Femtocell: What, Why, and How?

In today's cellular networks Femtocell is the air access technology that promises to cope with issues like weak signal strength indoor and it is also regarded as a solution that helps on a larger scale to reduce the cost and operational expenses of a mobile network while improving network's coverage and capacity. With the joint deployment of Femtocells and Macrocells (Femtocells over the top of Macrocells), voice and data communication are carried out using cellular technology with IP backhaul through customer's broadband connection i.e., DSL or cable modem, etc. This study covers an overview of Femtocell mainly in three areas what is femtocell, why do we need it and how is it deployed. We start with a brief discussion about the benefits and challenges related to the joint deployment of Femtocells and Macrocells. Then a few key challenges are for instance the access strategies, access technology, interference, architecture and how femtocell can be connected to 3G discussed in details. The study also contains a brief analysis of the market success of femtocell.