CORAL(CoOperative Remote Access Learning) system, a WWW-based distant and cooperative learning system, was originally developed with a single-server architecture. Currently some organizations and schools may own self CORAL servers to provide the distance learning for their employees and students. However, the original design of the single-server architecture cause no linkages between these CORA...

This paper presents the design of a new Web server architecture called the asymmetric multi process event driven AMPED architecture and evaluates the performance of an implementation of this architecture the Flash Web server The Flash Web server combines the high performance of single process event driven servers on cached workloads with the performance of multi process and multi threaded serve...

Cooperative knowledge areas are a well-proved approach to support process of cooperative work and ELearning. The Paderborn Open-Source system sTeam establishes cooperative knowledge spaces so far as a single server implementation. This paper presents our architecture of distributed cooperative knowledge areas. The main conceptual idea of the sTeam system is a combination of a document managemen...

This study presents a test of the long short term memory (LSTM) algorithm on traffic prediction with multi edge server and cloud architectures. IoT sensors located roadside such as cameras location data each driver are used stored in center. When sends travel time request to nearby server, predictions will be made or server. Server selection is based destination driver's request. If area, Howev...

In a mobile environment, maintaining cache consistency is challenging. Applying one type of consistency levels either strict or weak is not suitable all the time, as the consistency requirements mainly depend on the mobile application system and differ from one to another. Also forcing the mobile client to use its cache data for the purpose of reading only limits the functionality of the cachin...

Many applications in Multi-access Edge Computing (MEC) consist of interdependent tasks where the output some is input others. Most existing research on computational offloading does not consider dependency task and uses convex relaxation or heuristic algorithms to solve problem, which lacks adaptability suitable for dynamic environment fast fading channels. Therefore, this paper, optimization p...

In the Internet, multimedia services, such as video streaming, TV conference, should be supported by multicast communications, i.e. IP multicast, in order to reduce total bandwidth necessary for distributing streaming programs. Below data-link layer, IP can use any network technology and ATM is the most promising one for a backbone network. IP multicast is based on the connection-less communica...

This paper analyzes an M/M/2 queueing system with two heterogeneous servers. Both servers goes on vacation when there is no customers waiting for service after this server 1 is always available but the other goes on vacation whenever server 2 is idle. The vacationing server however, returns to serve at a low rate as an arrival finds the other server busy. The system is analyzed in the steady st...

A multi-clip query requests multiple video clips. In this paper we address the multi-clip query optimization problem. We propose a new heuristics called Restricted Search Interval that maximizes clip sharing between queries and consequently reduces the workload of the video server. The experimental results show that the suggested heuristics reduces the server workload by about 68.7% in comparis...