Outage analysis of two-tier heterogeneous cellular network with sleep strategies

This research paper has analyzed two tier heterogeneous cellular network based infrastructure, when femto cells are introduced in traditional homogeneous network for meeting explosive data rate requirements raised by high speed smart applications driven by smart phones, tablets and PCs. The evolution of small cell opens the possibility to cater with one of the biggest issue in cellular world: Energy Efficiency (EE) of base stations. One way to optimized EE is to introduce sleep mode strategies for small cells. This research work aims to investigate outage probability and active probability of multi-tier heterogeneous network, when sleeping mode strategies are applied for reduction in energy consumption.