Volume 2, Issue 1, January 2012

An Agent Oriented Architecture to Supply Flexibility in ERP Systems [Download Paper]

S. Sayari, H. Haghighi, A. Faraahi and M. M. Javanmard

Abstract—Creating new processes and augmentation of current ones are important targets of ERP systems. These targetsare considered in order to have more effective and efficient processes and flexibility in the modification of enterprise processes. One of important advantages of ERP systems is equipting them with processes which are based on best practices. Such processes are adaptable according to the requirements of enterprise and in this way, flexibility of processes customization is guaranteed, and reverse engineering operations are also possible. On the other hand, inflexibility and lack of required intelligence to support process modification in run time make restrictions and lead to less dynamic flexibility in ERP systems. In this paper, a new agent oriented architecture is proposed which supplies flexibility of ERP systemsbased on some autonomous but cooperative agents. In this architecture, there is a great emphasis on some aspects of agents like learning, intelligence and mobility.


Secure Data aggregation Issues in Wireless Sensor Network: A Survey
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Priyanka K. Shah and Kajal V. Shukla

Abstract—The research advances and applicability of wireless sensor networks (WSNs) have introduced many new promising applications including habitat monitoring, battlefield surveillance and target tracking. The energy consumption is the major issue to be considered for WSNs which is occupied by data communication among nodes in maximum proportion. Many sensor applications collect data from an individual node which is aggregated at a base station. To reduce energy consumption, in-network aggregation can be performed at intermediate nodes enroute to the base station. As wireless sensor networks are usually deployed in remote and hostile environments to transmit sensitive information, sensor nodes are prone to node compromise attacks and security issues such as data confidentiality and integrity are extremely important. Hence, wireless sensor network protocols, e.g., data aggregation protocol, must be designed with security in mind. The paper investigates the relationship between security and data aggregation process. In this paper general security issues in WSNs have been explored and we present an extensive study to provide a comprehensive review of the existing literature on techniques and protocols for in- network aggregation in wireless sensor networks and analyze possible security threats on them.


Design of Optimized Fuzzy logic Controller for Magnetic Levitation Using Genetic Algorithms
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Basil Hamed and Hosam Abu Elreesh

Abstract-This paper presents an optimum approach for designing of fuzzy controller for nonlinear system using Genetic Algorithms (GA). In this
paper, a magnetic levitation system is considered as a case study and the controller is designed to keep a magnetic object suspended in the air counteracting the weight of the object. Genetic Algorithm (GA) is used in this paper as optimization method that optimizes the membership, output gain and inputs gains of the fuzzy controllers.The proposed algorithms are implemented using Matlab and Simulink


A Survey on Energy Efficient Routing Techniques for Wireless Sensor Networks [Download Paper]

Kajal V Shukla and Priyanka K Shah

Abstract—Wireless sensor networks (WSNs) consist of unattended sensors with limited storage, energy (battery power) computation and communication capabilities. In wireless sensor networks, routing is bit more complex than other wired or wireless networks. Reliable routing of packets in WSNs from the sensor node to its base station is the most important task for the networks. The sensed data must be gathered and transmitted to a base station where it is further processed for end-user queries in Wireless Sensor Networks. Unlike other wireless networks routing in WSN should be the energy efficient one. This paper gives an overview of the different routing strategies used in Wireless Sensor Networks.


Frame Synchronization to down load the Remote Sensing Satellite Data [Download Paper]

A. A.N.Satyanarayana and B. Y.Venkatarami Reddy

Abstract— The Remote Sensing Satellites transmit the data in PCM formatted mode while embedding a synchronization code word at regu-lar intervals as a time marker for the receiver synchronization. The currently available Correlator ICs have a bandwidth limitation. The paper discusses novel design technique adopted by the authors to design the high-speed digital correlator that caters to the requirements of the remote sensing satellites, which are in the road map for the next decade. The multiplexing design approach helped in achieving the higher bandwidth of operation. The VLSI design methodology adopted, resulted in reducing the design cycle time, the design optimization tech-niques ushered in realizing the entire logic in a single 36 macro cell CPLD. The system has been validated for operational use.