NDLI: The merits of multi-hop communication in deep space

Content Provider	IEEE Xplore Digital Library
Author	Breidenthal, J.C.
Copyright Year	2000
Description	Author affiliation: Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA (Breidenthal, J.C.)
Abstract	The physics of communication give an advantage to multi-hop systems, because the ratio of power received to power transmitted on a telecommunications link of length S increases by a factor of n/sup 2/ if the link is divided in to n equal hops of length S/n. If terminal characteristics are unchanged, the cost of a multi-hop system is higher than for a single hop, but the efficiency-to-cost ratio is n times better. Multi-hop systems can be scaled easily, have capacity that scales proportional to the square of the investment, are robust, and can provide multiple orders-of-magnitude increase of capacity in deep space using presently available technology. This remains true when noise introduced on each segment is taken into account, if modern error-control coding techniques are applied. Candidate mission designs for a multi-hop approach are discussed for high-capacity Earth-Mars and interstellar communication systems.
Starting Page	211
Ending Page	222
File Size	1088199
Page Count	12
File Format	PDF
ISBN	0780358465
ISSN	1095323X
DOI	10.1109/AERO.2000.879389
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-03-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magneto electrical resistivity imaging technique Spread spectrum communication Earth Transmitting antennas Space vehicles Space technology Costs Transmitters Temperature distribution Receiving antennas
Content Type	Text
Resource Type	Article
Subject	Aerospace Engineering Space and Planetary Science

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
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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