Abstract
In this paper, a performance improving MAC algorithm for the IEEE 802.11 DCF is proposed. The DCF controls the transmission based on carrier sense multiple access with collision avoidance (CSMA/CA), which decides a random backoff time with the range of contention window (CW) for each station. Normally, each station doubles the CW after collision, and reduces the CW to the minimum after successful transmission. This paper proposes an enhanced DCF algorithm that decreases the CW smoothly after successful transmission in order to reduce the collision probability by utilizing the current contention status information of WLAN. In addition, the throughput and delay performance for the unsaturated case is analyzed mathematically. Simulation results show that the suggested algorithm enhances the saturation throughput of WLAN. They also coincide well with the analytical results.
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© 2006 Springer-Verlag Berlin Heidelberg
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Jung, W.J., Hwang, A.K., Kim, B.C., Lee, J.Y. (2006). Design and Performance Analysis of an Enhanced MAC Algorithm for the IEEE 802.11 DCF. In: Min, G., Di Martino, B., Yang, L.T., Guo, M., Rünger, G. (eds) Frontiers of High Performance Computing and Networking – ISPA 2006 Workshops. ISPA 2006. Lecture Notes in Computer Science, vol 4331. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11942634_108
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DOI: https://doi.org/10.1007/11942634_108
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-49860-5
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