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| Identifier |
uch.csd.msc//2004sarmpanis |
| Title |
Ένα πρωτόκολλο εκμισθώσεων για την ενημέρωση δεδομένων προσωρινών μνημών peer-to-peer δικτύων |
| Alternative Title |
A Lease-based Update Propagation Protocol for Peer-to-Peer Networks |
| Creator |
Sarmpanis, Aggelis
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| Abstract |
Locating content in peer-to-peer networks has become very popular because of the increasing interest for these networks. Previous studies reveal that the use of caches for the temporary storage of index entries in the intermediate nodes of the search path is extremely useful. Updating these caches in order to expand the lifetime and improve the network performance is even more useful. In this dissertation we propose a lease-based protocol to maintain caches in peer-to-peer networks. This protocol creates and maintains caches of index entries and it is independent of the search mechanism used in the network. The intention of the protocol is to maintain caches so that future queries can be answered immediately without the course through the entire search path. This maintenance is performed in a way that its cost does not become prohibitive, thus becoming unpractical. We use lease periods to determine the time period during caches receives updates. We compare this protocol with PCX and CUP and we show that it reduces latency significantly toward PCX and approaches the performance of CUP. Our simulations show that latency is reduced while decreasing the number of required messages, thus saving bandwidth and achieving transition speeds.
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| Issue date |
2004-11-01 |
| Date available |
2005-02-07 |
| Collection
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School/Department--School of Sciences and Engineering--Department of Computer Science--Post-graduate theses
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Type of Work--Post-graduate theses
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| Views |
450 |
Ένα πρωτόκολλο εκμισθώσεων για την ενημέρωση δεδομένων προσωρινών μνημών peer-to-peer δικτύων
