%0 Journal Article %A Hamid Barati and Ali Movaghar and Ali Barati and Arash Azizi Mazreah and Ehsan Shahsavari Gogheri and Faranak Mohsenzadeh %D 2008 %J International Journal of Electronics and Communication Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 15, 2008 %T Next Generation Networks and Their Relation with Ad-hoc Networks %U https://publications.waset.org/pdf/11523 %V 15 %X The communication networks development and advancement during two last decades has been toward a single goal and that is gradual change from circuit-switched networks to packed switched ones. Today a lot of networks operates are trying to transform the public telephone networks to multipurpose packed switch. This new achievement is generally called "next generation networks". In fact, the next generation networks enable the operators to transfer every kind of services (sound, data and video) on a network. First, in this report the definition, characteristics and next generation networks services and then ad-hoc networks role in the next generation networks are studied. %P 654 - 657