Saeid Taghavi Afshord

Work place: Computer Engineering Department, Shabestar Branch, Islamic Azad University, Shabestar, Iran

E-mail: taghavi@iaushab.ac.ir

Website:

Research Interests: Computational Science and Engineering, Computational Engineering, Computer systems and computational processes, Engineering

Biography

Saeid Taghavi Afshord received his BSc degree in applied mathematics and MSc degree in computer engineering from the Islamic Azad University, Tabriz and Qazvin branches in 2003 and 2006, Iran respectively. He joined the Islamic Azad University, Shabestar branch, Iran, as a faculty member in 2008. Currently he is a PhD student in computer engineering at the United Institute of Informatics Problems of the NAS of Belarus, from March 2011. His research areas are Energy Saving in Ad Hoc and Sensor Networks, and Methods for Boolean functions Decomposition.

Author Articles
Improved Decomposition for a System of Completely Specified Boolean Functions

By Saeid Taghavi Afshord Yuri Pottosin

DOI: https://doi.org/10.5815/ijitcs.2014.01.03, Pub. Date: 8 Dec. 2013

Functional decomposition is an important and powerful technique in the logic synthesis. The ternary matrix cover approach is one of the existing methods of this type. This method is also used in decomposition of a system of completely specified Boolean functions. Before constructing the desired superposition, it needs to encode a table. There is a trivial encoding method. But to find a better solution, it is important to use a special approach, because the result of the encoding has a direct influence on the obtained functions. In this paper, an efficient algorithm to encode this table is presented. It uses the approach connected with the assembling Boolean hyper cube method. The proposed algorithm is explained in details with an example. The benefits and impacts of the suggested technique are also discussed.

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A New Distributed and Power-Efficient Topology Control Algorithm for Wireless Ad-Hoc Networks

By Saeid Taghavi Afshord Bager Zarei Bahman Arasteh

DOI: https://doi.org/10.5815/ijcnis.2013.12.03, Pub. Date: 8 Oct. 2013

To guarantee the performance of ad hoc networks, utilizing a hierarchical architecture model is necessary. An instance of this structure is clustering. In this paper a cluster-based topology control algorithm is proposed which builds an energy-efficient and a low interference topology. It uses low-quality information, exchanges a few messages, and does not need for extra hardware equipment as well. It is also suitable for practical use, because in the implementation of this algorithm is not needed to know the location or the direction information of the network nodes. So it is possible to classify this algorithm as a neighbor-based topology control algorithm. In addition, for the transmitting and the maintained power levels of each node, a modification is applied according to the real hardware platforms. It improves the energy consumption in the ideal conditions.

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