Mobile Agent Model Research Articles

Mobile Agent Based Project Management System

Scientific and technological schedule makes the products’ life cycles be becoming shorter. The companies should make product research and putting into the market more rapidly. Product rapid development and popularization depends on project management, and project schedule optimization is the core of project management. The structure of the project schedule optimization was detailed analysis and mobile agent was import in project schedule optimization system. The event model of mobile agent, the moving process, the model of aglet and the implement method of mobile agent in project schedule optimization system were introduced. This analysis shows the mobile agent the internal structure and negotiation algorithm abundantly. It will play a guiding role for the development of the whole project schedule optimization system and the application of the mobile agent in the project schedule optimization system.

Probabilistic normed load monitoring in large scale distributed systems using mobile agents

Due to rapid advancements and developments in computing platforms, there is a tremendous growth in heterogeneous distributed systems involving mobile devices. In distributed systems, achieving better performance and efficient utilization of shared resources are dependent on appropriate load monitoring mechanisms. In large-scale distributed systems, performing load monitoring is a challenging task and, it effects in increasing response time degrading system performance. In this paper, we have developed and implemented mobile agent-based load monitoring system intended to large-scale distributed systems. Mobile agent based design is an attractive approach for load monitoring in large-scale distributed systems, because mobile agents are autonomous, goal-driven, reactive to environmental changes and, lightweight piece of program. In this paper, a detailed software architectural design for mobile agent based load monitoring system is presented. The design is based on a probabilistic normed estimation model and corresponding monitoring algorithms. The experimental evaluations and scalability analysis presented in this paper illustrate the behavior of agents and performance of the system under different load conditions. Moreover, a detailed qualitative as well as quantitative analysis of various mobile agent models are presented.

A New Scalable, Distributed, Fuzzy C-Means Algorithm-Based Mobile Agents Scheme for HPC: SPMD Application

The aim of this paper is to present a mobile agents model for distributed classification of Big Data. The great challenge is to optimize the communication costs between the processing elements (PEs) in the parallel and distributed computational models by the way to ensure the scalability and the efficiency of this method. Additionally, the proposed distributed method integrates a new communication mechanism to ensure HPC (High Performance Computing) of parallel programs as distributed one, by means of cooperative mobile agents team that uses its asynchronous communication ability to achieve that. This mobile agents team implements the distributed method of the Fuzzy C-Means Algorithm (DFCM) and performs the Big Data classification in the distributed system. The paper shows the proposed scheme and its assigned DFCM algorithm and presents some experimental results that illustrate the scalability and the efficiency of this distributed method.

Secure mobile agent-based English auction protocol using identity-based signature scheme

In this paper, we present a mobile English auction agent model MoEAAM, a next generation E-Auction that allows mobile agents to navigate on E-Auction houses and participate in auctions on the user's behalf even when the user is disconnected from the network. This reduces network latency and bandwidth consumption. Furthermore, MoEAAM provides many significant benefits. These include: mobility, high reactivity, anonymity and privacy for buyers; on-shelf mechanism for seller; high revenue and dispute protocol for auction houses. MoEAAM is designed based on identity-based signature scheme, which allows mobile agents to participate anonymously, and to ensure their privacy and confidentiality. MoEAAM offers strong security without sacrificing efficiency. Indeed, the analyses demonstrate that the computational costs and communication overheads in our protocol are reduced significantly while ensuring system security.

The Study of the Trust Mechanism Based on Mobile Agent in the E-Commerce Agricultural Commodity Trade

This paper has proposed a trust-based security mechanism that aims at the security threat facing the host during the transmission of the mobile agent in agricultural commodity trade. Mobile agent is a program that can autonomously migrate between heterogeneous network hosts. Mobile agent has the characteristics of mobility, autonomy, intelligence, flexibility and other characteristics, making it have wide prospects of application in electronic commerce. Because of the characteristics of mobile agent, its security issues have never been solved well. With the continuous development of mobile agent, mobile agent security has become a vital constraint towards further development of mobile agent technology. A new trust algorithm has been designed for the trust mechanism. By combining the trust mechanism with the model of mobile agent, this paper has realized the trust mechanism in the E-commerce system based on mobile agent.

Percolation and cooperation with mobile agents: geometric and strategy clusters.

We study the conditions for persistent cooperation in an off-lattice model of mobile agents playing the Prisoner's Dilemma game with pure, unconditional strategies. Each agent has an exclusion radius r(P), which accounts for the population viscosity, and an interaction radius r(int), which defines the instantaneous contact network for the game dynamics. We show that, differently from the r(P)=0 case, the model with finite-sized agents presents a coexistence phase with both cooperators and defectors, besides the two absorbing phases, in which either cooperators or defectors dominate. We provide, in addition, a geometric interpretation of the transitions between phases. In analogy with lattice models, the geometric percolation of the contact network (i.e., irrespective of the strategy) enhances cooperation. More importantly, we show that the percolation of defectors is an essential condition for their survival. Differently from compact clusters of cooperators, isolated groups of defectors will eventually become extinct if not percolating, independently of their size.

Evaluation and Analysis of Novel Mobile Agent Model in Network Fault Management

Network fault management aims at detecting and avoiding network problems, and thus at increasing a network's availability, keeping downtimes to a minimum, and improving network performance. It is a most important in network management and also in the research area of mobile agent technology. Models of mobile agent technology and the traditional SNMP (Simple Network Management Protocol) - Based C/S (Client/Server) are facing a lot of problems, such as availability, flexibility and scalability of network, traffic bottleneck, etc., with the increasing of network size, complexity and heterogeneity. The novel mobile agent model can improve these deficiencies and work better to achieve distributed network management. The network fault management save network bandwidth reduces latency, increase the reliability, and improve management efficiency. This paper provides the evaluates and analyses the performance of a network fault management in terms of average network traffic, cost spent the processing of nodes of the novel mobile agent model for unlimited nodes and also data access algorithms with the models of mobile agent technology with limited nodes and the traditional SNMP-Based client server system which is proved with the mathematical formulae and experimental results.

Research on Migration Strategy of Mobile Agent in Wireless Sensor Networks

Big data and distributed computing are of great importance in wireless sensor networks (WSNs). They are always bonded together, and the latter one upholds the former one. In distributed computing, mobile agent model is the mainstream technology. With autonomy, communicativeness, mobility, and role, mobile agent model is more suitable for large-scale, resources-restrained WSN to deal with big data. This paper mainly studies migration schemes for mobile agents, determines core factors of migration strategy, and proposes SMLA and DMLA algorithms. And aiming at revealing the characteristics of target tracking, this paper puts forward pid-DMLA algorithm; and considering multiple agents' cooperation, it presents Mpid-DMLA algorithm. Moreover, this paper evaluates and analyzes the advantages and disadvantages of the above-mentioned four algorithms by simulations.

Developing Mobile Agent for Intrusion Detection

Mobile agent is a certain agent actively able to move from one computer to another or even travel across network to perform the task assigned. This research aimed to develo p mobile agent model to detect distributed intrusion (Distributed Intrusion Detection System). It was expected that the produced model was able to perform its task in nearly real time manner, to be immune against attack, and also fairly small overhead atthe host, either in memory consumption or CPU usage. In this research, the Aglets concept was also developed to aid intrusion detection. This approach was also maintained to solve certain issues such as scalability, reliability, and configurability. Hence , the advantages and limitations of agent -based approaches will be when it is applied in real world.

Distributed mobile agent model for multi area power systems automated online state estimation

The main objective of this paper is to construct a mobile agent model in a distributed environment through which the state estimation solutions of multi-area power systems can be monitored and controlled. In the proposed model for state estimation, a mobile agent is created which enables the mobility of the state estimation executable code to the neighbouring power system client host. A single server (main container)/multi client (sub container) based architecture which enables the power system clients to access the state estimation mobile agent at its own framework with their respective data and to get the state estimation solutions. A distributed agent model has been implemented in such a way that for every specific period of time, the state estimation agent migrates from one power system client to another to obtain the system data and the estimated system state have been sent back to the respective clients in a heterogeneous environment. The state estimation agent creates a new thread of control for every client’s request and hence the complete distributed environment is exploited.

The network model of mobile agents with the human mobility

Based on the research of the human mobilety patterns, a random-walker network model is used to explain the empirical results on the networks of mobile agents, and shows a possible evolution mechanism of these networks. The simulation results show that the degree distribution of this network takes Poisson distribution, and it exhibits the small-world behavior. Moreover, we present a numerical investigation on the displacements of the mobile agents, and find that the distribution of displacements takes power-law. Our numerical results are in good agreement with the empirical results on the human travel from the trajectories of human bank notes.

Mobile personal information management agent: Supporting natural language interface and application integration

Managing personal information such as to-dos and contacts has become our daily routines, consuming more time than needed. Existing PIM tools require extensive involvement of human users. This becomes a problem in using mobile devices due to their physical constraints. To address the limitations of traditional PIM tools, we propose a model of mobile PIM agent (PIMA) that aims to improve PIM on mobile devices through natural language interface and application integration. We conducted a user study to evaluate PIMA empirically with prototype systems. The results show that mobile PIMA improved perceived usefulness, ease-of-use, and efficiency of PIM on mobile devices, which in turn accounted for positive attitude and intention to use the system. The findings of this study provide suggestions for designing and developing PIM applications on mobile devices.

Application Research of Mobile Agent Technology Based on Windows Platform

Mobile computing is thought as one of four technologies that have a great effect on the future. First, Analying major technology of traditional mobile agent based on JAVA, such as migration technology, communication mechanism ,and etc, a new model of mobile agent on WinCE platform of Microsoft, WinMas, is presented. Next, the advantage of the mobile agent system-WinMas by comparing with the mobile agent system-Aglet is introduced. A new migration mechanism for mobile agents, namely, the utility of RPC Serialization and the far thread insertion mechanism has proposed. Finally, Application example has given, WinMas is successfully applied to Wireless Real Time Supervisor System in Oil-gas field.

Simulation of Dynamic Mobile Agent Model to Prevent Denial of Service Attack using CPNS

Agents are soft wares migrating from one node to another to fulfill the task of its owner. In Static mobile agents, agent travels on the predefined path whereas in Dynamic mobile agents, agent route is decided by the host or the agent itself, which makes security much more difficult in it. Mobile agents are not properly utilized because of security concerns. Security becomes more challenging in Dynamic mobile agents as compared to Static mobile agent. One such challenge is ‗Denial of Service', in it the malicious host may deny resources required by the agent and kill the agent, thus the result computed so far is lost and this may happen every time the agent visits any malicious host. Colored Petri Nets (CPNs) is a language for the modeling and validation of systems in which concurrency, synchronization and communication play a major role. In our previous paper we have simulated and obtained the results for static mobile agent but in real world agents are dynamic. This paper simulates dynamic mobile agent model that enables the owner of the agent to detect the malicious host. The simulation has been done using CPNs, the result clearly proves that owner can detect the malicious hosts and thus prevent Denial of service attack to occur in future

An agent-based English auction protocol using Elliptic Curve Cryptosystem for mobile commerce

Rapid development of the Internet and the extensive use of mobile phones have increased demand for mobile devices in Internet auctions. This trend is acting as an incentive to develop an auction model for mobile-based environment. Recently, Kuo-Hsuan Huang proposed a mobile auction agent model (MoAAM), which allows the bidders to participate in online auctions through a mobile agent. He used modular exponentiation operations in his method. As a result, the processing time for key generation, bidding, and verification were long. Thus, we propose to add the concept of Elliptic Curve Cryptosystem (ECC) onto MoAAM, because ECC has low computation amount and small key size, both of which will aid to increase the speed in generating keys, bidding, and verification. In terms of reduction of computation load on mobile devices and auction-manager server, the proposed method will make online auction system more efficient as well as more convenient to use. This paper mainly uses the English auction protocol as the key auction protocol. The protocol consists of four entities: Registration Manager (RM), Agent House (AH), Auction House (AUH), and Bidders (B). The Registration Manager registers and verifies Bidder identity. The Agent House manages the agents and assigns public transaction keys to Bidders. The Auction House provides a place for auction and maintains all necessary operations for a smooth online auction. Bidders are buyers who are interested in purchasing items at the auction. Our proposed method conforms to the requirements of an online auction protocol in terms of anonymity, traceability, no framing, unforgetability, non-repudiation, fairness, public verifiability, unlinkability among various auction rounds, linkability within a single auction round, efficiency of bidding, one-time registration, and easy revocation.

Study on Architecture Application of Distributed System Based on Mobile Agent and ICE Model

Study on Architecture Application of Distributed System Based on Mobile Agent and ICE Model

An efficient date-constraint hierarchical key management scheme for mobile agents

The core competencies of a mobile agent includes its ability to roam freely in different Internet environments, its ability to adapt itself to various types of online servers depending on the characteristics of said server, and its ability to detect its environment and automatic adaptation to said environment while executing the tasks that are assigned by the users. Because of these competencies, the concept of mobile agent is widely used in many different fields, such as Internet business, wireless communication, and information security technologies. Akl and Taylor (1983) suggested the concept of superkey to resolve the key management issues faced by the mobile agent. Later, Volker and Mehrdad (1998) proposed a tree base mobile agent model for access control. The proposed scheme is based upon the studies of public key and a hierarchical mobile agent model with addition of Elliptic Curve Cryptosystem (ECC). ECC enhances the operational ability of mobile agent model, because of shorter key length and higher efficiency on encryption and decryption. In addition, after a period of time, due to error or change in the user’s rights, said user will be forced to log out of the system. At the same time, to prevent a user from continuing to use the old key, the system must keep modifying the key so as to change the original access rights of the key, this action could cause unnecessary error and risks, in addition to the large amount of computations that the system needs to perform. Hence, this paper proposes date-constraint key management scheme, where a date is attached to the key, so as to give a validity period to the key. Thus, key management can be more efficient.

Classification and Review of Security Schemes in Mobile Computing

In this paper, we present the classification and review of security schemes in mobile computing system. We classify these schemes based on types the infrastructure used in the mobile computing system-Mobile Ad Hoc Networks (MANET) and Mobile Agent model. Mobile Ad Hoc Networks are pervasive, ubiquitous and without any centralized authority. These unique characteristics, combined with ever-increasing security threats, demand solutions in securing ad hoc networks prior to their deployment in commercial and military applications. This paper reviews the prevailing mobile ad hoc network security threats, the existing solution schemes, their limitations and open research issues. We also explain the Intrusion detection and response technique as an alternate method to protect the MANET based mobile computing systems and their approaches. A literature review of important existing Intrusion Detection approaches and Intrusion Response Approaches for MANET is also presented. This paper also presents the limitations of existing Intrusion Detection and Response Approaches for MANET and open research issues in providing MANET security. With respect to Mobile Agent based mobile computing system, we have presented the classification of various types of security attacks in Mobile Agent based model and presented the security solutions for those type of attacks proposed by the various schemes and the open research issues in providing security for Mobile Agent based mobile computing system. Such classification enhances the understanding of the proposed security schemes in the mobile computing system, assists in the development and enhancement of schemes in the future and helps in choosing an appropriate scheme while implementing a mobile computing system.

Free-roaming mobile agent (FRoMA) protection against multiple attacks

Network traffic is the major concern in distributed computing. To reduce this, mobile agent technology is used in the distributed environment. Even though mobile agent is used in the distributed environment, the traffic is not reduced more due to more number of dispatches or migration from the source host to the remote hosts. To reduce the traffic more than the simple mobile agent, the free roaming mobile agent model is introduced in the network. Despite from its advantage, free roaming mobile agent faces various security issues like colluded attacks, truncation attacks and more. We proposed the id verification model to protect the free roaming mobile agent against the colluded and truncation attacks. This paper also proposes the recovery model for free-roaming mobile agent and its collected offers by the K-response model. It is to improve the fault tolerance of the agent failure or agent occupied by the malicious host by identifying whether the agent is dispatched to next host or not.

Epidemic spreading in communities with mobile agents

We propose a model of mobile agents to study the epidemic spreading in communities with different densities of agents, which aims to simulate the realistic situation of multiple cities. The model addresses the epidemic process from a community with threshold λ c 1 less than the infection rate λ to a community with threshold λ c 2 larger than λ through both direct and indirect contacts. By both theoretic analysis and numerical simulations we show that it is possible to sustain the epidemic spreading in the community with λ c 2 through contact with another community, provided that the latter is connected with an infected community. This result suggests that for effectively controlling the epidemic spread, we should also pay attention to the risk caused by the infection through indirect contact.