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RGSS-Negotiation is a Repaired Genetic Security Service Negotiation approach. Security as a non-functional requirement for web service is an important trend. This is due to the different levels of security the consumer and the provider demand or supply. In a web service negotiation, researchers negotiate QoS objects (attributes). Negotiating security levels is not addressed so far. In this paper,...
In this paper we have considered optimal power allocation for a system model of multiple secondary user (SU) pairs coexisting with a single primary user (PU) pair in a spectrum underlay cognitive radio network. A new Genetic algorithm (GA) based power allocation scheme has been proposed to achieve maximum system utility subject to PU interference constraint and satisfaction of QoS requirement of all...
In distributed, heterogeneous systems, where several deployments of a specific service exist, it is a crucial task to select and combine concrete deployments to build a service chain that can be an arbitrary workflow or a query execution plan. In order to decide between deployments with identical functionality, non-functional properties, also called Quality of Service (QoS) properties, are taken into...
Automation of Web service composition is one of the most important problems in Web service research area. There are numerous methods to achieve Web service composition. This paper describes the use of Asynchronous Teams (A-Teams) algorithm with genetic agents to compose semantic Web services. Specific agents realize the composition of sequential, parallel and synchronization control flow patterns...
For the multi-constrained routing problem, there are several constrained parameters such as the bandwidth, delay, packet loss rate, delay jitter, the QoS parameters influence each other. It has been proved as a NP-Complete problem, traditional linear method often have some difficulties in solving this problem. The application of ant colony algorithm or genetic algorithm often has a slow convergence...
In this paper, an improved genetic algorithm to solve the unicast routing problem with QoS restrictions is proposed. The proposed algorithm uses real-coded strategy, which has unique crossover strategy, mutation strategy and fitness function, and in addition, the strategy of introducing alien species is adopted in the algorithm, in order to enhance the algorithm's global search ability. The simulation...
Web service composition is an important problem in web service based systems. It is about how to build a new value-added web service using existing web services. A web service may have many implementations, all of which have the same functionality, but may have different QoS values. Thus, a significant research problem in web service composition is how to select a web service implementation for each...
Nowadays, the Service-Oriented Architecture (SOA) as well as orchestration technology becomes trend of software development. The benefit of SOA is that we will save cost and time extremely due to the services utilized are already exist and reuse those services as well as integrate them. Currently, the main issues of SOA are how to define workflow as well as how to select the suitable services to perform...
Due to the varying population density, some ISLs of satellite networks are congested while others are underutilized. To satisfy the QoS requirements of multimedia applications, satellite routing protocols should consider the issue of improving the utilization of network resource and providing better QoS guarantees such guaranteed end-to-end delay bound as new call blocking probability (CBP) and handover...
To maximize user satisfaction during composition of web services, a novel genetic algorithm based on a special tree traversal sequence (TTS) coding scheme is presented in this paper. Utilizing the tree traversal information toted by individuals of genetic population and the composite logical information stored in tree composite pattern (TCP), TTS coding scheme can support all the 4 basic models of...
The NoC paradigm is one, if not only one, fit to enable the integration of an exceedingly large number of computational, logical and storage blocks in a single chip. The paper presents a novel technique called CGMAP,which finds a mapping of the vertices of a task graph to the tiles of a mesh based NoCarchitecture, with an objective of improving the Quality of Service (QoS) in networks-on-chip.The...
Qos anycast is a newly rising network communication service, playing an important role in the area of video stream on-demand. Although the DiffServ network QoS anycast routing architecture is very good, the interleaving services problems exist, which makes its service efficiency decline. A QoS anycast network cluster balancing algorithm based on genetic algorithm and scheduler is introduced in this...
The focus of this paper is dynamic link allocation algorithms for sharing the limited link resources of the tracking and data relay satellites (TDRS) system among many burst users with varying quality of service (QoS) requirements. The task of scheduling communications between TDRS link and spacecraft is getting more and more critical since an increasing number of spacecraft must communicate with...
Considering that there are three aspects of constrains in the service selection process, such as control structure within a composition plan, relationship between concrete services, and tradeoff among multiple QoS indexes, a QoS based optimal Web services selection method by multi-objective genetic algorithm is presented. First we design a chromosome coding method to represent a feasible service selection...
Over the last few years, grid technologies have progressed towards a service-oriented paradigm that enables a new way of service provisioning based on utility computing models. Users consume these services based on their QoS (quality of service) requirements. In such ldquopay-per-userdquo grids, workflow execution cost must be considered during scheduling based on users' QoS constraints. In this paper,...
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