Efficient Delivery of Multimedia Traffic Using Muti-rate Transmission of 802.11e HCCA MAC Protocol 


Vol. 33,  No. 4, pp. 192-198, Apr.  2008


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  Abstract

In this paper, we propose a scheme that improves the transmission performance of realtime multimedia data in wireless Local Area Network (LAN) environment, through the dynamical control of Transmission Opportunity (TXOP) period of the IEEE 802.11e HCCA Medium Access Control (MAC). The existing schedulers which determine the frame transmission time and its duration could not appropriately cope with the change of physical transmission rate, since the TXOP period has remained unchanged with the change of transmission rate of the wireless station. Our scheme is devised to keep the transmission performance of real-time multimedia data effectively unchanged by making TXOP period be extended when the transmission rate gets reduced. The proposed scheme is experimented along with IEEE 802.11e reference model using NCTUns simulator, which shows that the multimedia data is effectively delivered with the change of transmission rate as the distance between the wireless station and its access point increases.

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  Cite this article

[IEEE Style]

Y. Kim and J. Suk, "Efficient Delivery of Multimedia Traffic Using Muti-rate Transmission of 802.11e HCCA MAC Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 4, pp. 192-198, 2008. DOI: .

[ACM Style]

Young-Hwan Kim and Jung-Bong Suk. 2008. Efficient Delivery of Multimedia Traffic Using Muti-rate Transmission of 802.11e HCCA MAC Protocol. The Journal of Korean Institute of Communications and Information Sciences, 33, 4, (2008), 192-198. DOI: .

[KICS Style]

Young-Hwan Kim and Jung-Bong Suk, "Efficient Delivery of Multimedia Traffic Using Muti-rate Transmission of 802.11e HCCA MAC Protocol," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 4, pp. 192-198, 4. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880