Abstract
The IEEE 802.11 MAC protocol, often used in ad-hoc networks, has the tendency to share the capacity equally amongst the active nodes, irrespective of their loads. An inherent drawback of this fair-sharing policy is that a node that serves as a relay-node for multiple flows is likely to become a bottleneck. This paper proposes a flow-level performance model of such a bottleneck node using fluid flow analysis. Assuming Poisson initiations of new flow transfers at the bottleneck node, we obtain useful insightful, robust and explicit expressions for characteristics related to the overall flow transfer time, the buffer occupancy, and the packet delay at the bottleneck node. The analysis is enabled by a translation of the behavior of the bottleneck node and the source nodes in terms of an M/G/1 queueing model. We conclude the paper by an assessment of the impact of alternative capacity sharing amongst source nodes and the bottleneck in order to improve the performance of the bottleneck.
Original language | English |
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Title of host publication | Ad-Hoc, Mobile, and Wireless Networks |
Subtitle of host publication | 5th International Conference, ADHOC-NOW 2006, Ottawa, Canada, August 17-19, 2006. Proceedings |
Editors | Thomas Kunz, S.S. Ravi |
Place of Publication | Berlin, Heidelberg |
Publisher | Springer |
Pages | 321-336 |
Number of pages | 16 |
ISBN (Electronic) | 978-3-540-37248-6 |
ISBN (Print) | 978-3-540-37246-2 |
DOIs | |
Publication status | Published - 2006 |
Event | 5th International Conference on Ad-Hoc, Mobile, and Wireless Networks, ADHOC-NOW 2006 - Ottawa, Canada Duration: 17 Aug 2006 → 19 Aug 2006 Conference number: 5 |
Publication series
Name | Lecture Notes in Computer Science |
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Publisher | Springer |
Volume | 4104 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 5th International Conference on Ad-Hoc, Mobile, and Wireless Networks, ADHOC-NOW 2006 |
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Abbreviated title | ADHOC-NOW 2006 |
Country/Territory | Canada |
City | Ottawa |
Period | 17/08/06 → 19/08/06 |
Keywords
- EWI-9127
- METIS-238767
- IR-63926
- Medium Access Control
- Source Node
- Relay Node
- Transfer Time
- Distribute Coordination Function