A proposal of an ATM wireless access system for tetherless multimedia services
Mobile Networks and Applications - Special issue on wireless ATM
A Comparison of Wideband Communication Characteristics for Various Corridors at 57.5 GHz
Wireless Personal Communications: An International Journal
Cost-to-Benefit Modeling of WWLANs Adopting Multi-Sector Hub Stations
Wireless Personal Communications: An International Journal
The Future Generations of Mobile Communications Based on Broadband Access Methods
Wireless Personal Communications: An International Journal
60 Ghz indoor propagation studies for wireless communications based on a ray-tracing method
EURASIP Journal on Wireless Communications and Networking
EURASIP Journal on Wireless Communications and Networking
Novel Directional Radiation Pattern by Genetic Algorithms in Indoor Wireless Local Loop
Wireless Personal Communications: An International Journal
On-chip integrated antenna structures in CMOS for 60 GHz WPAN systems
IEEE Journal on Selected Areas in Communications - Special issue on realizing GBPS wireless personal area networks
Blockage and directivity in 60 GHz wireless personal area networks
IEEE Journal on Selected Areas in Communications - Special issue on realizing GBPS wireless personal area networks
Experimental investigations of 60 GHz WLAN systems in office environment
IEEE Journal on Selected Areas in Communications - Special issue on realizing GBPS wireless personal area networks
Cooperative Communications in Future Home Networks
Wireless Personal Communications: An International Journal
On-chip integrated antenna structures in CMOS for 60 GHz WPAN systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Hi-index | 0.07 |
In millimeter-wave indoor communications systems, the radiation patterns and polarizations of the antennas at base stations and remote terminals have a significant influence on channel characteristics. The work reported in this paper investigated the effects of the radiation patterns of the antennas at remote terminals on multipath propagation characteristics. These effects were investigated by indoor propagation measurements at 60 GHz conducted in a modern office room and by ray-tracing simulations based on geometrical optics. Multipath channel characteristics are compared in terms of impulse responses and their root-mean-square (rms) delay spreads for an omnidirectional antenna and for three directive antennas with different beam widths. From the results of measurements and ray-tracing simulations, the use of a directive antenna at the remote terminal is demonstrated to be an effective method of reducing the effects of multipath propagation. Further reduction in the multipath effects is found to be achieved by the use of circular polarization instead of linear polarization with the directive antennas