Advanced SearchSearch Tips
Uniform Fractional Band CAC Scheme for QoS Provisioning in Wireless Networks
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Uniform Fractional Band CAC Scheme for QoS Provisioning in Wireless Networks
Rahman, Md. Asadur; Chowdhury, Mostafa Zaman; Jang, Yeong Min;
  PDF(new window)
Generally, the wireless network provides priority to handover calls instead of new calls to maintain its quality of service (QoS). Because of this QoS provisioning, a call admission control (CAC) scheme is essential for the suitable management of limited radio resources of wireless networks to uphold different factors, such as new call blocking probability, handover call dropping probability, channel utilization, etc. Designing an optimal CAC scheme is still a challenging task due to having a number of considerable factors, such as new call blocking probability, handover call dropping probability, channel utilization, traffic rate, etc. Among existing CAC schemes such as, fixed guard band (FGB), fractional guard channel (FGC), limited fractional channel (LFC), and Uniform Fractional Channel (UFC), the LFC scheme is optimal considering the new call blocking and handover call dropping probability. However, this scheme does not consider channel utilization. In this paper, a CAC scheme, which is termed by a uniform fractional band (UFB) to overcome the limitations of existing schemes, is proposed. This scheme is oriented by priority and non-priority guard channels with a set of fractional channels instead of fractionizing the total channels like FGC and UFC schemes. These fractional channels in the UFB scheme accept new calls with a predefined uniform acceptance factor and assist the network in utilizing more channels. The mathematical models, operational benefits, and the limitations of existing CAC schemes are also discussed. Subsequently, we prepared a comparative study between the existing and proposed scheme in terms of the aforementioned QoS related factors. The numerical results we have obtained so far show that the proposed UFB scheme is an optimal CAC scheme in terms of QoS and resource utilization as compared to the existing schemes.
Acceptance Factor;Call Admission Control (CAC);Call Blocking Probability (CBP);Call Dropping Probability (CDP);Channel Utilization;Uniform Fractional Band (UFB);Quality of Service (QoS);
 Cited by
A. Sgora and D. D. Vergados, "Handoff prioritization and decision schemes in wireless cellular networks: a survey," IEEE Communications Surveys and Tutorials, vol. 11, no. 4, pp. 57-77, 2009. crossref(new window)

M. Z. Chowdhury, Y. M. Jang, and Z. J. Haas, "Call admission control based on adaptive bandwidth allocation for wireless networks," Journal of Communications and Networks, vol. 15, no. 1, pp. 15-24, 2013. crossref(new window)

M. Z. Chowdhury and Y. M. Jang, "Class-based service connectivity using multi-level bandwidth adaptation in multimedia wireless networks," Wireless Personal Communication, vol. 77, no. 4, pp. 2735-2745, 2014. crossref(new window)

A. Leelavathi and G. V. Sridhar, "Adaptive bandwidth allocation in wireless networks with multiple degradable quality of service," IOSR Journal of Electronics and Communication Engineering, vol. 2, no. 4, pp. 25-29, 2012.

M. Z. Chowdhury, M. S. Uddin, and Y. M. Jang, "Dynamic channel allocation for class-based QoS provisioning and call admission in visible light communication," Arabian Journal for Science and Engineering, vol. 39, no. 2, pp. 1007-1016, 2014. crossref(new window)

R. Ramajee, D. Towsley, and R. Nagarajan, "On optimal call admission control in cellular networks," Wireless Networks, vol. 3, no. 1, pp. 29-41, 1997. crossref(new window)

Y. Fang, "Thinning schemes for call admission control in wireless networks," IEEE Transactions on Computers, vol. 52, no. 5, pp. 685-687, 2003. crossref(new window)

Y. Fang and Y. Zhang, "Call admission control schemes and performance analysis in wireless mobile networks," IEEE Transactions on Vehicular Technology, vol. 51, no. 2, pp. 371-382, 2002. crossref(new window)

H. Beigy and M. R. Meybodi, "A new fractional channel policy," Journal of High Speed Networks, vol. 13, no. 1, pp. 25-36, 2004.

H. Beigy and M. R. Meybodi, "A general call admission policy for next generation wireless networks," Computer Communications, vol. 28, no. 16, pp. 1798-1813, 2005. crossref(new window)

H. Beigy and M. R. Meybodi, "Adaptive uniform fractional channel algorithms," Iranian Journal of Electrical and Computer Engineering, vol. 3, no. 1, pp. 47-53, 2004.

D. Hong and S. S. Rappaport, "Traffic model and performance analysis for cellular mobile radio telephone systems with prioritized and nonprioritized handoff procedures," IEEE Transactions on Vehicular Technology, vol. 35, no. 3, pp. 77-92, 1986. crossref(new window)

M. Schwartz, Mobile Wireless Communications. Cambridge: Cambridge University Press, 2005.

M. A. Safwat, H. M. El-Badawy, A. Yehya, and H. El-Motaafy, "Performance assessment for LTE-advanced networks with uniform fractional guard channel over soft frequency reuse scheme," Wireless Engineering and Technology, vol. 4, pp. 161-170, 2013. crossref(new window)

J. L. Vazquez-Avila, F. A. Cruz-Perez, and L. Ortigoza-Guerrero, "Performance analysis of fractional guard channel policies in mobile cellular networks," IEEE Transactions on Wireless Communications, vol. 5, no. 2, pp. 301-305, 2006. crossref(new window)