نتایج جستجو برای: reservation computer system

تعداد نتایج: 2594338  

Journal: :مطالعات حقوق خصوصی 0
رضا شکوهی زاده استادیار گروه حقوق خصوصی دانشکدۀ حقوق و علوم سیاسی دانشگاه تهران

the main purpose of this article is to determine the nature and effects of reservation of title clauses in iranian law. to bring out the exact comprehension of its nature in iranian law, the study of the matter in other legal systems is required. although it is not always easy to pass upon the question of validity of these clauses in iranian law, by highlighting the security interest in such co...

2001
Andrew T. Campbell

In order to limit hando blocking probability, in cellular systems admission control can be applied to new call requests and resources reserved for future hando attempts. Such resource reservation strategies have been widely studied in the literature. The denial of new call attempts, however, impacts system throughput creating a trade-o with hando performance. The contribution of this paper is a...

1994
Clifford W. Mercer Stefan Savage Hideyuki Tokuda

Multimedia applications have timing requirements that cannot generally be satisfied using time-sharing scheduling algorithms and system structures. To effectively support these types of programs, operating systems must support processor capacity reservation. A capacity reservation and enforcement mechanism isolates programs from the timing and execution characteristics of other programs in the ...

2008
Jae Keun Park Sung Je Hong Jong Kim

In multimedia wireless networks, when a mobile host (MH) moves to a neighbor cell, it requests the base station (BS) to reserve the bandwidth for seamless handoff. The reservation scheme based on the fixed 2-tier cell structure was proposed to prevent the reservation requests from the MHs close to the BSs. In this reservation scheme, the BS requests the reservation only when the MH is outside o...

1999
Krishna M. Sivalingam Jie Wang

This paper studies media access protocols which support collision-free broadcast/multi-cast communication for optically connected star-coupled systems with Wavelength Division Multiple Access channels. An early hybrid access protocol, consisting of reservation and of receiver channels pre-allocation, allows reservation for exactly one WDM channel per node during the reservation phase. We extend...

Journal: :Computer Communications 2013
Malabika Sengupta Swapan Kumar Mondal Debashis Saha

Distributed lightpath establishment in WDM optical networks involves, apart from routing, two important steps, namely wavelength selection and wavelength reservation. In uni-wavelength reservation protocols, often multiple connection requests unknowingly compete for the same wavelength, even when other free wavelengths are available, resulting in a collision. Attempting multiple wavelengths for...

1999
Hao-Hua Chu Klara Nahrstedt

We present the design, implementation, and experimental results of our soft real time (SRT) system for multimedia applications in a general purpose UNIX environment. The SRT system supports several service classes for the real time processes based on their processor usage time pattern: periodic constant processing time(PCPT) class, aperiodic constant processing time(ACPT) class, variable proces...

1998
Werner Almesberger Silvia Giordano Jean-Yves Le Boudec

We analyse and illustrate two approaches that we have developed for providing reservations to ows. The rst approach uses the explicit reservation model: a traac proole is negotiated between users and the network. ATM and RSVP are two examples for this approach. In this paper we describe our experience in the ACT project EXPERT (AC094) with the explicit reservation model in the context of ATM. W...

2007
Zhenqiang Ye Srikanth V. Krishnamurthy Satish K. Tripathi

In wireless cellular networks, a roaming mobile station (MS) is expected to move from one cell to another. It is essential to ensure that, when a MS traverses from one cell to another, an ongoing connection of that MS is not dropped. Pre-reservation schemes allow the reservation of bandwidth for an ongoing call in an adjacent cell before the MS moves into that cell, so that the call is sustaine...

Journal: :Concurrency and Computation: Practice and Experience 2006
Antonella Di Stefano Marco Fargetta Giuseppe Pappalardo Emiliano Tramontana

The dynamics of resource request rates in a Grid system can be wide-ranging, to the point that request peaks for a single resource can be difficult to handle and end up greatly increasing the response time. Once a request has been submitted by a client, this has to cope with the potential overload showing up. However, it is impractical to cure overload once it takes place, by negotiating a diff...

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