Various communication technologies are suggested for building smart grid communication networks. As WiMAX provides features such as interoperability and quality of services scheduling options, it is considered to be one of the suitable technologies for various applications in smart grid. WiMAX networks can be utilized to build communication infrastructure of smart grid applications. In this paper, we have presented a review of recent research activities in smart grid communication using WiMAX technology. We analyzed the performance of WiMAX communication network for monitoring, control and protection type of traffic for substation automation. We classified the traffic types with Quality of Service options available in WiMAX using Network Simulator 3 and measured delay and packet delivery ratio to check whether it satisfies delay and reliability requirements of substation automation