Mobile Offloading for Maximum Utility at Minimum Cost

The new generation mobile devices appear along with an increase in cellular traffic speed. Nowadays cellular network operator’s aim is to offload cellular traffic by using Wi-Fi networks. Due to the poor coverage of the present Wi-Fi networks it is difficult to satisfy both operators and mobile users. Thus to solve the poor coverage problem and also for a successful mobile data offloading  Wi-Fi tethering has been introduced  ,it is a way of providing Wi-Fi networks .This paper suggests a mobile tethering based cooperative network .Using this technology different users can gain certain profits after their participation in tethering activity. In the first step of our system ,each user’s cellular traffic demand is allocated to other users .In order to minimize the total cellular traffic cost, which is an optimal resource allocation method, by this method tethering price can be determined to maximize the total utility of all the participated users. In simulation   result we can observe the reduction of total cellular traffic cost and found various optimal tethering prices versus different traffic demands.