Mobile Computing and Wireless Telephony, IEEE802.11 and Bluetooth, Cellular and Wireless System Engineering, Channel Allocation in Cellular Systems, Data Management and Data Replication, File System, Adaptive Clustering for Mobile Wireless Network, The Rover Toolkit, Location Management, Energy Efficient Indexing on air, Mobile IP, TCP Over Wireless, Mobile Agents Computing Security and Fault Tolerance, Transaction Processing in Mobile Computing Environment, Ad-HOC Network.