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Автор: Alessandro Bazzi
Издательство: Intech
Год издания: 2010
isbn: 9533070919
Количество страниц: 722
Язык: english
Формат: PDF
Размер: 18,7 Мб
Каталожный номер: 62064
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In the last decades the restless evolution of information and communication technologies (ICT) brought to a deep transformation of our habits. The growth of the Internet and the advances in hardware and software implementations modified our way to communicate and to share information. Although conceived for study and working scopes, the presence of ICT infrastructures and services are now pervasive in our life. Their availability is felt as a need that cannot be constrained to a place: people want to have them anytime, anywhere. And the need for wireless connections starts from daily communication and embraces all fields of human life, in an ever increasing way: transportation systems, home management, healthcare, emergency operations. This brought to the large interest and great evolution that characterized radio technologies in the last years all over the world. Since the development of the first wireless systems, great technological advances were performed: spread spectrum and multi-carrier techniques allowed to make transmissions over larger bandwidths with higher data rates for the final users in challenging scenarios where line of sight is not guaranteed and multipath severely affects signal propagation; new coding techniques were developed to increase the efficiency of radio transmissions; advanced link adaptation and power control algorithms were implemented in order to allow optimized trade-off between reliability and data rate; and many other topics shall be cited.
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