Title :
Proposal for a novel beam combination method for indoor high-speed wireless communication systems
Author :
Uehara, Kazuhiro ; Takatori, Yasushi ; Kagoshima, Kenichi
Author_Institution :
NTT Network Innovation Labs., Kanagawa, Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
A novel beam combination method for wide-band digital indoor communication systems such as wireless LANs and wireless ATMs is proposed. Crossed fan beams are used at the base station (BS) and personal stations (PSs). The beam combination method provides better transmission quality than the traditional pencil-beam combination and eliminates complex beam control in the BS. Maximum dispersion distributions in a transmission frequency bandwidth are calculated by a three-dimensional (3-D) indoor propagation delay simulation algorithm. A prototype fan-beam antenna for the PS is fabricated and measured at 20 GHz
Keywords :
antenna radiation patterns; asynchronous transfer mode; broadband networks; delays; digital radio; indoor radio; microstrip antennas; microwave propagation; wireless LAN; 20 GHz; base station; beam combination method; crossed fan beams; fan-beam antenna; indoor high-speed wireless communication systems; maximum dispersion distributions; personal stations; three-dimensional indoor propagation delay simulation; transmission frequency bandwidth; transmission quality; wide-band digital indoor communication; wireless ATM; wireless LAN; Bandwidth; Base stations; Communication system control; Frequency; Indoor communication; Propagation delay; Proposals; Prototypes; Wideband; Wireless LAN;
Journal_Title :
Vehicular Technology, IEEE Transactions on
