Community Aware Heterogeneous Human Mobility (CAHM): Model and Analysis Zunnun Narmawala Institute of Technology, Nirma University, Ahmedabad, Gujarat, India Sanjay Srivastava Dhirubhai Ambani Institute of Information and Communication Technology, Gandhinagar, Gujarat, India Abstract Community Aware Heterogeneous Human Mobility Model (CAHM) is based on Heterogeneous Human Walk (HHW)[1] mobility model. CAHM achieves heterogeneous local popularity as observed in real mobility traces which HHW fails to achieve. It also incorporates following additional properties of human mobility: preference of nearby locations, speed as a function of distance to be traveled and power-law distributed pause time. We show that these properties make significant impact on routing protocols’ performance. We also propose methods based on mathematical models to identify popular nodes within com- munity (hubs) and in entire network (gateways) from overlapping community structure itself without doing message flooding. Keywords: Mobility Model, Mobile Social Network, Overlapping Community Structure, Heterogeneous Popularity, Hub and Gateway 1. Introduction With the rapid growth of mobile hand-held devices with Bluetooth and adhoc WiFi connectivity, possibility of entirely new network paradigm has emerged in which encounters between these mobile devices can be exploited for opportunis- tic data transfer without using any fixed network infrastructure[2]. As these 5 Preprint submitted to Pervasive and Mobile Computing December 9, 2014