The document discusses topics related to mobile computing including:
1. Generations of mobile communication technologies, multiplexing techniques, and MAC protocols like SDMA, TDMA, FDMA, and CDMA are introduced.
2. Issues with TCP in mobile networks and approaches to mobile TCP are examined. Protocols like Mobile IP, DHCP, and routing in ad hoc networks are analyzed.
3. Cellular network technologies including GSM, GPRS, and UMTS are described along with their architectures, protocols, mobility management, and security features. Handover procedures are also summarized.
4. The Wireless Application Protocol (WAP) and its architecture involving layers like WDP, WTLS, W