Title :
Employing Directional Antennas in Double-Directional Radio Channel
Author :
Sun, Chen ; Hunziker, Thomas ; Taromaru, Makoto
Author_Institution :
ATR Wave Eng. Lab., Kyoto
Abstract :
A novel scheme that jointly utilizes switched beam antennas in double-directional radio channel (DDRC) is proposed. Employing directional beam pattern at both transmitter (Tx) and receiver (Rx) sides in DDRC provides distributed directivity gain (DDC). Jointly switching directional patterns at both ends provides extra diversity gain. We employ two electronically steerable parasitic array radiator (ESPAR) antennas as the switched beam antennas. The scheme features a lower system complexity. The achieved capacity is even higher than that of a 2-by-2 multiple-input multiple-output (MIMO) system in the same channel environment
Keywords :
MIMO systems; antenna arrays; antenna radiation patterns; directive antennas; diversity reception; wireless channels; MIMO system; directional antennas; directional beam pattern; distributed directivity gain; double-directional radio channel; electronically steerable parasitic array radiator antennas; multiple-input multiple-output; receiver; switched beam antennas; system complexity; transmitter; Antenna arrays; Channel capacity; Delay; Directional antennas; Directive antennas; MIMO; Radio frequency; Radio transmitters; Receivers; Sun;
Conference_Titel :
Wireless Communication Systems, 2005. 2nd International Symposium on
Conference_Location :
Siena
Print_ISBN :
0-7803-9206-X
DOI :
10.1109/ISWCS.2005.1547770
