Inter-operator roaming scenarios for third generation mobile telecommunication systems

Markoulidakis, J.G.; Lyberopoulos, George; Tsirkas, D.F.; Sykas, Efstathios D.

doi:10.1109/iscc.1997.616076

Cited by 8 publications

(8 citation statements)

References 3 publications

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“…P b,s is given by: (17) We also have (18) For C 1 + C 2 > C, P b,n represents the blocking probability for new calls when i = C − C 1 , j ≤ C − C 2 and k < C 1 − j. P b,s is the blocking probability of the SM call arrivals when j = C − C 2 , i ≤ C − C 1 and k < C 2 − i. P b,h is the blocking probability of the handoff call arrivals when i + j + k = C, i ≤ C − C 1 and j ≤ C − C 2 . These probabilities are given by: (19) where …”

Section: Call Blocking Probabilitymentioning

confidence: 99%

Enabling Network Convergence Through Contextual Session Mobility With IMS

Dragoi¹,

Kara²,

Aı̈ssa³

2011

IJMA

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Section: Call Blocking Probabilitymentioning

confidence: 99%

Enabling Network Convergence Through Contextual Session Mobility With IMS

Dragoi¹,

Kara²,

Aı̈ssa³

2011

IJMA

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“…Application-level roaming agreements are similar to network-level roaming agreements (e.g., [10,21]), but they only address application-level issues (see Section 2.3). A roaming agreement does not include user-specific information.…”

Section: Mobilitymentioning

confidence: 99%

Delivering Live Multimedia Streams to Mobile Hosts in a Wireless Internet with Multiple Content Aggregators

et al. 2005

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Abstract.We consider the distribution of channels of live multimedia content (e.g., radio or TV broadcasts) via multiple content aggregators. In our work, an aggregator receives channels from content sources and redistributes them to a potentially large number of mobile hosts. Each aggregator can offer a channel in various configurations to cater for different wireless links, mobile hosts, and user preferences. As a result, a mobile host can generally choose from different configurations of the same channel offered by multiple alternative aggregators, which may be available through different interfaces (e.g., in a hotspot). A mobile host may need to handoff to another aggregator once it receives a channel. To prevent service disruption, a mobile host may for instance need to handoff to another aggregator when it leaves the subnets that make up its current aggregator's service area (e.g., a hotspot or a cellular network). In this paper, we present the design of a system that enables (multi-homed) mobile hosts to seamlessly handoff from one aggregator to another so that they can continue to receive a channel wherever they go. We concentrate on handoffs between aggregators as a result of a mobile host crossing a subnet boundary. As part of the system, we discuss a lightweight application-level protocol that enables mobile hosts to select the aggregator that provides the 'best' configuration of a channel. The protocol comes into play when a mobile host begins to receive a channel and when it crosses a subnet boundary while receiving the channel. We show how our protocol can be implemented using the standard IETF session control and description protocols SIP and SDP. The implementation combines SIP and SDP's offer-answer model in a novel way.

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“…Traffic modeling in wireless telecommunication system has to deal with two main issues, the Radio Resource Management (RRM) scheme and the effect of the user mobility on the traffic volume per cell [14,22,34]. Data traffic in wireless telecommunication networks is emerging like one of aspects more important in third generation networks planning [13,16,33,35].…”

Section: Introductionmentioning

confidence: 99%