An architecture and methodology for mobile-executed cell hand-off in wireless ATM networks

Acampora, A.S.; Naghshineh, M.

doi:10.1007/3-540-57856-0_50

Cited by 30 publications

(12 citation statements)

References 16 publications

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“…Similar to the channel assignment policy used in [2,4,5] for cluster-based micro/picocellular wireless networks without cluster overlapping, the channel assignment policies proposed in this paper consists of two levels, namely, cell and cluster levels. The clusters in the systems considered in [2,4,5] do not overlap with each other.…”

Section: T H E C H a Nnel As S Ignment Policiesmentioning

confidence: 98%

“…This will in turn increase the overheads for processing hand-off events. To reduce the overheads due to frequent hand-off, Acampora and Naghshineh [2,3] proposed a solution based on a virtual connection tree concept. A virtual connection tree is a collection of connections from a fixed node of the wired network to a group of adjacent base stations.…”

Section: Introductionmentioning

confidence: 99%

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Channel Assignment and Hand-off Policies in Cluster-Based Micro/ Picocellular Wireless Networks

Lin¹,

Tzeng

2006

Wireless Pers Commun

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In this paper, we consider cluster-based micro/picocellular networks with overlapped cell-clusters. Channel assignment and hand-off policies are essential and important policies in cellular wireless networks. The issue of how different channel assignment and hand-off policies in the overlapped areas affect the overall system performance has not yet been studied in the literature. This paper provides a thorough study and understanding of this issue. We propose two cluster channel assignment policies, namely, partitioned and shared cluster channel assignment policies, and two hand-off policies, namely, boundary and early hand-off policies. The proposed cluster channel assignment policies and hand-off policies are combined to obtain three different strategies, namely, partitioned-boundary, partitioned-early, and shared-boundary strategies. Extensive simulations are used to study the performance of the strategies. Our results show that the partitioned-early and shared-boundary strategies produce significantly lower hand-off dropping and forced termination probabilities than the partitioned-boundary strategy. The partitioned-early and shared-boundary strategies yield similar performance.

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Section: T H E C H a Nnel As S Ignment Policiesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Channel Assignment and Hand-off Policies in Cluster-Based Micro/ Picocellular Wireless Networks

Lin¹,

Tzeng

2006

Wireless Pers Commun

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“…We define a residence time probability density function (pdf) matrix for mobile terminal in cell . The matrix has the general form (1) where , for , is the pdf of the residence time of mobile terminal in cell , given that the mobile terminal enters the cell through side , and leaves the cell through side , and given that the mobile terminal does not turn around. Thus, there are pdf's for each direction of travel.…”

Section: A Calculation Of Active Mobile Probabilities For One-dimensmentioning

confidence: 99%

“…The mechanism does not require the use of wireless resources. Since future base stations are likely to be linked by switches which use high-bandwidth optical fiber [1], and since the shadow cluster algorithms' cycle time is likely to be in the order of several seconds [5], the amount of extra information generated by the mechanism should be easily manageable by the wireline network. This paper is organized as follows.…”

mentioning

confidence: 99%

A resource estimation and call admission algorithm for wireless multimedia networks using the shadow cluster concept

Levine

Akyildiz

Naghshineh

1997

IEEE/ACM Trans. Networking

541

282

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Abstract-The shadow cluster shadow cluster shadow cluster concept can be used to estimate future resource requirements and to perform call admission decisions in wireless networks. Shadow clusters can be used to decide if a new call can be admitted to a wireless network based on its quality-of-service (QoS) requirements and local traffic conditions. The shadow cluster concept can especially be useful in future wireless networks with microcellular architectures where service will be provided to users with diverse QoS requirements. The framework of a shadow cluster system is completely distributed, and can be viewed as a message system where mobile terminals inform the base stations in their neighborhood about their requirements, position, and movement parameters. With this information, base stations predict future demands, reserve resources accordingly, and admit only those mobile terminals which can be supported adequately. The shadow cluster concept involves some processing and communication overheads. These overheads have no effect on wireless resources, but only on the base stations and the underlying wireline network. In this paper, it is shown how base stations determine the probabilities that a mobile terminal will be active in other cells at future times, define and maintain shadow clusters by using probabilistic information on the future position of their mobile terminals with active calls, and predict resource demands based on shadow cluster information. In addition, a call admission algorithm is introduced, which uses current traffic and bandwidth utilization conditions, as well as the amount of resources and maximum allowable "dropping probability" being requested. Performance results showing the advantages of the shadow cluster concept are also included in the paper.Index Terms-Active mobile probability, call admission, resource allocation, shadow cluster.

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“…A cluster of contiguous picocells would thereby serve a large population of users, each of whom is served via a home or office picocellular base station. A packet mode of wireless access, similar to if not identical to the asynchronous transfer mode (ATM), supports the bandwidth-upon-demand needs of multimedia traffic [6], and imbedded virtual connection trees maintain quality-of-service guarantees while permitting rapid, decentralized handoff of live connections among adjacent picocells [7]- [10].…”

mentioning

confidence: 99%

UniNet: a hybrid approach for universal broadband access using small radio cells interconnected by free-space optical links

Acampora

Bloom²,

Krishnamurthy³

1998

IEEE J. Select. Areas Commun.

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Abstract-A new type of broadband access system is proposed for providing high-quality, bandwidth-upon-demand telecommunication services to the home and office. Communication terminals attach to the network via short radio links, and users can roam freely within a house or building unencumbered by the availability of wired "telecommunications outlets." Basic service is extended through small, high-capacity radio cells; the base stations are interconnected via short, highly focused free-space optical links in a multihop mesh arrangement; and the need for new broadband access cabling is totally surmounted. A tiered arrangement of radio cells further extends service to both out-ofbuilding pedestrian and vehicular users, and service is universally available.Benefits of the approach are described, and issues involving reliability, availability, capacity, and hand off are identified and addressed. Opportunities to refine the basic approach are suggested for further study.Index Terms-Broadband networks, local access, wireless communications.

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An architecture and methodology for mobile-executed cell hand-off in wireless ATM networks

Cited by 30 publications

References 16 publications

Channel Assignment and Hand-off Policies in Cluster-Based Micro/ Picocellular Wireless Networks

Channel Assignment and Hand-off Policies in Cluster-Based Micro/ Picocellular Wireless Networks

A resource estimation and call admission algorithm for wireless multimedia networks using the shadow cluster concept

UniNet: a hybrid approach for universal broadband access using small radio cells interconnected by free-space optical links

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