Title :
Multi-beam antennas in a PMP system: an up-link carrier to interference ratio performance evaluation
Author :
Engstrom, U. ; Johansson, M. ; Dernryd, A. ; Johannisson, B. ; Masini, G.
Author_Institution :
Antenna Res. Center, Ericsson Microwave Syst., Molndal, Sweden
fDate :
6/23/1905 12:00:00 AM
Abstract :
The performed study is an up-link carrier to interference (C/I) performance evaluation of narrow multibeam and wide sector-beam node antennas in a PMP system. It is shown that the introduction of three-beam node antennas improves up-link C/I with 5 dB compared with wide-beam sector antenna. The replacement of wide-beam antennas can be made on a sector by sector basis. Simulations have shown that it is possible to get significant interference improvement in a 5×3 hub network by replacing 20% of the wide-beam antennas with multi-beam antennas.
Keywords :
cellular radio; cochannel interference; millimetre wave antennas; multibeam antennas; multiuser channels; radio access networks; radio links; time division multiple access; PMP system; TDMA; cellular architecture; co-channel interference; hub network; millimeter-wave access system; multi. beam antennas; multibeam antennas; performance evaluation; point-to-multipoint broadband access system; simulations; up-link C/I; up-link carrier to interference ratio; wide sector-beam node antennas; Directive antennas; Frequency; Interference; Microwave antennas; Millimeter wave communication; Performance evaluation; Polarization; Portable media players; Receiving antennas; Research and development;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956615
