73,950 research outputs found
Algorithms for advance bandwidth reservation in media production networks
Media production generally requires many geographically distributed actors (e.g., production houses, broadcasters, advertisers) to exchange huge amounts of raw video and audio data. Traditional distribution techniques, such as dedicated point-to-point optical links, are highly inefficient in terms of installation time and cost. To improve efficiency, shared media production networks that connect all involved actors over a large geographical area, are currently being deployed. The traffic in such networks is often predictable, as the timing and bandwidth requirements of data transfers are generally known hours or even days in advance. As such, the use of advance bandwidth reservation (AR) can greatly increase resource utilization and cost efficiency. In this paper, we propose an Integer Linear Programming formulation of the bandwidth scheduling problem, which takes into account the specific characteristics of media production networks, is presented. Two novel optimization algorithms based on this model are thoroughly evaluated and compared by means of in-depth simulation results
Secure Cloud Communication for Effective Cost Management System through MSBE
In Cloud Computing Architecture, Brokers are responsible to provide services
to the end users. An Effective Cost Management System (ECMS) which works over
Secure Cloud Communication Paradigm (SCCP) helps in finding a communication
link with overall minimum cost of links. We propose an improved Broker Cloud
Communication Paradigm (BCCP) with integration of security issues. Two
algorithms are included, first is Secure Optimized Route Cost Finder (S-ORCF)
to find optimum route between broker and cloud on the behalf of cost factor and
second is Secure Optimized Route Management (S-ORM) to maintain optimum route.
These algorithms proposed with cryptographic integrity of the secure route
discovery process in efficient routing approaches between broker and cloud.
There is lack in Dynamic Source Routing Approach to verify whether any
intermediate node has been deleted, inserted or modified with no valid
authentication. We use symmetric cryptographic primitives, which is made
possible due to multisource broadcast encryption scheme. This paper outlines
the use of secure route discovery protocol (SRDP)that employs such a security
paradigm in cloud computing.Comment: 12 pages, 3 figures, International Journal on Cloud Computing:
Services and Architecture(IJCCSA),Vol.2, No.3, June 201
SAMI: Service-Based Arbitrated Multi-Tier Infrastructure for Mobile Cloud Computing
Mobile Cloud Computing (MCC) is the state-ofthe- art mobile computing
technology aims to alleviate resource poverty of mobile devices. Recently,
several approaches and techniques have been proposed to augment mobile devices
by leveraging cloud computing. However, long-WAN latency and trust are still
two major issues in MCC that hinder its vision. In this paper, we analyze MCC
and discuss its issues. We leverage Service Oriented Architecture (SOA) to
propose an arbitrated multi-tier infrastructure model named SAMI for MCC. Our
architecture consists of three major layers, namely SOA, arbitrator, and
infrastructure. The main strength of this architecture is in its multi-tier
infrastructure layer which leverages infrastructures from three main sources of
Clouds, Mobile Network Operators (MNOs), and MNOs' authorized dealers. On top
of the infrastructure layer, an arbitrator layer is designed to classify
Services and allocate them the suitable resources based on several metrics such
as resource requirement, latency and security. Utilizing SAMI facilitate
development and deployment of service-based platform-neutral mobile
applications.Comment: 6 full pages, accepted for publication in IEEE MobiCC'12 conference,
MobiCC 2012:IEEE Workshop on Mobile Cloud Computing, Beijing, Chin
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