Abstract
AbstractThe modelling of co‐channel interference in heterogeneous networks (HetNets) is increasingly highlighted for the spectrum underlay mechanism where the macro base stations (MBSs) and low‐power nodes (LPNs) share the same radio resources. To clarify the characteristics of co‐channel interference, an analytical interference model is developed in this paper for the two‐tier hierarchical HetNets in Long‐Term‐Evolution‐Advanced systems, which consists of MBSs with deterministic locations and LPNs locating with a random Poisson field. The distribution of aggregate interference is analysed, and the parameters impacting the proposed interference model are evaluated. In the proposed aggregate interference model, the success probability is derived on the basis of the moment generation function. Further, the ergodic capacity is developed in high signal‐to‐noise ratio region, and its closed‐form expressions are derived for both MBSs and LPNs. Simulation results are presented to validate the analytical results of proposed interference model. Copyright © 2014 John Wiley & Sons, Ltd.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
