This module introduces the principles of networking protocol design under the mobile/ wireless environment. Mobile networking protocol design for the MAC, Network, Transport, Session and Application layers will be covered. The course will follow a “problem-and-solution” approach in which key generic problems created by the mobile/ wireless environment on each protocol layer are first introduced. Alternative solutions as well as their associated trade-offs, are then illustrated via real-world examples. Specific problems and their practical solutions to be studied include: Multi Access Control in a wireless environment, Mobility Management for infrastructure-oriented wireless networks (e.g. location tracking and handover), Routing in Mobile Ad Hoc networks, Wireless Transport protocol design, Session and Service control for Multimedia Wireless networks. Emerging Mobile networking Technologies and Future Directions will also be discussed.