 1998, IEEE 802.11 task group a (TGa) selected the OFDM technique, which was jointly proposed by Lucent Technologies and NTT, as the physical layer standard in the 5 GHz band. EWA is the first system that uses OFDM following TGa. Moving picture transmission is realized by EWA over an air interface between AP and STA with 20 Mbit/s radio access

Keywords

IEEE standards; OFDM modulation; carrier sense multiple access; fading channels; multipath channels; radio access networks; telecommunication standards; visual communication; wireless LAN; 20 Mbit/s; 5 GHz; CSMA/CD; Ethernet-based wireless access system; IEEE 802.11 TGa standard; IEEE 802.11 task group; Lucent Technologies; NTT; OFDM; SHF; access points; air interface; high data rate; high speed system; moving picture transmission; multipath fading channels; orthogonal frequency division multiplexing; physical layer standard; propagation environments; radio access; stations; wireless LAN; Ethernet networks; Laboratories; Mobile computing; Multimedia communication; Multimedia systems; OFDM; Physical layer; Switches; USA Councils; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-5454-0

Type

conf

DOI

10.1109/RAWCON.1999.810931

Filename

810931