Analysis on LTE/Wi-Fi Data Offloading in Hetnets

Due to extensive usage of smartphone, laptop, tablet, etc., there is an increase in volume of mobile data traffic. So, the best remedy to tackle with mobile data traffic issue is Wi-Fi offloading. It is the cost-effective approach that offloads mobile traffic in the existing Wi-Fi networks. Mobile users obtain data through Wi-Fi instead of cellular network; hence, it is the efficient technique to improve the spectrum efficiency and reduce the cellular network congestion. Wi-Fi access points have the advantage on amount of offload data and also provide quality of service in offloading data. To provide fairness between LTE and Wi-Fi, load balance is the technique addressed here. The load balancing problem can be solved by sharing traffic between adjacent cells. This work aims to provide an efficient dynamic load balance algorithm for offloading the data, and the simulation is done using MATLAB and NS2 software.