Skip to main content
placeholder image

A probabilistic call admission control algorithm for WLAN in heterogeneous wireless environment

Journal Article


Abstract


  • In an integrated WLAN and cellular network, if all mobile users whose connections originate in the cellular network migrate to the WLAN whenever they enter the double coverage area, the WLAN will be severely congested and its users will suffer from performance degradation. Therefore, we propose a Call Admission Control (CAC) algorithm that allows the WLAN to limit downward Vertical Handovers (VHOs) from the cellular network to reduce unnecessary VHO processing. Numerical and simulation results demonstrate that our CAC scheme reduces the unnecessary VHO processing while keeping the DVHO blocking rate within acceptable limits and maintaining reasonable throughput in the WLAN. © 2006 IEEE.

Publication Date


  • 2009

Citation


  • Lee, S., Kim, K., Hong, K., Griffith, D., Kim, Y. H., & Golmie, N. (2009). A probabilistic call admission control algorithm for WLAN in heterogeneous wireless environment. IEEE Transactions on Wireless Communications, 8(4), 1672-1676. doi:10.1109/TWC.2009.080977

Scopus Eid


  • 2-s2.0-65949105063

Web Of Science Accession Number


Start Page


  • 1672

End Page


  • 1676

Volume


  • 8

Issue


  • 4

Abstract


  • In an integrated WLAN and cellular network, if all mobile users whose connections originate in the cellular network migrate to the WLAN whenever they enter the double coverage area, the WLAN will be severely congested and its users will suffer from performance degradation. Therefore, we propose a Call Admission Control (CAC) algorithm that allows the WLAN to limit downward Vertical Handovers (VHOs) from the cellular network to reduce unnecessary VHO processing. Numerical and simulation results demonstrate that our CAC scheme reduces the unnecessary VHO processing while keeping the DVHO blocking rate within acceptable limits and maintaining reasonable throughput in the WLAN. © 2006 IEEE.

Publication Date


  • 2009

Citation


  • Lee, S., Kim, K., Hong, K., Griffith, D., Kim, Y. H., & Golmie, N. (2009). A probabilistic call admission control algorithm for WLAN in heterogeneous wireless environment. IEEE Transactions on Wireless Communications, 8(4), 1672-1676. doi:10.1109/TWC.2009.080977

Scopus Eid


  • 2-s2.0-65949105063

Web Of Science Accession Number


Start Page


  • 1672

End Page


  • 1676

Volume


  • 8

Issue


  • 4