NDLI: Space diversity and fade duration statistics at C-band for two overwater, line-of-sight propagation paths in the mid-Atlantic coast

Content Provider	IEEE Xplore Digital Library
Author	Goldhirsh, J. Dockery, G.D. Musiani, B.H.
Copyright Year	1963
Abstract	The authors characterize space diversity and fade duration statistics at 4.7 GHz for two line-of-sight (LOS) overwater links in the mid-Atlantic coast of the United States. Single-terminal and joint probabilities are generated for both annual and monthly cases for fade and fade duration distributions over the year period from June 1, 1989 to May 31, 1990. The fade and duration distributions during the months November-June were heavily biased by sustained deep fade events. These events were caused by persistent and severe subrefraction, which generally existed simultaneously over both sites. Although the height geometries are dissimilar (13.7 m and 45.5 m), these events mitigated the effectiveness of space diversity. During periods in February and March 1990, for example, fading continuously exceeded 20 dB (relative to the free-space power) at both sites for a duration in excess of 24 h. Space diversity does however appear effective during those months in which fading were predominantly caused by ducting (July-October) and when sustained deep fade events were generally not present.<>
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	1151
Ending Page	1155
Page Count	5
File Size	537103
File Format	PDF
ISSN	0018926X
Volume Number	41
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Statistics Line-of-sight propagation Diversity methods Fading Poles and towers Statistical distributions Probability Physics Information geometry Receiving antennas
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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