Papers by Aristotel Tentov
International Journal of Information Technology and Computer Science, 2013
In this paper we present a logical circuits design for approximate content matching implemented a... more In this paper we present a logical circuits design for approximate content matching implemented as finite state machines (FSM). As network speed increases the software based network intrusion detection and prevention systems (NIDPS) are lagging behind requirements in throughput of so called deep package inspection -the most exhaustive process of finding a pattern in package payloads. Therefore, there is a demand for hardware implementation. Approximate content matching is a special case of content finding and variations detection used by "evasion" techniques. In this research we will enhance the k-differentiate problem with "ability" to detect a generalized Levensthein edit distance i.e. transposition of two neighboring characters. The proposed designs are based on automata theory using the concept of state reduction and complexity minimization. The main objective is to present the feasibility of the hardware design and the trade-off between the simple next state and output functions of NFA and reduced number of required memory elements (flip-flops) of DFA.
A Secure Key Distribution and Management Scheme for Neighborhood Area Network in Smart Grid
A New Security Architecture for Privacy-Preserving Aggregation and Access Control in Smart Grids
International Journal of Data Network Security, Aug 4, 2013
Robots have a huge impact on the process of automation of the industrial processes. The goal of t... more Robots have a huge impact on the process of automation of the industrial processes. The goal of this paper is to demonstrate a concept of a 4-DOF robotic arm which can be manufactured at low cost, is aware of its surroundings and is open for further improvements. A kinematic model for the robotic arm is presented. Using the Denavit-Hartenberg representation, the complete procedures for both forward and inverse kinematics are described. Quaternion algebra has been suggested as an improved model, emphasizing its advantages over the demonstrated disadvantages of the Denavit-Hartenberg model.
FPGA Synthesis of Opensparc Processor's Cores, Network Implementations and Performance
Network Processing Performance Evaluation with ICMP
Performance analysis of synchronous multibuffered packet-switching networks
Microprocessing and Microprogramming, 1993
ABSTRACT In this paper, a general mathematical method for analysis of synchronous multibuffered p... more ABSTRACT In this paper, a general mathematical method for analysis of synchronous multibuffered packet-switching interconnection networks in multiprocessor systems is presented. The proposed mathematical method is general in that he analyzed synchronous interconnection networks under uniform and nonuniform traffic. The existing methods for analysis of buffered interconnection networks have assumed either single or infinite buffers at each output (or input) port of a switch, as well as uniform traffic pattern of the networks. Recently, H. Yoon et al. [1] have presented an analytical model of buffered delta networks, assuming finite buffers at each input port and uniform traffic. Firstly, in the paper, a general model of synchronous buffered switching element, using output buffering, under assumption of finite buffer size for a very general class of traffic, is presented. Traffic can be uniform or nonuniform. It is assumed that the subsequent stages of the network are nearly independent and a model is extended for entire network under this assumption. Analytical results obtained with proposed model are then compared with each other, and it is shown that the proposed mathematical method is more general then the known models of interconnection networks.
An Efficient 64-Point IFFT Hardware Module Design
Lecture Notes in Electrical Engineering, 2014
Power consumption analyzes with mathematical models into the overall electrical network
International Journal of Electrical Power & Energy Systems, 2013
ABSTRACT This paper performs analyzes using mathematical model of Fractional Brownian Distributio... more ABSTRACT This paper performs analyzes using mathematical model of Fractional Brownian Distribution, M/G/∞ Model Described by Pareto Distribution, ‘Heavy Tail’ Distribution, and Gamma Distribution with Intergroup Characteristic.For performed analyses into this research are used measurements for power consumption into overall electrical network in Macedonia in time period of 16 years.The results enclosed with mathematical analytical model are compared with results from real measurements.The calculated discrepancies confirms that enclosed analytical model with Intergroup Characteristic is optimal estimation model for modeling of the power consumption of electrical network.The real-time analyses for consumption of electrical energy into the overall network or for the part of electrical network are very important for everyday real operations into the electrical networks in order to achieve the services into the electrical network with best performance and the smaller cost as it is possible.In this research are prepared and predictions for power consumption quantities into the network, so the evaluated model is used as the best practice model for direct planning of the power consumption values into the electrical network (indirectly can be planned costs and operations into the electrical network related with the values of power consumption).
Platform Impact on Web Service Performance when Introducing Security
Analysis and Implementation of Frequency Domain Equalizer for Single Carrier System in the 60 GHz Band
Lecture Notes in Electrical Engineering, 2014
A Novel Flow based Approach in Routing Decision Mechanism
ACIT - Information and Communication Technology, 2010
... the packet through the specified ifc Continue reading destination address field Search FDT fo... more ... the packet through the specified ifc Continue reading destination address field Search FDT for the specified Flow ID Compare source address ... source address in packet Check router's ifc field in FDT [flow ID found] [Flow ID not found] [comparison ok] [comparision failed] Check ...
2012 20th Telecommunications Forum (TELFOR), 2012
As information society changes, the digital world is making more use of larger bulks of data and ... more As information society changes, the digital world is making more use of larger bulks of data and complex operations that need to be executed. This trend has caused overcoming the processor speed limit issues, by introducing multiple processor systems. In spite of hardwarelevel parallelism, the software has evolved with various techniques for achieving parallel programs execution. Executing a program in parallel can be efficiently done only if the program code follows certain rules. There are many techniques, which tend to provide variant processing speeds. The aim of this paper is to test the Matlab, OpenMPI and Pthreads methods on a single-processor, multi-processor, GRID and cluster systems and suggest optimal method for that particular system.
Performances of LEON3 IP Core in WiGig Environment on Receiving Side
Lecture Notes in Electrical Engineering, 2014
ABSTRACT WiGig is incorporating in the group of wireless standards which tend to release users fr... more ABSTRACT WiGig is incorporating in the group of wireless standards which tend to release users from being tethered to their devices. It employs 60GHz frequencies to achieve transfer rate up to 7Gbps, 10 times faster than current fastest Wi-Fi network based on IEEE 802.11n. This new standard, labeled as 802.11ad is an exclusive technology for instant data transfer. Higher frequencies allow higher data rates, which leads to inter symbol interference problem. This obstacle in WiGig is exceeded by employing OFDM modulation technique elaborated in this paper, with attention focused on receiver - what are the limitations, appropriate transfer synchronization and utilization of FFT required for signal demodulation. LEON3 processing core is a synthesized VHDL model of 32-bit processor compliant with SPARC V8 architecture. The purpose of this paper is to determine the efficiency of this type of IP core in WiGig environment, by testing LEON3s’ performances on algorithms for FFT implementation, since modulation is the essential factor in OFDM deployment. An effort was made to discover an optimal algorithm (with features obedient to the 802.11ad requirements) which escalates LEON3 IP Core performances for receiving side.
Modeling Intel 8085A in VHDL
Advances in Intelligent Systems and Computing, 2014
Performance Impact Correlation of Message Size vs. Concurrent Users Implementing Web Service Security on Linux Platform
Advances in Intelligent and Soft Computing, 2012
Towards Multi-gigabit OFDM Throughput on FPGA: Limitations and Challenges
Lecture Notes in Electrical Engineering, 2014
Proceedings in the Congress “The 3rd Virtual International Conference on Advanced Research in Scientific Areas” (ARSA-2014) Slovakia, December 1 - 5, 2014., Dec 1, 2014
Research was carried out on a geoglyph located in Kanda (Macedonia) by an international team usin... more Research was carried out on a geoglyph located in Kanda (Macedonia) by an international team using interdisciplinary methods (astronomy, philosophy, mythology, mathematics and physics). The research conducted on two occasions in 2014 was undertaken to establish all potential anomalies in the IS, US and EM spectrum with special attention to anomalies common to sacred sites, but as yet unexplained by standard physics.
We conclude the Geoglyph looks to be built on an artificial hill. This hill or mound also appears to be artificial from the aeroplane. The Geoglyph is visible only from the sky and is located in an oval ditch.
Some measurements suggest that there is chamber located below the surface. Research by different methods (infra-/ultrasound research, AMT measurements, binary algorithm synthesis from audio waves, data sonification and dowsing) also found that at the sacred enclosure primary water is located at the centre or at some point along its major axis. Furthermore, since the soil does not match the surrounding area, it would certainly appear that this mound has been carefully constructed with a specific purpose in mind. What exactly that purpose is remains to be investigated in future.
Performance analysis of ATM switches with multistage multipath packet switching interconnection networks
… , 1997. Proceedings., 22nd Annual Conference on, Jan 1, 1997
Abstract A mathematical method for analysis of ATM switches based on multistage packet switching ... more Abstract A mathematical method for analysis of ATM switches based on multistage packet switching interconnection networks with finite buffering capacity at the output of switching elements is presented. The proposed mathematical method is general in that it analyzed ...
Performance analysis of ATM switches with multistage packet switching interconnection networks
Local Computer Networks, 1996., …, Jan 1, 1996
Abstract A mathematical method for analysis of ATM switches based on multistage packet switching ... more Abstract A mathematical method for analysis of ATM switches based on multistage packet switching interconnection networks with finite buffering capacity at the output of switching elements is presented. The proposed mathematical method is general in that it analyzed ...
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Papers by Aristotel Tentov
We conclude the Geoglyph looks to be built on an artificial hill. This hill or mound also appears to be artificial from the aeroplane. The Geoglyph is visible only from the sky and is located in an oval ditch.
Some measurements suggest that there is chamber located below the surface. Research by different methods (infra-/ultrasound research, AMT measurements, binary algorithm synthesis from audio waves, data sonification and dowsing) also found that at the sacred enclosure primary water is located at the centre or at some point along its major axis. Furthermore, since the soil does not match the surrounding area, it would certainly appear that this mound has been carefully constructed with a specific purpose in mind. What exactly that purpose is remains to be investigated in future.
We conclude the Geoglyph looks to be built on an artificial hill. This hill or mound also appears to be artificial from the aeroplane. The Geoglyph is visible only from the sky and is located in an oval ditch.
Some measurements suggest that there is chamber located below the surface. Research by different methods (infra-/ultrasound research, AMT measurements, binary algorithm synthesis from audio waves, data sonification and dowsing) also found that at the sacred enclosure primary water is located at the centre or at some point along its major axis. Furthermore, since the soil does not match the surrounding area, it would certainly appear that this mound has been carefully constructed with a specific purpose in mind. What exactly that purpose is remains to be investigated in future.