On accommodating mobile hosts in an integrated services packet network

Talukdar, Anup Kumar; Badrinath, B. R.; Acharya, Arup

doi:10.1109/infcom.1997.631122

Cited by 85 publications

(46 citation statements)

References 15 publications

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“…In MRSVP . A passive reservation reserves resources in advance at a neighbour et al introduced by Talukdar was , reservation passive a called reservation, advance an [5,6], of the current cell, but no traffic is delivered on it until it is activated after the MH's handoff. With those passive reservations, the QoS degradation due to establishment of a new RSVP session after a handoff can be eliminated.…”

Section: Related Workmentioning

confidence: 99%

“…In SARAH, an advance reservation, called pseudo reservation, is used in place of the passive reservation in MRSVP [5,6]. A pseudo reservation session is established and released using RSVP path, resv, and path teardown messages [1] as the same way as a normal RSVP session.…”

Section: Sarah Overviewmentioning

confidence: 99%

“…There have been a number of approaches [4][5][6][7][8][9][10] to address the aforementioned problems. Mobile RSVP (MRSVP) [5,6] introduced an advance resource reservation, called passive reservation, to adapt RSVP to the mobile Internet.…”

Section: Introductionmentioning

confidence: 99%

“…Mobile RSVP (MRSVP) [5,6] introduced an advance resource reservation, called passive reservation, to adapt RSVP to the mobile Internet. A drawback of the approach is that the excessive passive reservations waste network resources.…”

Section: Introductionmentioning

confidence: 99%

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Selective advance reservations based on host movement detection and resource‐aware handoff

Lee¹,

Kim²,

et al. 2006

Int J Communication

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This paper proposes a new mechanism, which addresses the excessive advance reservation requirements of QoS guarantee methods for mobile Internet. To save resources for excessive advance reservations, the proposed mechanism employs a movement detection scheme for a mobile host (MH) using link‐layer functionalities. With the movement detection scheme, advance reservations can be established at only where a MH is likely to visit soon. Another novel feature of our mechanism is resource‐aware handoff direction scheme that allows a MH to choose its next BS according to not only the link‐layer signal strength, but also the available amount of resources in the reachable base stations (BSs). It considerably decreases a probability that QoS is disrupted due to the failure in advance reservation request. Also, the proposed mechanism requires fewer functional and structural changes to the current Internet components and protocols since all the enhanced features are integrated only into leaf BSs and MHs. It does not suffer from the problems of the conventional approaches based on Mobile IP and RSVP Tunnel, such as non‐optimal routing path and signalling overhead. Our experiment results show that the proposed mechanism successfully eliminates the overhead for useless advance reservations while guaranteeing seamless QoS for MHs. The performance comparison demonstrates that our mechanism slightly outperforms the conventional approaches while requiring fewer modifications and additions to the existing Internet architecture. This performance advantage of the proposed mechanism becomes noticeable when the network is congested and the mobility of a host is high. Copyright © 2006 John Wiley & Sons, Ltd.

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Section: Related Workmentioning

confidence: 99%

Section: Sarah Overviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Selective advance reservations based on host movement detection and resource‐aware handoff

Lee¹,

Kim²,

et al. 2006

Int J Communication

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“…This service would require advance reservation in all cells the user might visit (as specified via e.g. the mobility profile) [5]. 2.…”

Section: Service Classes (A) Guaranteed Versus Predictivementioning

confidence: 99%

Adaptive Service in Mobile Computing Environments

Lee

Bharghavan

1997

Building QoS Into Distributed Systems

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Emerging communication-intensive applications require significant levels of networking resources for efficient operation. In the context of mobile computing environments, limited and dynamically varying available resources, stringent application requirements, and user mobility make it difficult to provide sustained quality of service to applications. This paper addresses the above issues, and proposes a new service model in cellular mobile computing environments. The major results of this paper are the following:• An Adaptive Service model in mobile computing environments, which enables the network and applications to adaptively (re)negotiate QoS depending on dynamic network conditions • An algorithmic framework that provides cost-effective resource adaptation in the presence of resource and network dynamics • A unified implementation architecture for adaptive service support A brief overview of an ongoing testbed implementation is provided.

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Mobility Management

2009

Advanced Wireless Networks

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INTRODUCTIONAs already indicated in Chapter 1 (see Figure 1.1), 4G wireless networks will integrate services of different segments such as cellular networks, WLAN, WPAN and even LEO satellites. Several alternative backbone networks will be used, like the public land mobile networks (PLMN), mobile Internet protocol (mobile IP) networks, wireless asynchronous transfer mode (WATM) networks, and low Earth orbit (LEO) satellite networks. Regardless of the network, one of the most important and challenging problems for wireless communication and computing is mobility management . Mobility management enables telecommunication networks to locate roaming terminals for call delivery and to maintain connections as the terminal is moving into a new service area, process known as handoff. The handoff may be executed between different segments (cells) of the same or different systems. The handoff event is caused by radio link degradation or initiated by the system that rearranges radio channels in order to avoid congestion. Our focus in this section is on the first kind of handoff, where the cause of handoff is poor radio quality due to a change in the environment or the movement of the wireless terminal. For example, the mobile user might cross cell boundaries and move to an adjacent cell while the call is in process. In this case, the call must be handed off to the neighboring cell in order to provide uninterrupted service to the mobile subscriber. If adjacent cells do not have enough channels to support the handoff, the call is forced to be blocked. In systems where the cell size is relatively small (microcellular systems), the handoff procedure has an important effect on the performance of the system. Here, an important issue is to limit the probability of forced call termination, because from the point of view of a mobile user, forced termination of an ongoing call is less desirable than blocking a new call. Therefore, the system must reduce the chances of unsuccessful handoffs by reserving some channels explicitly for handoff calls. For example, handoff prioritizing schemes are channel assignment strategies that allocate channels to handoff requests more readily than new calls.Thus, mobility management supports mobile terminals, allowing users to roam while simultaneously offering them incoming calls and supporting calls in progress. Mobility management consists of location management and handoff management.Location management is a process that enables the network to discover the current attachment point of the mobile user for call delivery. The main components of the process are shown in Advanced Wireless Networks: Cognitive, Cooperative and Opportunistic 4G Technology Second Edition Savo Glisic and Beatriz Lorenzo

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On accommodating mobile hosts in an integrated services packet network

Cited by 85 publications

References 15 publications

Selective advance reservations based on host movement detection and resource‐aware handoff

Selective advance reservations based on host movement detection and resource‐aware handoff

Adaptive Service in Mobile Computing Environments

Mobility Management

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