NDLI: QoS In Weather Impacted Satellite Networks

Content Provider	IEEE Xplore Digital Library
Author	Harb, K. Srinivasan, A. Changcheng Huang Cheng, B.
Copyright Year	2007
Description	Author affiliation: EION Wireless, Ottawa (Harb, K.; Srinivasan, A.)
Abstract	Rain and snow can have a distorting effect on Ku and Ka bands signal fidelity resulting in excessive digital transmission errors. This loss of signal attenuation is commonly referred to as rain fade. Rain fade impacts the Quality of Service (QoS) in wireless and satellite networks. Accurately predicting rain fade can enable mitigation planning by adaptively selecting appropriate power level, coding and modulation. This paper computes rainfall rate and Rain Attenuation (RA) at any location on earth using ITU-R models combined with bi-linear interpolation and frequency extrapolation. In addition since RA is considered a dominant impairment for wireless signal [1]-[6], we are introducing a novel method for accurately determining RA as function of frequency based on proceeding results from a predicted weather database. Finally, a three dimensional relationship is proposed among RAs with both frequency and rainfall rate, which is a function of probability. These results are key factors in adjusting and improving satellite signal power, modulation and coding schemes, and frame size, monitored and controlled altogether by a powerful and efficient intelligent system in order to improve QoS.
Starting Page	178
Ending Page	181
File Size	2104802
Page Count	4
File Format	PDF
ISBN	9781424411894
DOI	10.1109/PACRIM.2007.4313206
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-22
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellites Quality of service Rain fading Frequency Attenuation Modulation coding Snow Distortion Earth Interpolation Service Level Agreements (SLA) International Telecommunications Union - Radiocommunications (ITU-R) Quality of Service (QoS) Rain Attenuation (RA)
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in