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Dept Comp Sci & Comp Eng
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La Trobe University
Victoria 3086
AUSTRALIA
Tel: +61 3 9479 1107
Fax: +61 3 9479 3060
Email: info
@cs.latrobe.edu.au
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Research Publications - Abstract
Department of Computer Science & Computer Engineering
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Chilamkurti, N.K., Sung, J-T., Ke, C-H., and Huang, Y-M. |
| Publication Year: |
2009 |
| Paper Title: |
Collision Avoidance Multi-rate MAC Protocol: Solving Performance Anomaly in Multi-rate network |
| Conference Name: |
4th International Symposium on Wireless Pervasive Computing (ISWPC 2009) |
| Venue: |
Melbourne, Australia |
| Volume: |
ISWPC 2009 |
| Pages: |
0 - 0 |
| Abstract: |
Fading is one of the common characters of a wireless channel. Many rate adaptation mechanisms were proposed to enhance the IEEE 802.11 systems, but these may cause multiple rates in a single network. However, IEEE 802.11 DCF faces the performance anomaly in multi-rate network, that is, when the stations with different rates collide, the low-rate station will greatly degrade the high-rate station. In this paper, we propose a collision avoidance multi-rate MAC (CAMR-MAC) protocol, which is different from the current solutions for performance anomaly. current performance anomaly solutions are to assign different priorities to stations with different rates based on the IEEE 802.11 DCF protocol. The simulation results show that CAMR-MAC not only improves the network throughput but also effectively guarantees the temporal fairness of all stations.
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