Analysing Energy Efficiency of Cell Selection Schemes for Femtocell Networks with Limited Backhaul Capacity
Deepali Gaur, Ajay Kumar Singh "Analysing Energy Efficiency of Cell Selection Schemes for Femtocell Networks with Limited Backhaul Capacity". International Journal of Computer Trends and Technology (IJCTT) V26(1):1-5, August 2015. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.
Abstract -
Demands of mobile data is ever increasing. To handle these demands operators have to deploy additional base stations such as microcell, picocells and femtocells. Deployment of these low power base stations not only improves network capacity but also improves energy efficiency in a cost effective manner. When multiple base stations are available in the vicinity, mobile users have to associate themselves to one of these base stations. This process of association is commonly known as cell selection scheme. Based on the association, users are assigned transmit power and bandwidth from target base stations. Additionally, the sum traffic passes through the backhaul connecting base station and core network depends upon the users associated with that base station. In this paper, we study the energy efficiency aspect of cell selection schemes for femtocell networks. We also look into the limited femtocell backhaul capacity constraint when user association is done. Obtained results are verified using extensive simulations.
References
[1] ?LTE heterogeneous networks, White Paper, Qualcomm, August 2012[Online].Available:http://www.qualcomm.com/media/d ocuments/ qualcommresearch-lte-heterogeneous-networks.
[2] V. Chandrasekhar, J. Andrews, and A. Gatherer, ?Femtocell networks: A survey, IEEE Communications Magazine, vol. 46,no. 9, pp. 59–67, September 2008.
[3] Andrews, J.G.; Claussen, H.; Dohler, M.; Rangan, S.; Reed, M.C., "Femtocells: Past, Present, and Future," Selected Areas in Communications, IEEE Journal on , vol.30, no.3, pp.497,508, April 2012.
[4] A. Bou Saleh, O. Bulakci, S. Redana, B. Raaf, and J. Hamalainen, ?Enhancing LTE-Advanced relay deployments via Biasing in cell selection and handover decision, in Proceedings of the IEEE International Symposium on Personal Indoor and Mobile Radio Communications, September 2010, pp. 2277–2281.
[5] Thakur, R.; Sengupta, A.; Siva Ram Murthy, C., "Improving capacity and energy efficiency of femtocell based cellular network through cell biasing," 11th International Symposium on Modeling & Optimization in Mobile, Ad Hoc & Wireless Networks (WiOpt)pp.436,443, 13-17 May 2013
[6] J. Oh and Y. Han, ?Cell selection for range expansion with almost blank subframe in heterogeneous networks, in Proceedings of the IEEE 23rd International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), Sept 2012,pp. 653–657.
[7] R. Thakur, S. Mishra, and C. R. Murthy, ?A load-conscious cell selection scheme for femto-assisted cellular networks, in Proceedings of the IEEE 24th International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), Sept 2013,pp. 2378–2382.
[8] Huq, K.M.S.; Mumtaz, S.; Bachmatiuk, J.; Rodriguez, J.; Wang, X.; Aguiar, R.L., "Green HetNet CoMP: Energy Efficiency Analysis and Optimization," IEEE Transactions on Vehicular Technology, vol.PP, no.99, pp.1,1
[9] Deruyck, M.; De Vulder, D.; Joseph, W.; Martens, L., "Modelling the power consumption in femtocell networks," IEEE Wireless Communications and Networking Conference Workshops (WCNCW), pp.30,35, 1-1 April 2012.
[10] Ng, D.W.K.; Lo, E.S.; Schober, R., "Energy-Efficient Resource Allocation in Multi-Cell OFDMA Systems with Limited Backhaul Capacity," IEEE Transactions on Wireless Communications, vol.11, no.10, pp.3618, 3631, October 2012
Keywords
Femtocell, cell selection schemes, energy efficiency, performance evaluation, backhaul capacity.