Backup Backhaul for Femtocells

In indoor scenarios where conventional macro BS coverage can be poor, femto cells present a promising solution for high quality wireless access. They are randomly deployed by the user and share the customer broadband connection for cellular core connectivity. Furthermore, this sharing can creates severe capacity and reliability issues. Traditional solutions like Line-of-Sight (LoS), microwave link and leased fibre lines are mostly technically challenging and economically unfeasible. This paper presents a new redundant architecture using overlapping clustering which groups together FAPs (Femto Access Point) in different clusters. However, we analyze our proposed algorithm for number of overlapping, isolated FAPs and the CHs in response of variations in total number of FAPs and range of Wi-Fi link. Simulation results shows the optimal density of the FAPs in unit area and suitable Wi-Fi range provide highly desirable figures.