An architecture for QoS guarantees and routing in wireless/mobile networks

Efforts are underway to enhance the htemet with Qtiiq ofService (QoS) =pabfiti=for transporting ~-time dah The Reservation Protocol -) provides a signdhtg sn~anism for end-to-end QoS negotiation. The “He of wireless networks and mobde hosts being able to support mtitimedia appfications~evoice and video that quim QoS has become very signiticanti Reservation of -urces and the maintenance of QoS for the mobde as it mov= from one region to another creaanew set of Menges. Apart from resource -ervation, there is a need for muting techniqu= which help in faster handoff so that QoS can be maintaind. k this paper, a hierarchic archititi based on the mncept of QoS-domains and routing-domains is proposal The architecture W help in maintaining QoS and providing fast handofi in wiml=networh The arcbitec~ uses amoditied RSVP protocol that helps provide QoS support formobde hosts. The moditiedRSVP protocol has been implemented in an qerimenti wireland mobiietibed to t*thefeasibii& and perforrnanm of our approah The qerirnenti ~ts show that the motied RSVP helps in sa@ing wource quests for mobde hosts, after hand-off ocThe implementation of a muting architecb that uses mobde ~ and mute table changes is discussed and its “incorporation into the ~erimenti @tbed is being worked on. Permission to make digital or hard copies ofdl or part of this \vork for personal or cl=oom use is-ted without fee protided that copies are not made or dis~iuted for profit or commercial admtage and fiat copiw b=r MS notice and the full citation on the fmt page. To copy othmis% to repubfish, to post on senrers or to redistribute to ~its, requir~ prior sptific permission an&’ora f= lVOl~fOM 98 Dtias TUSA . Copyright Am 1998 1-58113493-7/98/10.-S5.00 b