The multihop (mobile) ad hoc networking paradigm emerged, in the civilian field, in the 1990s with the availability of off-the-shelf wireless technologies able to provide direct network connections among users devices: Bluetooth for personal area networks, and the 802.11 Mobile Ad Hoc Networking: Milestones, Challenges, and New Research Directions standards family for high-speed wireless LAN . Specifically, these wireless standards allow direct communications among network devices within the transmission range of their wireless interfaces, thus making the single-hop ad hoc network a reality, that is, infrastructureless Mobile Ad Hoc Networking: Milestones, Challenges, and New Research Directions WLAN/WPAN where devices communicate without the need for any network infrastructure (Fig. 1). The multihop paradigm was then conceived to extend the possibility to communicate with any couple of network nodes, without the need to develop any ubiquitous network infrastructure. In the ’90s, we assisted in the usage of the multihop paradigm in mobile ad hoc networks, Mobile Ad Hoc Networking: Milestones, Challenges, and New Research Directions where nearby users directly communicate (by exploiting the wireless-network interfaces of their devices in ad hoc mode) not only to exchange their own data but also to relay the traffic of other network nodes that cannot directly communicate, thus operating as routers do in the legacy Internet. For this reason, in a MANET, the users’ devices cooperatively provide the Internet services, usually provided by the network infrastructure. At its birth, the MANET was seen as one of the most innovative and challenging wireless networking paradigms , and was promising to become one of the major technologies, increasingly present in the everyday life of everybody. We help you to formulate mobile ad hoc network project topics. The potentialities of this networking paradigm made Mobile Ad Hoc Networking: Milestones, Challenges, and New Research Directions ad hoc networking an attractive option for building fourth-generation (4G) wireless networks, and hence MANET immediately gained momentum, and this produced tremendous research efforts in the mobile network community . The Internet model was central to the MANET Internet Engineering Task Force (IETF) working group, which, inheriting the TCP/IP protocols stack layering, assumed an IPcentric view of a MANET; see “Mobile Ad Hoc Networks” by J. P. Macker and M. Mobile Ad Hoc Networking: Milestones, Challenges, and New Research Directions S. Scott Corson in . The MANET research community focused on what we call pure generalpurpose MANETs, where pure indicates that no infrastructure is assumed to implement the network functions, and no authority is in charge of managing and controlling the network. Generalpurpose denotes that these networks are not designed with any specific application in mind, but rather to support any legacy TCP/IP application .