Aksu, Aylin and Krishnamurthy, Prashant and Tipper, David and Ercetin, Ozgur
(2010)
On Security and Reliability using Cooperative Transmissions in Sensor Networks.
Proceedings 6th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom).
Abstract
Recent work on cooperative communications has demonstrated benefits in terms of improving the reliability of links through diversity and/or increasing the reach of a link
compared to a single transmitter transmitting to a single receiver (single-input single-output or SISO). In one form of cooperative transmissions, multiple nodes can act as virtual antenna elements and provide such benefits using space-time coding. In a multi-hop sensor network, a source node can make use of its neighbors as relays with itself to reach an intermediate node, which will use its neighbors and so on to reach the destination. For the same reliability of a link as SISO, the number of hops between a source and destination may be reduced using cooperative transmissions.
However, the presence of malicious or compromised nodes in
the network impacts the use of cooperative transmissions. Using more relays can increase the reach of a link, but if one or more relays are malicious, the transmission may fail. In this paper, we analyze this problem to understand the conditions under which cooperative transmissions may fare better or worse than SISO transmissions.
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| Item Type: |
Article
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| Status: |
Published |
| Creators/Authors: |
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| Date: |
October 2010 |
| Journal or Publication Title: |
Proceedings 6th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom) |
| Publisher: |
IEEE |
| Institution: |
University of Pittsburgh |
| Schools and Programs: |
School of Information Sciences > Telecommunications |
| Refereed: |
Yes |
| Date Deposited: |
06 Jul 2011 15:28 |
| Last Modified: |
15 Aug 2017 16:38 |
| URI: |
http://d-scholarship.pitt.edu/id/eprint/5962 |
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