19-GHz high-speed wireless LAN system; VJ25 system

Author

Okada, Takashi ; Shirato, Tadashi ; Araki, Kojiro

Author_Institution

NTT Wireless Syst. Labs., Kanagawa, Japan

Volume

3

fYear

1997

fDate

3-8 Nov 1997

Firstpage

1300

Abstract

This paper describes a new high-speed wireless LAN system in the 19-GHz band based on the RCR STD-34A Japanese radio system standard. This system consists of a control module (CM) and some user modules (UMs). One CM can communicate with up to 10 UMs. This system features a maximum throughput of 15.2 Mbit/s, which is faster than the Ethernet. To achieve high speed wireless data transmission, this system adopts global scheduling multiple access (GSMA), in which all data transmission is managed in the CM, and DQPSK is used as a modulation scheme. This GSMA has both short-length and long-length frames, and performs well with light traffic and heavy traffic with minimal delay. In addition, as a countermeasure to shadowing and multipath fading, the CM has an omni-beam antenna, and each UM uses a 12-sector antenna, and sector selection diversity is carried out at the UM

Keywords

data communication; differential phase shift keying; diversity reception; fading; microwave links; multi-access systems; multipath channels; performance evaluation; quadrature phase shift keying; scheduling; telecommunication standards; telecommunication traffic; wireless LAN; 12-sector antenna; 15.2 Mbit/s; 19 GHz; DQPSK; Ethernet; GSMA; Japanese radio system standard; RCR STD-34A; VJ25 system; control module; delay; global scheduling multiple access; high-speed wireless LAN system; long-length frames; modulation; multipath fading; omni-beam antenna; performance; sector selection diversity; shadowing; short-length frames; throughput; traffic; user modules; wireless data transmission; Control systems; Data communication; Delay; Ethernet networks; Fading; Local area networks; Microcomputers; Mobile computing; Multimedia systems; Shadow mapping; Telecommunication traffic; Throughput; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

0-7803-4198-8

Type

conf

DOI

10.1109/GLOCOM.1997.644345

Filename

644345