In this research lab, we study diferent aspect of network traffic engineering such as network performance evaluation, QoS provisioning, energy effeciency and etc. in wireless networks in general.

Queuing theory has been proved as an essential and important tool for performance evaluation of telecommunication networks. In this way, Erlang-B formula has been used frequently for capacity planning of circuit switched networks. Consequently studies of capacity planning in mobile cellular networks are also based on such a formula. In this study we show that the voice traffic model in existing cellular networks does not follow negative exponential assumptions and therefore the Erlang-B formula is no longer valid.

As various wireless networks develop into the next generation to provide better services for users, a key technology, wireless mesh networks (WMNs), has emerged recently. An infrastructure wireless mesh network (InfWMN) is a hierarchical network, consists of mesh clients, mesh routers and gateways. The mesh routers form a wireless mesh infrastructure, to which the mesh clients are connected using star topology. To further improve the flexibility of mesh networking, a mesh router is usually equipped with multiple wireless interfaces.