> Important Dates
Special session proposal deadline: August 30, 2013
Special session notification: September 13, 2013
Paper submission extended deadline: October 13, 2013
Paper acceptance notification (Postponed): November 15, 2013
Camera-ready submission extended deadline: December 20, 2013
Early-bird registration extended deadline: December 20, 2013
Conference dates: March 19-21, 2014






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About The International Conference On Communications

The International Conference On Communications will provide parallel sessions with contributed papers on the related topics as follows: Communication Theory, Antennas and Propagation, Optical Communications, Microwaves, Wireless Communications, Signal Processing for Communication, Channel Coding, Multimedia Communications, Remote Sensing and Applications, etc.


Technical Conference Chairs
Asst. Prof. Dr. Surachet Kanprachar
Naresuan University, Thailand

Surachet Kanprachar received the B.Eng. degree (first-lass honors) in Electrical Engineering in 1996 from Chulalongkorn University, Bangkok, Thailand. He received both the M.Sc. and Ph.D. degrees in Electrical Engineering from the Virginia Polytechnic Institute and State University (Virginia Tech), Blackburg, USA in 1999 and 2003, respectively. Currently, he is an assistant professor at the Department of Electrical and Computer Engineering, the Faculty of Engineering, Naresuan University, Phitsanulok, Thailand. His research interests are in the area of optical fiber communications.


Invited Speakers
Assoc. Prof. Dr. Chuwong Phongcharoenpanich
King Mongkut’s Institute of Technology Ladkrabang (KMITL), Thailand

Title : Tag Antenna using Printed Dipole with H-Slot for UHF RFID Applications

Abstract :
     This paper proposes the tag antenna designed for operation along the frequency band of 920-928 MHz corresponding to UHF RFID in Thailand and FCC standards. The tag antenna was fabricated from the thin FR4 substrate with the dielectric constant of 4.3 and the thickness of 1.6 mm. The pattern of the tag antenna is omnidirectional beam. The tag antenna design uses H-slot matching technique for impedance matching between the antenna and IC chip with the impedance of 16.09-j150.77 Ω at the frequency of 910 MHz that is the center frequency of FCC standard. The structure of the tag antenna is durable and suitable for applying with pallet applications.

Chuwong Phongcharoenpanich received the B.Eng. (Hons), M.Eng., and D.Eng. degrees from the Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand, in 1996, 1998, and 2001, respectively. He is currently an Associate Professor at the Department of Telecommunications Engineering, KMITL where he also serves as the Leader of the Wireless Communication Laboratory at the same institute. He was the board committee of ECTI Association in 2008-2011. He serves as the chair of IEEE MTT/AP/ED Thailand chapter. He is the associate editor of IEICE Trans.Com. and ECTI Trans. EEC. He has been the organizing committee of several international conferences including the TPC chair of 2009 International Symposium on Antennas and Propagation (ISAP2009) and TPC member of ISAP2012. He is the reviewer of many journals including IEEE Trans. Antennas and Propagation and, Electronics Letters, ECTI Trans. and many international conferences including ISAP and Asia-Pacific Microwave Conference (APMC). His research interests are antenna design for various mobile and wireless communications, conformal antennas and array antenna theory. Dr. Phongcharoenpanich is a Member IEEE, IEICE and ECTI.




Assoc. Prof. Dr. Thawatchai Mayteevarunyoo
Mahanakorn University of Technology (MUT), Thailand

Title : Localized modes in a nonlinear medium with a PT-symmetric dipole

Abstract :
     We introduce the simplest one-dimensional model of a nonlinear system with the parity-time (PT) symmetry, which makes it possible to find numerical solutions for localized modes (“solitons"). The PT -symmetric element is represented by a point-like (delta-functional) gain-loss dipole ∼ δ'(x), combined with the usual attractive potential ∼ δ(x). The nonlinearity is represented by self-focusing (SF) Kerr terms, both spatially uniform and localized ones. The system can be implemented in planar optical waveguides. For the sake of comparison, also introduced is the model with separated δ-functional gain and loss, embedded into the linear medium and combined with the δ-localized Kerr nonlinearity and attractive potential. Full analytical solutions for pinned modes are found in both models. The numerical solutions are obtained in the gain-loss-dipole model with the δ'- and δ- functions replaced by their Lorentzian regularization. With the increase of the dipole’s strength, γ, the single-peak shape of the numerically found mode, supported by the uniform SF nonlinearity, transforms into a double-peak one. This transition coincides with the onset of the escape instability of the pinned soliton.


Assoc. Prof. Dr. Rangsan Wongsan
Suranaree University of Technology , Thailand

Title : Gain Improvement of MSAs Array By Using Curved Woodpile EBG and U-Shaped Reflector

Rangsan Wongsan is a member of the School of Telecommunication, The Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand since 1994. He received his B.Eng.degree in Electronics Engineering at Rajamangala Institute of Technology, Thewes campus, M.Eng. degree in Electrical Engineering at King Mongkut's Institute of Technology, North Bangkok (KMITNB), and D.Eng. degrees in Electrical Engineering at King Mongkut's Institute of Technology Ladkrabang (KMITL). His almost researches are in the antenna theory and electromagnetic applications. Currently, his research interests are the utilization of the Electromagnetic Band Gap (EBG) for the efficiency improvement of conventional antennas and microwave devices.


Assoc. Prof. Dr. Lunchakorn Wuttisittikulkij
Chulalongkorn University, Thailand

Title : PEG-Like Algorithm for LDPC Codes

Abstract :
     Progressive Edge-Growth (PEG) algorithm is one of the promising methods to construct a parity-check matrix (or H matrix) with a large girth for low-density parity-check (LDPC) codes.  However, generating a large H matrix based on a PEG algorithm usually requires a lot of computations because of its complexity.  This paper proposes an alternative method based on a topology matrix to construct the H matrix, which has lower complexity than the PEG algorithm.  We refer to the proposed method as a “PEG-like” algorithm. Results indicate that the proposed method can provide the same H matrix as the PEG algorithm does but with lower complexity

Lunchakorn Wuttisittikulkij received the B.Eng. degree in Electrical Engineering from Chulalongkorn University in 1990, the MSc in Telecommunications and Information Systems and PhD in 1992 and 1997 respectively from the university of Essex.
     Dr. Lunchakorn is an associate Professor at the telecommunication system research laboratory, Chulalongkorn university. His main research interests are channel coding techniques and medium access control protocols for wireless networks. Specific current research topics include LPDC codes, multi-wavelength optical networks and design and analysis of collision resolution algorithms.




Asst. Prof. Dr. -Ing. Suramate Chalermwisutkul
King Mongkut’s University of Technology North Bangkok (KMUTNB), Thailand

Title : 2.45 GHz Microwave Heating System with Coaxial Applicator for Local Heating

Suramate Chalermwisutkul received the Diplom-Ingenieur and Ph.D. degrees in Electrical Engineering from RWTH Aachen University, Aachen, Germany, in 2001 and 2007, respectively. During his Ph.D. studies, he worked in a project funded by the German Federal Ministry of Education and Research (BMBF) in the field of large signal device modeling for UMTS base station power amplifier design in collaboration, among others, with Bell Labs Europe Department, Alcatel Lucent, Nuremberg, Germany, where he was engaged from mid 2006 to February 2007 as a full time researcher in a project concerning high efficiency power amplifier design for mobile base stations.
     In 2007, he joined the Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand as a lecturer/researcher in the TGGS Communications Engineering Program. His research interests are high efficiency and linear RF transmitter design for mobile communications, design of passive and active RF and microwave circuits as well as microwave industrial applications. 


Asst. Prof. Dr. Wachira Chongburee
Kasetsart University, Thailand

Title : An Estimation Method for Impulse Response and Channel Capacity of Power Line by Using Backward Impedance Transform Technique

Wachira Chongburee received his Bechelor’s degree in Electrical Engineering from Kasetsart University, Thailand in1991 and Ph.D. from Virginia Tech in 2004.  He has served Kasetsart University as a faculty member for more than 10 years.  He his research interest includes modulation techniques, channel characterization and protocols for both wireless and power line communications.




Asst. Prof. Dr. Chaiyod Pirak
King Mongkut’s University of Technology North Bangkok (KMUTNB), Thailand

Title : Recent Advances in Communication Technologies for Smart Grid Application: A Review

Chaiyod Pirak received the B.Eng. degree in Telecommunication Engineering with the first class honor in 2000 from King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand. In 2005, he received the Ph.D degree in Electrical Engineering from Chulalongkorn University, Thailand in association with University of Maryland College Park, USA. He was appointed as a lecturer in the department of Electrical and Software System Engineering, The Sirindhorn International Thai-German Graduate School of Engineering (TGGS) at King Mongkut’s University of Technology North Bangkok in 2006, and Assistant Professor in 2010. In 2009, he was the founder of Mobile Communications and Embedded Systems Laboratory, where he became the head of this laboratory from 2009 to present. His current research interests are in wireless sensor network and its application; embedded system, FPGA, DSP, and microcontroller; broadband wireless access: WiMax, WCDMA, and CDMA2000; digital signal processing for wireless communications; multiple-input multiple-output (MIMO) communication systems; smart antenna systems for wireless communications; orthogonal frequency division multiplexing (OFDM) communication systems; 3rd and 4th generation mobile communication systems; cooperative communication systems for multimedia communications; channel estimation and space-time coding; cognitive radio; and smart meter and smart grid technologies.




Asst. Prof. Dr. Titipong Lertwiriyaprapa
King Mongkut’s University of Technology North Bangkok (KMUTNB), Thailand

Title 1 : Study on Surface Wave Contribution on Material Coated PEC with Discontinuity

Abstract 1 :
     This paper presents a study on surface wave contribution on a material coated with a discontinuity. The spectral integral is heuristically constructed from Weiner-Hopf (W-H) solution based on impedance surface. The heuristic spectral is also modified so that the spectral can be treated the material coated with some thickness. This leads one to obtain the exact surface wave pole from exact Fresnel reflection coefficient. The surface wave contribution is rigorously extracted from modified heuristic spectral integral by using residue theorem. It is found that this surface wave is excited from diffracted field at the discontinuity This work shows that how can we rigorously obtain the surface wave contribution from the modified heuristic solution. This will enlighten one to be able to understand the surface wave behaviors on any material coated with discontinuity.

Title 2 : Application of novel approximate UTD solution for antenna problems

Abstract 2 :
     This paper presents the application of the novel approximate UTD ray solution for antenna problems. The novel approximate UTD solution has been proposed to simplify the exact Weiner-Hopf (W-H) solution. The novel approximate UTD solution provides a simple closed form and satisfies all of vital boundary conditions. The accuracy of this UTD solution is very promising for for engineering application. It is of interest in this work to show the application of the novel approximate UTD for practical antenna problems such as coupling radiation and scattering problems with the complex platform.

Titipong Lertwiriyaprapa received his B.S. Tech. Ed. (Hons.) in Electrical Engineering from King Mongkut's University of Technology North Bangkok (KMUTNB) in 1996 and his M.Eng in Electrical Engineering from King Mongkut's Institute of Technology Ladkrabang in 2000. He obtained his M.Sc. and Ph.D. in Electrical Engineering from the Ohio State University, Columbus, Ohio, USA in 2006 and 2007, respectively. Currently he serves as an assistant professor at the Department of Teacher Training in Electrical Engineering, KMUTNB. He is currently the board committee of ECTI Association in 2012-2013 and the vice chair of IEEE MTT/AP/ED


Col. Dr. Anurat Ingun
Royal Thai Army, Thailand

Title : DVB-T2 trial and optimized parameters in Thailand

Anurat Ingun, Colonel of Royal Thai Army, received the B.S. degree in electrical engineering from Chulachomklao Royal Military Academy (CRMA), Nakornnayok, Thailand in 1991, M.S. and Ph.D. degrees all in electrical engineering from Florida Institute of Technology, USA, in 1996, and 2003 respectively. He was assigned to be a signal platoon leader at 1st signal battalion under the 1st Royal King Guard Division, Bangkok and then joined the department of electrical engineering, CRMA in 1991 as an instructor. Thereafter he was assigned to be the head of control and guidance system department and head of business development department, Defense Technology Institute, Thailand in 2009, and 2010, respectively, and then returned to CRMA again. Currently, he serves as a chairman of technical broadcasting standard subcommittee, National Broadcasting and Telecommunication Commission (NBTC). Dr. Ingun is a Member of IEEE Broadcasting Society.


Dr. Ravee Phromloungsri
Udon Thani Rajabhat University, Thailand

Title : Improvement of Wilkinson Power Dividers with SITLs Compensated Microstrip Band Stop Filters

Abstract :
     This paper presents a simple technique to improve the performance of Wilkinson power divider by using step-impedance transmission lines (SITLs) compensated microstrip band stop filter. The proposed power divider employs a pair of the SITLs compensated band stop filters to replace the ordinary 70.7 Ohm quarter-wavelength transmission lines. The main objective of the employed band pass filters incorporated in the power divider structure is to suppress the spurious response at 2nd harmonic frequency. Simulated and measured results at 0.9 GHz operating frequency of the ordinary and the proposed Wilkinson power divider are compared. The measured results show that the insertion losses (S21, S31) are less than -3.5 dB while the return losses (S11, S22, S33) are less than -18 dB with more than 100% fractional bandwidth. Moreover, the proposed power divider provides more than 35 dB suppression at the 2nd harmonics frequency.

Ravee Phromloungsri was born in Khon Kaen, Thailand. He received the B.Sc. (Applied Physics in Solid State Electronics) from King Mongkut Institute of Technology, Ladkrabang (KMITL) in 1992, M.Eng. and D.Eng. in Electrical Engineering (Telecommunication) from Mahanakorn University of Technology (MUT) in 2000 and 2006, respectively. Currently, he is a Lecturer at the Department of Electronics Engineering, the Faculty of Technology, Udon Thani Rajabhat University, Udon Thani, Thailand. His research interests are in the area of RF/Microwave circuits design.


Dr. Apichan Kanjanavapastit
Udonthani Rajabhat University, Thailand

Title : Eradication of red flour beetles in jasmine rice using domestic microwave oven

Apichan Kanjanavapastit received Ph.D. degree in Telecommunications from the University of New South Wales, Australia in 2005. He had worked with Mahanakorn University of Technology in the Department of Telecommunications Engineering, Faculty of Engineering, from 1996 to 2012. Currently, he is with Udonthani Rajabhat University in the Department of Electronics Engineering, Faculty of Technology. His research interests include telecommunications, embedded systems, wireless communications, mobile applications programming and computer networks.




Dr. Supakit Kawdungta
Rajamangala University of Technology Lanna, Chiang Mai, Thailand

Title : Analysis of the Far-field Radiation of a Hertzian Dipole Embedded in Electromagnetic Bandgap (EBG) Structures of Periodic Lossy Multilayers Using Equivalent BCITL Models

Abstract :
     In this paper, the far-field radiation of an electric Hertzian dipole embedded in electromagnetic bandgap (EBG) structures of periodic lossy multilayers is studied analytically and numerically. To simplify the analysis of this radiation problem, the equivalent transmission line (TL) model based on bi-characteristic-impedance TLs (BCITLs) is employed to efficiently compute the far-field radiation of the Hertzian dipole, where associated reflection coefficients, which are useful in computing far fields, can be determined effectively. Numerical results based on equivalent BCITL models are in good agreement with results obtained from a commercial electromagnetic software.

Biography
- Current Status/Position : Lecturer in Faculty of Engineering
at Rajamangala University of Technology Lanna, Chiang Mai
- Education : Graduated Doctor of Engineering from King Mongkut's Institute of Technology Ladkrabang in Electrical Engineering
- Research Interests : Electromagnetic, Microwave, and Antenna Engineering


Special Sessions
  Surachet Kanprachar


   Settha Tangkawanit

Asst. Prof. Dr. Surachet Kanprachar and Mr. Settha Tangkawanit
Naresuan University, Thailand

Title : Smart Technology in Campus Electric Vehicle System

Abstract :
     Electric vehicle is one possible alternative in reducing the pollution in transportation. It is normally used in many university campuses to carry students around campus. To make use of the campus electric vehicle more efficiently, many possible technologies can be applied. Smart devices and embedded systems are promising technology in improving the performance of the campus electric vehicle since these can be functioned in a small package with high performance.
     In this session, it is intended to present the smart technology applying to the campus electric vehicle system using smart devices and embedded systems. Topics are wireless data communications, wireless sensor network, computer vision, face detection, artificial intelligence, expert system, authentication, security analysis, and related technology.

SurachetKanprachar received the B.Eng. degree (First-class honors) in Electrical Engineering in 1996 from Chulalongkorn University, Bangkok, Thailand. He received both the M.Sc. and Ph.D. degrees in Electrical Engineering from the Virginia Polytechnic Institute and State University (Virginia Tech), Blacksburg, USA in 1999 and 2003, respectively. Currently, he is an assistant professor at the Department of Electrical and Computer Engineering, the Faculty of Engineering, Naresuan University, Phitsanulok, Thailand. His research interests are in the area of optical fiber communications.

Settha Tangkawanit received the B.Eng. degree (Second-class honors) in Computer Engineering and M.Eng. degree in Electrical Engineering from Naresuan University, in 2005 and 2008, respectively. Currently, he works at the Department of Electrical and Computer Engineering, Faculty of Engineering, Naresuan University, Phitsanulok, Thailand. His research interests are in the area of embedded system, computer vision and wireless sensor network.




 

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