An effective CAC scheme in two-tier LTE-A macrocell/femtocell networks

The demand for voice and data services in mobile and wireless networks have been increasing in recent years. Femtocells have been considered as viable solution to meet up with this demand. Femtocell is a low power and short range access point used with macrocell to form a two-tier network in LTE/LTE-A. It is used to increase the network coverage as well as the network capacity in both indoor and outdoor environments. In order to support the use of femtocells to meet the demand for various applications and services by wireless devices, Quality of Service (QoS) provisioning is a necessity. In this work, we have proposed an effective CAC scheme for LTE-A/femtocells to effectively manage the bandwidth resources and increase the overall system capacity. By comparing the proposed scheme with the basic and existing scheme, the proposed scheme have a better performance in terms of reducing the blocking probability and increasing the resource utilization.

[1]  Timothy A. Thomas,et al.  LTE-advanced: next-generation wireless broadband technology [Invited Paper] , 2010, IEEE Wireless Communications.

[2]  Mostafa Zaman Chowdhury,et al.  Group handover management in mobile femtocellular network deployment , 2012, 2012 Fourth International Conference on Ubiquitous and Future Networks (ICUFN).

[3]  Jing Wang,et al.  Deployment analysis and optimization of Macro-Pico heterogeneous networks in LTE-A system , 2012, The 15th International Symposium on Wireless Personal Multimedia Communications.

[4]  Kristina Zetterberg,et al.  Self-Optimisation of Admission Control and Handover Parameters in LTE , 2011, 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring).

[5]  James Irvine,et al.  An Advanced SOM Algorithm Applied to Handover Management Within LTE , 2013, IEEE Transactions on Vehicular Technology.

[6]  Guy Pujolle,et al.  Optimized handover algorithm for two-tier macro-femto cellular LTE networks , 2013, 2013 IEEE 9th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob).

[7]  S. Alqahtani.  Call Admission Control for Two-Tier LTE Macro / Pico Cellular Networks , 2022 .

[8]  Raouf Boutaba,et al.  Call Admission Control in Mobile Cellular Networks : A Comprehensive Survey , 2004 .

[9]  Chris G. Guy,et al.  A mobility prediction scheme of LTE/LTE-A femtocells under different velocity scenarios , 2015, 2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD).

[10]  Sami Tabbane,et al.  A novel green handover self-optimization algorithm for LTE-A / 5G HetNets , 2015, 2015 International Wireless Communications and Mobile Computing Conference (IWCMC).

[11]  Dharma P. Agrawal,et al.  Reducing Unnecessary Handovers: Call Admission Control Mechanism between WiMAX and Femtocells , 2011, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.

[12]  Azita Laily Yusof,et al.  Performance Analysis of Handover Strategy in Femtocell Network , 2013, J. Commun..

[13]  Mostafa Zaman Chowdhury,et al.  Call admission control based on adaptive bandwidth allocation for wireless networks , 2013, Journal of Communications and Networks.

[14]  Jie Wang,et al.  A New Call Admission Control Strategyfor LTE Femtocell Networks , 2013, CSE 2013.