Igor Ljubi

A self-optimizing mobile network: Auto-tuning the network with firefly-synchronized agents

The reduction of cost and complexity is a key driver in the evolution of mobile networks. This reduction not only applies to the pre-operational state (e.g. the deployment phase of a new network), but to the operational state as well. During the operational state, self-optimization processes can be performed to reduce the operating expenses (OPEX) of telecommunications operators. In this paper, we propose an agent-based mechanism for auto-tuning mobile networks with the aim of achieving energy savings in access networks. Firefly-based synchronization is used for the coordination of mutually dependent software agents located at the operators base stations. Once synchronized, agents can act together to obtain a global goal - i.e. the reduction of the telecommunications operators costs without reducing the quality of the provided services for mobile users. These agents build a self-organized overlay network where neither centralized nor decentralized control is needed and, therefore, is more robust.

Mobile agent based software operation and maintenance

The paper deals with a mobile agent based software operation and maintenance. Remote maintenance shell is described as the protected environment allowing software installation, modification and verification on the remote target system, without suspending its regular operation. It is based on the remote operations performed by mobile agents. Multiagent system with collaborative mobile agents, supporting software maintenance, and its architecture are elaborated. Remote maintenance shell implementation in one maintenance session is included.

Improving software maintenance by using agent-based remote maintenance shell

The paper deals with a method developed for software maintenance called remote maintenance shell. It allows software installation, modification and verification on the remote target system without suspending its regular operation. The method is based on remote operations performed by mobile agents. The role of remote maintenance shell in software maintenance is elaborated, as well as its architecture. A case study on version replacement of an object-oriented application is included.

Cooperative mobile agents for automation of service provisioning: A telecom innovation

This paper presents the application of cooperative mobile agents in service provisioning processes characteristic for Next-Generation Network (NGN). The advent of the NGN transforms traditional end-to-end approach to service provisioning towards a consumer-centric model. In a highly competitive market, telecom companies have to envision customers’ future needs and rapidly develop and provide value-added services. Authors propose a semantically enhanced solution of the service provisioning process, where designed model automates complete service provisioning lifecycle in the NGN. Proof-of-concept prototype is deployed into 3G network and enables network operators to enhance their provisioning process with features of proactivity, semantic-awareness and consumer context-awareness.

Mobile agent-based software management in grid

This paper presents a method called Remote Maintenance Shell (RMS), developed for software management in large distributed environments. It allows software upgrading, testing and maintenance of several versions on a remote target system without suspending its regular operation. The method is based on the remote operations performed by cooperative mobile agents. A case study of software upgrading in the grid system is elaborated.

Mobile agent based distributed Web management

This paper presents a distributed World Wide Web management model based on mobile agents. The model includes a distributed Web server system and a multi-agent system which is responsible for its management. Solving a Web management problem requires a whole lot of tasks. The paper defines a multi-agent system operating on behalf of a Webmaster, specifies formal models, management tasks and management knowledge, and gives a case study describing an agent Webmaster.

Agent-Based Support for Context-Aware Provisioning of IMS-Enabled Ubiquitous Services

Multimedia applications executed on mobile devices allow users to be present and communicate with other users, anywhere and anytime, through wide area cellular networks, wireless local area networks (WLAN), or fixed networks. In order to enable ubiquitous personalized services, communication systems should allow users to specify their context, or their mobile devices and network infrastructures should automatically sense their context and offer enhanced service provisioning solutions. In this paper, we propose an agent-based solution that supports context-aware provisioning of IP multimedia subsystem (IMS)-enabled ubiquitous services. Using agent technology, multimedia communication, controlled by SIP and enriched with context-related events delivered by SIPs event mechanism, can be seamlessly provisioned, taking into account not only mobility issues and context-awareness, but also the semantics of exchanged events. This paper proposes a multi-agent system that will enable users to consume context-aware ubiquitous services in a seamless (i.e., automated) way, providing optimal provisioning of SIP-based multimedia services according to user preferences.

An agent-based user selection method for business-aware service provisioning

Third generation network operators are facing the issue of having to introduce new, personalized services to their users, while at the same time they have to increase revenue and cut down the operating costs to survive the increasing competition on the telecom market. Intelligent software agents can act on behalf of the network operator to allow the operator much more flexibility and a quicker adaptation to volatile conditions that dominate in a competitive telecom market. In this paper authors propose a new scenario for automated business driven service provisioning process. It utilizes the agent technology and the operators business support system to provide the list of potential users during the planning phase of the service provisioning process.

Mobile Agent-Based System for Distributed Software Maintenance

The evolution of today’s computing environments towards heterogeneous distributed systems introduces specific challenges to the area of software maintenance and testing. Software maintenance on emerging telecommunication systems that are distributed over a wide area is a hard task because it is not easy or even possible to perform final testing on a remote target system, as well as on system in operation.