Guest editorial: introduction to the special issue on wireless reconfigurable terminals - Part II

The first paper of the present issue by Ryynänen et al from Helsinki University of Technology still covers RF hardware implementations aspects giving “an introduction of the demands set by the different systems and receiver architectures to the design of the multi-mode and multi-band receiver”. On the other hand, the last two papers focus on system level issues for future terminals. More specifically, the second paper from Desoli and Filippi from STMicroelectronics “presents an overview of the evolution of mobile terminal architectures, from monolithic to flexible, modular, and capable of meeting the increasing demand for an ever larger number of features at the right cost and time to market”. Finally the third and last paper by Cabric et al. from the University of California, Berkeley takes a more long term view of the terminal evolution addressing spectrum sharing radios that make use of Ultra Wideband transmission and Cognitive techniques.