That means you can be tracked by some bad guys as well. By putting computer into background, it can improve social interactions between computer geeks and society. The paper first lists the research challenges for the wireless information systems in the terminals, the wireless links, the base stations, the networks, and the information servers and services. The paper then lists the wireless technology that we will need to have in the near future. Finally, the paper proposes a road map for implementing the wireless information systems.
Mobility implies adaptability in the system's architecture and algorithms.
These six groups differ in the applications and the mobility they support. The high-tier PCS provides higher quality but less capacity, thus it costs more and consumes more power, it supports vehicular speed. The low-tier PCS provides more capacity but lower quality, and supports only walking speed, thus it costs less and consumes less power. PCS can be combined. CDPD is an example.