Coverage enhancement methods for LMDS.

Coverage enhancement methods for LMDS.

The upper SHF and EHF radio bands (above about 20 GHz) offer abundant available bandwidth for access to metropolitan area networks by fixed broadband wireless access (FBWA) systems. However, these systems must withstand significant propagation impairments, especially shadowing by obstacles and rainf...

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Vydáno v:IEEE Communications magazine 41, 7 (2003).
Hlavní autor: Falconer, D.D
Médium: Článek
Jazyk:English
Témata:
EHF radio band.
FBWA system design.
LMDS.
MAN.
NLOS coverage.
SHF radio bands.
Antenna placement.
Attenuation. modeling.
Bandwidth.
Coverage enhancement methods.
Diversity reception.
Fixed broadband wireless access systems.
Line-of-sight placement.
Macrodiversity.
Metropolitan area networks.
Nonline-of-sight coverage.
Propagation impairments.
Propagation measurements.
Rainfall attenuation.
Repeaters.
Shadowing.
Short distance.