Femtocell architecture involves the use of two separate layers-the macrocell and femtocell
layers. In this architecture, the former is the conventional cellular network, whereas the latter …

Femtocells have emerged as a promising solution to provide wireless broadband access
coverage in cellular dead zones and indoor environments. Compared with other techniques …

Femtocells are expected to take a major role on increasing the data rates on cellular network
access over the next years. Cognitive Radio enabled femtocells are considered to be a …

Femtocell is envisioned as a highly promising solution for indoor wireless communications.
The spectrum allocated to femtocells is traditionally from the same licensed spectrum bands …

To successfully deploy femtocells overlaying the Macrocell as a two-tier that had been
shown greatly benefiting communications quality in various manners, it requires to mitigate …

Increase in system capacity and data rates can be achieved efficiently in a wireless system
by getting the transmitter and receiver closer to each other. Femtocells deployed in the …

To successfully deploy femtocells underlaying the macrocell as a heterogeneous network,
which has been proven to greatly improve indoor coverage and system capacity, the cross …

Femtocell networks are widely being deployed to extend cellular network coverage in indoor
environments such as office building spaces and homes. In order to mitigate possible co …

The Cognitive Radio (CR) paradigm provides mechanisms and methodologies for an utmost
and efficient use of scarce spectrum resources. Among its implementations, Opportunistic …

The network coverage and energy efficiency issues in heterogeneous cognitive‐femtocell
networks over the macrocell network is studied. Cognitive functions in wireless network …