Abstract
Scheduling packets to be forwarded over a link is an important subtask of the routing process both in parallel computing and in communication networks. This paper investigates the simple class of greedy scheduling algorithms, namely, algorithms that always forward a packet if they can. It is first proved that for various “natural” classes of routes, the time required to complete the transmission of a set of packets is bounded by the sum of the number of packets and the maximal route length, for any greedy algorithm (including the arbitrary scheduling policy). Next, tight time bounds of Θ(n) are proved for a specific greedy algorithm on the class of shortest paths in n-vertex networks. Finally it is shown that when the routes are arbitrary, the time achieved by various “natural” greedy algorithms can be as bad as Ω(n1.5), when O(n) packets have to be forwarded on an n-vertex network.
Original language | English |
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Title of host publication | Distributed Algorithms - 4th International Workshop, Proceedings |
Editors | Jan van Leeuwen, Nicola Santoro |
Publisher | Springer Verlag |
Pages | 169-184 |
Number of pages | 16 |
ISBN (Print) | 9783540540991 |
DOIs | |
State | Published - 1991 |
Externally published | Yes |
Event | 4th International Workshop on Distributed Algorithms, WDAG 1990 - Bari, Italy Duration: 24 Sep 1990 → 26 Sep 1990 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 486 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 4th International Workshop on Distributed Algorithms, WDAG 1990 |
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Country/Territory | Italy |
City | Bari |
Period | 24/09/90 → 26/09/90 |
Bibliographical note
Publisher Copyright:© 1991, Springer Verlag. All rights reserved.
Funding
in part by ~n Allon Fellowship,b y ~ Walter ~nd Ellse Ha~
Funders | Funder number |
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~n Allon Fellowship,b y ~ Walter ~nd Ellse Ha~ |