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.
The merits of multi-hop communication in deep space
2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484) ; 1 ; 211-222 vol.1
2000-01-01
1088199 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
The Merits of Multi-Hop Communication in deep Space
British Library Conference Proceedings | 2000
|Engineering Index Backfile | 1948
|Online Contents | 2009
IuD Bahn | 2003
|Engineering Index Backfile | 1928