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Satellite component of NGN: Integrated and hybrid networks
Author(s) -
Kota Sastri,
Giambene Giovanni,
Kim Sooyoung
Publication year - 2011
Publication title -
international journal of satellite communications and networking
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 39
eISSN - 1542-0981
pISSN - 1542-0973
DOI - 10.1002/sat.972
Subject(s) - computer science , wimax , computer network , quality of service , next generation network , telecommunications , exploit , communications satellite , component (thermodynamics) , hybrid system , wireless , satellite , the internet , computer security , physics , machine learning , world wide web , engineering , aerospace engineering , thermodynamics
Future mobile networks are expected to involve systems that are based on different technologies, such as WiFi, WiMAX, 2G/3G/3G+, LTE, and satellite. To address this scenario, ITU has defined integrated and hybrid networks in the framework of Next‐Generation Networks. The interest is to exploit the cooperation of different wireless communication systems (segments) to provide service to mobile users in the most efficient way, taking into account signal quality (coverage), traffic congestion conditions, and cost issues. Integrated and hybrid networks have the potential to be an efficient and cost‐effective solution to employ satellite communications for mobile users. In the view of this, our paper focuses on the design of integrated/hybrid systems taking into account physical, MAC, and network layers issues. System examples and standards are described as well. Then, cooperative diversity techniques and traffic engineering issues for overflow traffic are discussed. This paper concludes identifying some possible future trends. Copyright © 2010 John Wiley & Sons, Ltd.