Breaking down the issues in Mobile Computing

• Technical Challenges of Mobile Computing
– portability,
– mobility,
– wireless communications
– system issues

•Traveling people and their needs with respect to applications and technologies
– application perspective: which applications are of benefit?
– Which applications can be implemented and used effectively regarding the often narrow bandwidth, limited computing power, small memory and battery capacity and other resources of the terminals?


•Wireless Networks
– to main types: terrestrial cellular and satellite networks – determine to a large extent application architectures and usable protocols
– communication autonomy is an important feature of the terminals in these networks: thus the terminals are not always reachable for variety of reasons

•Data Management issues
– where to keep the data, when to transmit it, whether to use caching and where in the network, how to optimize data placement, pull/push approach, transactional services, location-dependent queries etc
– these questions are closely related with the
networking issues and properties of the terminals