Max-Weight Algorithm for Mobile Data Offloading through Wi-Fi Networks

Shirong Lin, Zhijun Li, Shouxu Jiang

Abstract: We consider the data uplink control problem for mobile terminals in wireless networks subjected to time-varying channels, reconfiguration delays and interference constraints. We analysis the uplink capacity region of multiple mobile users in wireless networks, and we use Clarke Gan’s channel model for channel process of mobile terminals. We evaluate the impaction caused by schedule changing and also the changing of network topologies, and then we proposed a Max-Weight algorithm for the system. The proposed algorithm makes schedule by considering the impaction of reconfiguration and the expectation throughput of a schedule. The schedule generated by this algorithm can achieve a larger throughput subjected to existing approaches.