Interference evaluation and MS controlled handoff technique for femtocell

Femtocells (aka Home Node B) are low-power wireless access points that operate in licensed spectrum to connect standard mobile devices to a mobile operator´s network using residential DSL or cable broadband connections. This device has evolved out of the research that despite of large deployment of macrocell (BTS/BSC) in high density apartment areas and densely populated urban population, the signal strength and voice quality is a major challenge to achieve. But on the other side of the coin there are potential handoff challenges in the implementation of femtocells because of the limitations in the number of adjacent cell sites and unavailability of adequate neighboring cell information during mobility. This paper focuses on the overview of femtocell technology, its potential implementation challenges, Interference evaluation, traditional handoff technique and the suggestion to adopt mobile station (MS) controlled handoff technique that should be adopted in order to successfully handover the control from the mobile operator cell (macrocell) to the femtocell and vice versa.