The deployment of femtocells in a macrocell network is an economical and effective way to
increase network capacity and coverage. Nevertheless, such deployment is challenging due …

In this paper, we propose a joint subchannel and power allocation algorithm for the downlink
of an orthogonal frequency-division multiple access (OFDMA) mixed femtocell/macrocell …

Femtocells are being considered a promising technique to improve the capacity and
coverage for indoor wireless users. However, the cross-tier interference in the spectrum …

We consider the joint subchannel allocation and power control problem for orthogonal
frequency-division multiple-access (OFDMA) femtocell networks in this paper. Specifically …

Femtocell networks, consisting of a conventional macro cellular deployment and overlaying
femtocells, forming a hierarchical cell structure, constitute an attractive solution to improving …

Two-tier networks, comprising a conventional cellular network overlaid with shorter range
hotspots (eg femtocells, distributed antennas, or wired relays), offer an economically viable …

Femtocells are assuming an increasingly important role in the coverage and capacity of
cellular networks. In contrast to existing cellular systems, femtocells are end-user deployed …

For two-tier networks consisting of macrocells and femtocells, the channel access
mechanism can be configured to be open access, closed access, or hybrid access. Hybrid …

This paper investigates the performance of two-tier femtocell networks with cochannel
femtocell deployment while considering cellular geometry and cross-tier interference in …

Two-tier femtocell networks-comprising a conventional cellular network plus embedded
femtocell hotspots-offer an economically viable solution to achieving high cellular user …