As wireless communication is a main concentration of smartphone applications nowadays, people are trying to build wireless connection with... Show moreAs wireless communication is a main concentration of smartphone applications nowadays, people are trying to build wireless connection with others to share data and communicate. Wi-Fi Direct is a new technology that has the ability to build wireless connection within a group of devices. Mobile Ad-hoc network is one important approaches in wireless Ad-hoc network. Several researches are focusing on creating a Mobile Ad-hoc network over Wi-Fi Direct with simulator. As supporting Wi-Fi Direct functions, Android platform provides a hardware environment. And until now, Android is the only platform supporting this latest technology, neither Blackberry and iOS. In this thesis, one Android application is made to explore the establishment of Mobile Ad-hoc network over Wi-Fi Direct. This thesis also discusses one potential fundamental of the framework about this network, including message exchange and routing protocols. Multiple Android smartphones (Nexus 5) are used to make some tests about establishing this network in a mobile devices. M.S. Electrical Engineering, May 2014 Show less