A context-aware framework for the efficient integration of femtocells in IP and cellular infrastructures
1 Department of Information and Communication Systems Engineering, University of the Aegean, Karlovassi Samos GR-83200, Greece
2 Department of Electronic and Electrical Engineering, University of Sheffield, Western Bank, Sheffield S10 2TN, UK
3 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC), Castelldefels, Barcelona, Spain
EURASIP Journal on Wireless Communications and Networking 2013, 2013:62 doi:10.1186/1687-1499-2013-62Published: 5 March 2013
In today’s heterogeneous networking (HetNet) environments, where end users are provided with universal connectivity opportunities, femtocell deployments can become key players in the enhancement of critical performance indicators such as capacity, coverage, QoS, etc. In order to confront the up-to-date LTE femtocell challenges, we propose a context-aware framework that provides a controlled environment from the femtocell point of view, which is required for applicable functionality. More specifically, we aim to (a) control the local environment where the femtocell is placed within, by efficiently managing the total incoming traffic load and by continuously adjusting the distribution of the backhaul capacity among the coexisting networks and (b) control the macro–femto interference caused by macrocell users transmitting close to the femtocell by investigating the “femtocell as a relay” concept. Finally, the performance of the proposed framework is evaluated via simulation results showing that the overall performance of a HetNet environment can be leveraged in terms of QoS requirements, energy saving and data rate enhancement.