An Economic User-Centric WiFi Offloading Algorithm for Heterogeneous Network

Abstract EN

An economic user-centric WiFi offloading algorithm is proposed to satisfy the major concerns ofwireless users, who wish to have better network performance with even less network expense.

Thus in this paperboth system throughput and network expense are considered, and the goal of the proposed offloading algorithm isto obtain an optimal offloading ratio, which can both maximize the system throughput and minimize the networkexpense.

Firstly, a practical system model is set up on the basis of a typical scenario of heterogeneous network.

In thismodel, the average throughput of both cellular network and WiFi network is analyzed carefully.

Then an economicuser-centric WiFi offloading algorithm is proposed with an evaluation function to evaluate the system, and the optimaloffloading ratio can be obtained by minimizing the evaluation function.

At last, numerical results represent a directcalculating process of the optimal offloading ratio.

These results in return validate the efficiency of the proposedoffloading algorithm as well.