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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 presents the initial design and performance study of MACA-P, a RTS/CTS based MAC protocol that enables simultaneous transmissions in multi-hop ad-hoc wireless networks. Providing such low-cost multi-hop 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)
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(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)
A router in wired network typically requires multiple network interfaces to act as a router or a forwarding node. In an ad-hoc multi-hop wireless network on the other hand, any node with a wireless network interface card can operate as a router or a forwarding node, since it can receive a packet from a neighboring node, do a route lookup based on the(More)
This paper deals with multicasting in an internetwork with mobile hosts, particularly with regard to Mobile-IP [11] and Distance Vector Multicast Routing (DVMRP) [10, 9] protocols. When the source of a multicast datagram is a mobile host (MH), the datagram may not reach all group members to which the datagram is addressed, including other mobile hosts. When(More)
This paper presents the detailed design and performance analysis of MACA-P, a RTS/CTS based MAC protocol, that enables simultaneous transmissions in wireless mesh networks. The IEEE 802.11 DCF MAC prohibits any parallel transmission in the neighborhood of either a sender or a receiver (of an ongoing transmission). MACA-P is a set of enhancements to the(More)
This paper considers the support of real-time services to mobile users in an Integrated Services Packet Network. In the currently existing architectures, the service guarantees provided to the mobile hosts are mobility dependent, i.e. mobile hosts experience wide variation in the Quality of Service and often service disruption when hosts move from one(More)
The integration of mobile/portable computers within existing static networks introduces a new set of issues to distributed computations. A mobile host can connect to the network from different locations at different times; distributed algorithms therefore, cannot rely on the assumption that a participant maintains a fixed and universally known location in(More)