Survey of Latest Wireless Cellular Technologies for Enhancement of Spectral Density at Reduced Cost
Mobile devices together with the intelligence that will be embedded in human environments - home, office, public places - will create a new platform that enables ubiquitous sensing, computing, storage and communication. Core requirements for this kind of ubiquitous ambient intelligence are that the devices are autonomous and robust. They can be deployed easily and require little maintenance. Mobile device will be the gateways to personally access ambient intelligence and needed information. Mobile also implies limited size and restrictions on the power consumption. Seamless connectivity with other devices and fixed networks is a crucial enabler for ambient intelligence system - this leads to requirements for increased data-rates of the wireless links.