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This paper describes a reservation protocol to provide real-time services to mobile users in an Integrated Services Packet Network. Mobility of hosts has significant impact on the quality of service provided to a real-time application. The currently proposed network system architecture and mechanisms to provide real-time services to fixed hosts are(More)
This paper considers the support of real-time applications to mobile hosts in an Integrated Services Packet Network. We have proposed a service model for mobile hosts that can support adaptive applications which can withstand wide range of available bandwidth, as well as applications which require mobility independent service guarantees. We describe an(More)
This paper presents the initial design and performance study of MACA-P, a RTS/CTS based MAC protocol that enables simultaneous transmissions in multihop ad-hoc wireless networks. Providing such low-cost multihop and high performance wireless access networks is an important enabler of pervasive computing. MACA-P is a set of enhancements to the 802.11 DCF(More)
Distributed algorithms have hitherto been designed for networks with static hosts. Connectivity of such networks do not change unless hosts or communication links fail. With the introduction of mobile computing, this assumption is no longer valid. A mobile host (MH) can connect to the network from different locations at different times. This raises two(More)
To accommodate mobile hosts (MHs) within existing data networks, the static network is augmented with “mobile support stations” (MSSs) that communicate directly with MHs, usually via wireless links. Connectivity of the overall network changes dynamically as MHs connect to the static network from different “locations” (MSSs) at different times. Compared to(More)
0163-6804/97/$10.00 © 1997 IEEE he rapid worldwide growth of digital wireless communication services motivates a new generation of mobile switching networks to serve as infrastructure for such services. Given the wide range of radio access technologies being deployed for both telephony and Internet access, new mobile switching architectures are needed to(More)
Application-level protocol abstraction is required to support seamless mobility in next generation heterogeneous wireless networks. Session initiation protocol (SIP) provides such an abstraction in providing mobility support in such networks. However, the handoff procedure with SIP suffers from undesirable delay and hence packet loss for some cases, which(More)