Session I: Wireless Networks and Communications -- Wireless VoIP: Opportunities and Challenges -- GSM Mobile Phone Based Communication of Multimedia Information: A Case Study -- A Witness-Aided Routing Protocol for Mobile Ad-Hoc Networks with Unidirectional Links -- Assessing Opportunities for Broadband Optical Wireless Local Loops in an Unbundled Access Network -- On Simulation Modeling of Information Dissemination Systems in Mobile Environments -- Session II: Transaction Processing in Mobile Environments -- On the Performance of Transaction Processing in Broadcast Environments -- Transaction Processing in an Asymmetric Mobile Environment -- Speculative Lock Management to Increase Concurrency in Mobile Environments -- Optimistic Concurrency Control in Broadcast Environments: Looking Forward at the Server and Backward at the Clients -- Session III: Ubiquitous Information Services -- Modelling the WAP Transaction Service Using Coloured Petri Nets -- Enabling Ubiquitous Database Access with XML -- Design and Evaluation of an Information Announcement Mechanism for Mobile Computers -- Active Rule System for Adaptive Mobile Data Access -- Preserving Smooth Traffic and High Presentation QoS for VBR-Encoded Video -- Session IV: Mobile Data Replication and Caching -- Peer Replication with Selective Control -- Cache Coherency in Location-Dependent Information Services for Mobile Environment -- An Autonomous Data Coherency Protocol for Mobile Devices -- Session V: Mobility and Location Management -- Location Management Strategies for Reducing Both Movement Cost and Locating Cost Simultaneously -- Internet Mobility Support Optimized for Client Access and Its Scalable Authentication Framework -- Proxy Agent Consistency Service Based on CORBA -- Keynote Speeches -- Integrating Mobile Objects into the Wirelessly Wired World: The Need for Energy Efficient Algorithms -- Databases Unplugged: Challenges in Ubiquitous Data Management.