PAST RESEARCH TOPICS

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2 OUTLINES Past Research Topics My research topics My students research topics Present Research Topics Present students research topics Research Methods Mathematical models, Simulation SW/Programming, Experimental methods Research Topics Digital Communications: Performance of Digital Receiver in Fading Channels Mobile/Cellular Networks: 3G, WiMAX, LTE, and 4G Networks Wireless Networks: WiFi, IP Wireless, Near Field Communication, etc. Performance of Networks: Horizontal/Vertical Handover, Throughputs, Delay, Handover Rate, Call Completion Probability, etc.

3 PAST RESEARCH TOPICS My Research Aalo and S. Pattaramalai, "Average error rate for coherent MPSK signals in Nakagami fading channels", IEE Electronics Letter., Vol. 32, No. 17, PP , August 15, 1996 Pattaramalai, S.; Aalo, V.A.; Efthymoglou, G.P, Call Completion Probability with Weibull Distributed Call Holding Time and Cell Dwell Time, IEEE Global Telecommunications Conference (GLOBECOM '07), Nov Page(s): Pattaramalai, S., Aalo, V.A., Distribution of random cell dwell times in wireless networks, Electronics Letters, Volume 44, Issue 4, February , Page(s): S. Pattaramalai,V.A. Aalo, and G.P. Efthymoglou, Evaluation of Call Performance in Cellular Networks With Generalized Cell Dwell Time and Call Holding Time Distributions in the Presence of Channel Fading, IEEE Trans. Vehicular Technology, Volume 58, no. 6, July 2009, Page(s): G.P.Efthymoglou, S. Pattaramalai, and V.A. Aalo, Call Completion Probability with Generalized Call Holding Time and Cell Dwell Time Distributions, VTC springs 2009.

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8 PAST RESEARCH TOPICS My Students Research topics Suwat Pattaramalai, Pramote Pimsen, and Kosin Chamnongthai, "A Thai Note Picture Recognition Method by Using Two Frequency Bands of Signal and Neural Network", IASTED International Conference on Modelling, Simulation and Optimization, Singapore, August 11-14, 1997 Chirawat Kotchasarn and Suwat Pattaramalai, Bit Error Rate of Coherent DS-CDMA System in Nakagami Fading Channel with Arbitrary Parameters using Error Correcting Code, IEEE APCCAS 98, Chiangmai, Thailand, November 24-27, 1998 Adisorn Leelasantitham, Suwat Pattaramalai, Kosin Chamnongthai and Bundit Thipakorn, Inspection of Water Mark on Currency Note by Using Correlation Mapping and Neural Network, IEEE APCCAS 98, Chiangmai, Thailand, November 24-27, 1998 Tassaphan Suwannatat, Pimporn Suntorntarawong, Brad Trewin, Suwat Pattaramalai and Kosin Chamnongthai, A Method of Field-Mobile-Robot Localization by Using a Reference Mark, EECON-21, King Mongkut s University of Technology Thonburi, PP , 1998 Chirawat Kotchasarn and Suwat Pattaramalai, Bit Error Rate of Coherent DS-CDMA System in generalized Nakagami Fading Channel with Arbitrary Parameters using Error Correcting Code, NCSEC 98, Kasetsart University, Bangkok, Thailand, October 20-21, 1998 Adisorn Leelasantitham, Suwat Pattaramalai, Kosin Chamnongthai and Bundit Thipakorn, Inspection of Water Mark on Currency Note by Using Correlation Mapping and Neural Network, NCSEC 98, Kasetsart University, Bangkok, Thailand, October 20-21, 1998 Pikul Wachirathanit, Suwat Pattaramalai, and Kosin Chamnongthai, A Multicast Output-Shared Buffer ATM Switch with RQM Management, ISPACS 99, Phuket, Thailand, December 8-10,1999 Wannee Pattamapinan, Roongtip Yongyingsakthaworn, and Suwat Pattaramalai, Performance Evaluation of Output-Buffer and Shared-Buffer Multicast ATM Switch with Queue Management Schemes, ISPACS 99, Phuket, Thailand, December 8-10,1999

9 PAST RESEARCH TOPICS My Students Research topics Ittiphon Krinpayorm and Suwat Pattaramalai, Link Recovery Comparison Between OSPF & EIGRP, 2012 International Conference on Information and Computer Networks (ICICN 2012), IPCSIT vol. 27, IACSIT Press, Singapore, pp Panisara Treesorn and Suwat Pattaramalai, Intranet Performance Monitoring and Problem Solving Analysis with Network Parameters from SNMP and NetFlow, IJCSEE vol. 1, Issue 3, Ekkaphot Meesa-ard and Suwat Pattaramalai, Performance Analysis of Soft-Decision on Viterbi Decode for Cooperative Relay in LTE-Advanced, IJCSEE vol. 1, Issue 3, Woraphon Lertchuwongsa and Suwat Pattaramalai, Performance Comparison of WCDMA Pico Repeater at Two Difference Positions in One-Bedroom Condominium, IJCSEE vol. 1, Issue 3, Tanawan Poka-anon and Suwat Pattaramalai, "Throughput Efficiency by Employing a Relay Node at Different Distances in WiMAX Cell,"International Conference on Advances in Computing, Communications and Informatics (ICACCI'13), Sept , 2013, Bangkok, Thailand, Page(s): Ekkaphot Meesa-ard and Suwat Pattaramalai, "The Impact of Mobile velocity on Performance of LTE-Advanced Cooperative Downlink,"IET International Conference on Frontiers of Communications, Networks and Applications (IET ICFCNA 2014), Nov. 3-5, 2014, Kuala Lumpur, Malaysia.

10 PAST RESEARCH TOPICS My Students Research topics Silumpa Suboonsan and Suwat Pattaramalai, "Performance Evaluation of Vertical Handover on Bangkok Mass Transit,"IET International Conference on Frontiers of Communications, Networks and Applications (IET ICFCNA 2014), Nov. 3-5, 2014, Kuala Lumpur, Malaysia. Witthawat Pradit and Suwat Pattaramalai, "Energy Impact of Emerging Mobile Internet Application on UMTS and LTE Networks," Workshop on Internet Architecture and Applications 2014 (IA2014), Nov. 5-6, 2014, Chiang Mai, Thailand. Werapon Poophun and Suwat Pattaramalai, "Impact of Router Buffer Size on TCP/UDP with g Performance,"Workshop on Internet Architecture and Applications 2014 (IA2014), Nov. 5-6, 2014, Chiang Mai, Thailand. Tachapat Taesawat and Suwat Pattaramalai, "Comparison of Dual Stack and Tunneling in Internet Protocol Version 6 Transition,"Internation Conference on Embedded System and Intelligent Technology (ICESIT 2015), June 10-12, 2015, Phitsanulok, Thailand. Natsuda Hengpradit and Suwat Pattaramalai, "Link Failure Analysis on EIGRP and OSPF Protocol with IPv4 and IPv6 on Mixed Topology Networks,"Proceedings of ISER 28th International Conference,April 7, 2016, Penang, Malaysia. Nannaphat Manlam and Suwat Pattaramalai, "Handover based on Mobile Velocity and HOM Adjusting by Fuzzy Logic Control in Macrocell/Femtocell LTE Network,"Proceedings of ISER 28th International Conference, April 7, 2016, Penang, Malaysia. Ratchaneporn Panthai and Suwat Pattaramalai, "Offic Wireless Network Performance Improvement by Changing Wireless Routers Installment Pattern and Radio Channel Setting,"Proceedings of ISER 28th International Conference, April 7, 2016, Penang, Malaysia.

11 PAST RESEARCH TOPICS My Students Research topics Saowapa Intarapanich and Suwat Pattaramalai, "Increasing TCP performances on wired and wireless networks by using TCP freeze,"ieee International Computer Science and Engineering Conference (ICSEC2016), December 14-17, 2016, Chiangmai, Thailand. Khemmapath Phejrsuksai and Suwat Pattaramalai, "Performance Comparison of Multipath TCP Data Transferring in Bottleneck and Disjoint-Path wired networks connected with Wi- Fi,"5th International Electrical Engineering Congress (IEECon2017), March 8-10, 2017, Pattaya, Thailand. Prued Suksawat and Suwat Pattaramalai, "Performance Measurement of Voice Call Services in UMTS/LTE Mobile Network,"5th International Electrical Engineering Congress (IEECon2017), March 8-10, 2017, Pattaya, Thailand. Soraya Pantunn and Suwat Pattaramalai, "Security of Connecting SIP Trunk via SBC on IMS Network,"5th International Electrical Engineering Congress (IEECon2017), March 8-10, 2017, Pattaya, Thailand. Ditthawat Songratthaset and Suwat Pattaramalai, "Adaptive polynomials method for FBMC nonlinear power amplifier complex gain," th International Conference on Advanced Communication Technology (ICACT), Feb , 2017, Bongpyeong, South Korea. Churdchai K-marchai and Suwat Pattaramalai, "Performance evaluation of AOA, TDOA and hybrid methods for geolocation on interference in urban areas,"the 8th International Conference on Information and Communication Technology for Embedded Systems (IC- ICTES), May 7-9, 2017, Bangsaen Heritage Hotel, Chonburi, Thailand.

12 PAST RESEARCH TOPICS My Students Research topics Ekkaphot Meesa-ard and Suwat Pattaramalai, "Analyzing the Impact of Mobility over α-μ Generalized Fading Channels in Wireless Communication," rd International Conference on Computer and Communication Systems (ICCCS), April 2018, Nagoya, Japan. Ekkaphot Meesa-ard and Suwat Pattaramalai, "Evaluating the Impact of Mobility over K-μ Generalized Fading Channels in Digital Communication," th International Conference on Electronics Information and Emergency Communication (ICEIEC), June 2018, Beijing, China. Ekkaphot Meesa-ard and Suwat Pattaramalai, "Outage Probability of Mobility Incorporated alpha-mu Fading Distribution with Co-channel Interference in Heterogeneous Networks," 2018 IEEE International Conference on Smart Internet of Things (SmartIoT), Aug. 2018, Xi'an, China. Ditthawat Songratthaset and Suwat Pattaramalai, "Nonlinear Power Amplifier Characteristic Based on Orthogonal Polynomials Method for FBMC Systems," The 11th IFIP Wireless and Mobile Networking Conference, September 3-5, 2018, Prague, Czech Republic.

13 PAST RESEARCH TOPICS My Students Research topics โกส นทร จ ำนงไทย, ส ว ฒน ภ ทรมาล ย,"ระบบอ ำนแบบโดยอ ตโนม ต ",การประช มว ชาการทางว ศวกรรมไฟฟ า คร งท 15, สถำบ น เทคโนโลย พระจอมเกล ำธนบ ร, หน ำ 6-31 ถ ง 6-35, 2535 น ม ตร ศร คำทำ, ส ว ฒน ภ ทรมาล ย และ โกส นทร จ ำนงไทย, ว ธ กำรตรวจว ดสล กเกล ยวโดยหำจ ดขอบภำพท เหมำะสม และ กรอบมำตรำฐำน, การประช มว ชาการ เร องว ศวกรรมอ ตสาหการในป ค.ศ. 2000, โรงแรมแอมบำสเดอร ซ ต จอมเท ยน พ ทยำ ชลบ ร, หน ำ , 2539 ทรงพล ส คนธพงศ, ส ว ฒน ภ ทรมาล ย, บ ณฑ ต ท พำกร และ โกส นทร จ ำนงไทย, ว ธ กำรจ บค เซลล เม ดเล อดแดงส ำหร บกำร ว ดควำมเร วเฉล ย, การประช มว ชาการทางไฟฟ า คร งท 20, จ ฬำลงกรณ มหำว ทยำล ย, หน ำ , 2540 ทรงพล ส คนธพงศ, ส ว ฒน ภ ทรมาล ย, บ ณฑ ต ท พำกร และ โกส นทร จ ำนงไทย, ว ธ กำรจ บค เซลล เม ดเล อดแดงส ำหร บกำร ว ดควำมเร วเฉล ย, การประช มใหญ ทางว ชาการทางว ศวกรรม, ว ศวกรรมสถำนแห งประเทศไทย, หน ำ , 2540 จ รว ฒน คชสำร, โกส นทร จ ำนงไทย และ ส ว ฒน ภ ทรมาล ย, อ ตรำบ ทผ ดพลำดของระบบกำรเข ำถ งช องส ญญำณหลำยทำง แบบแยกควำมแตกต ำงทำงรห ส แบบไดเร คซ เควนซ ในช องส ญญำณท ม กำรจำงหำยแบบนำกำกำม ท ม พำรำม เตอร ไม เจำะจง ด วยรห สแก ไขควำมผ ดพลำด, การประช มว ชาการทางว ศวกรรมไฟฟ า คร งท 21, มหำว ทยำล ยเทคโนโลย พระจอมเกล ำธนบ ร หน ำ 664 ถ ง 667, 2541 พ ส ฎฐ หงส ส วรรว ธนะ, วรว ทย ช พพ ท กษ สก ล และ ส ว ฒน ภ ทรมาล ย, กำรจ ำลองกำรท ำงำนร วมก นของ เฟรมร เลย และ เอท เอ ม, NCSEC 98, Kasetsart University, Bangkok, Thailand, October 20-21, 1998

14 PAST RESEARCH TOPICS My Students Research topics จร ยำ ชมพ หลง และ ส ว ฒน ภ ทรมำล ย, กำรประหย ดพล งงำนกำรใช อ นเตอร เน ตบนโทรศ พท เคล อนท ด วยอ ปกรณ พ อกเกตไวไฟ (Energy Saving of Using Internet on Mobile Phone with Pocket Wi-Fi), กำรประช มว ชำกำรระด บชำต คร งท 12, มหำว ทยำล ยเกษตรศำสตร ว ทยำเขตก ำแพงแสน, หน ำ , 8-9 ธ นวำคม 2558 กนกวรรณ ป ดทองคำ และ ส ว ฒน ภ ทรมำล ย, ผลกระทบกำรใช พล งงำนของโทรศ พท สมำร ทโฟนในกำรด ว ด โอ (Energy Impact of video watching on Smartphone), กำรประช มว ชำกำรระด บชำต คร งท 12, มหำว ทยำล ยเกษตรศำสตร ว ทยำเขตก ำแพงแสน, หน ำ , 8-9 ธ นวำคม 2558 อ จจ มำ อำพ นส ข และ ส ว ฒน ภ ทรมำล ย, กำรเปร ยบเท ยบประส ทธ ภำพระหว ำงเทคน คอ นเตอร ล ฟไมโมเดส และเทคน คโคโลเคทไมโมเด สท ม ค ำระด บก ำล งส งและค ำควำมแยกส วนท ส ญเส ยไประหว ำงพอร ตแตกต ำงก นในระบบกำรส งส ญญำณแบ งแถบควำมถ และสเปคตร ม ต งฉำก (Performance comparison between Interleaved-MIMO DAS and Co-located-MIMO DAS with variant Orthogonal frequency division multiplexing transmission power and isolated loss), The 38th National Graduate Research Conference "Graduated Research towards Globalization", Naresuan University,Phitsanulok, Thailand, หน ำ , ก มภำพ นธ 2559 ธ ร ธว ช เวชร นทร และ ส ว ฒน ภ ทรมำล ย, ศ กษำกำรใช พล งงำนของสมำร ทโฟนในโครงข ำยไร สำยหลำยเทคโนโลย (Energy Consumption Studying of Smartphone Usage in Heterogeneous Networks), กำรประช ม ว ชำกำรทำงว ศวกรรมไฟฟ ำ คร งท 39 (The 39th Electrical Engineering), EECON-39, โรงแรมเดอะร เจ นท ชะอำ บ ชร สอร ท, เพชรบ ร, 2-4 พศจ กำยน 2559 ภ ณณ พงศ ต ณณธรำงค ก ล และ ส ว ฒน ภ ทรมำล ย, กำรว ดค ำอ ตรำด ดกล นพล งงำนจ ำเพำะของโทรศ พท ม อถ อในระบบส จ ขณะใช งำน แนบใกล ศร ษะมน ษย, กำรประช มว ชำกำรระด บชำต มหำว ทยำล ยเทคโนโลย รำชมงคล คร งท 9 และกำรประช มว ชำกำรระด บนำนำชำต มหำว ทยำล ยเทคโนโลย รำชมงคล คร งท 8, ศ นย แสดงส นค ำและกำรประช มอ มแพ ค เม องทองธำน, นนทบ ร, 7-9 ส งหำคม 2560

15 PAST RESEARCH TOPICS My Students Research topics ธ ระ จงสมช ย และ ส ว ฒน ภ ทรมำล ย, กำรศ กษำระยะปลอดภ ยจำกสนำมแม เหล กไฟฟ ำของสถำน ฐำนโทรศ พท เคล อนท (STUDY OF SAFETY DISTANCE FROM ELECTROMAGNETIC FIELD OF CELLULAR BASE STATION), กำร ประช มว ชำกำรทำงว ศวกรรมไฟฟ ำ คร งท 40 (THE 39TH ELECTRICAL ENGINEERING), EECON-40, โรงแรม เดอะซำยน, ชลบ ร, พศจ กำยน 2560 ส ม ตรำ สระก จ และ ส ว ฒน ภ ทรมำล ย, กำรว เครำะห ระยะเวลำในกำรเช อมต อกำรโทรด วยเส ยงของระบบ 3G และ VOLTE ภำยใต สถำนกำรณ ท แตกต ำงก น (Voice call setup time analysis on 3G and VOLTE under different situations), The 21st International Computer Science and Engineering Conference 2017 (ICSEC2017), Bangkok, Thailand, November 2017 สำธ ก ต รโกศ ณท และ ส ว ฒน ภ ทรมำล ย, กำรเปร ยบเท ยบประส ทธ ภำพส ญญำณไวไฟในห องท ม ผน งแบบกระจกและแบบย ปซ มระหว ำง มำตรฐำน IEEE802.11n และ IEEE802.11ac, The 2017 Technology Innovation Management and Engineering Science International Conference (TIMES-iCON2017), Bangkok, Thailand, November 2017 พลว ฒน ส ร ยะ และ ส ว ฒน ภ ทรมำล ย, สำยอำกำศไมโครสตร ปร องต ดร ปต วอ และต วแอล และสำยอำกำศไมโครสตร ปร องต ดต วแอลกล บ ด ำนและต วอ กล บด ำน สำหร บระบบส อสำรไร สำย, กำรประช มว ชำกำรระด บชำต มหำว ทยำล ยรำชภ ฎกล มศร อย ธยำ คร งท 9 เร อง ว จ ย และนว ตกรรมเพ อส งคม, มหำว ทยำล ยร ชภ ฎวไลยอลงกรณ ในพระบรมรำช ปถ มภ ปท มธำน, ต ลำคม 2561

16 RESEARCH TOPICS Present Students Research Topics Effect of Mobility on Performances of Cooperative Relay Network Performance Analysis of Nonlinearly Amplified OFDM and FBMC Systems Energy Consumption Studying of Smartphone Usage in Heterogeneous Networks The Security of Connecting SIP Trunk Via SBC on IMS Network Preventing and Positioning Interference of Spectrum Monitoring System NS2 Simulation: Multipath TCP with Different Topologies in Heterogeneous Network Increasing TCP performances on wired and wireless networks by using TCP Freeze * NS2 or Network Simulator 2 is an open source network simulation software.

17 RESEARCH METHODS o Mathematical models o Introduction o System Model o Transmitter model: modulation, overall transmitter impulse response o Channel model: AWGN, Multipath Fading, Shadowing o Receiver model: demodulation, detection rules o Mathematical expression of signal o Mathematical derivation o Numerical result o Simulation result o Conclusion

18 RESEARCH METHODS o o Simulation SW/Programming o Introduction o Network Model and Parameter Setup o Methodology o Simulation result o Result Discussion o Conclusion and Future work Experimental methods o Introduction o Network Model and Parameter Setup o Methodology o Experiment result o Result Discussion o Conclusion and Future work

19 RESEARCH TOPICS o Digital Communications: Performance of Digital Receiver in Fading Channels o Analytical Matched Filter Bound for M-QAM Hierarchical Constellations with Diversity Reception in Multipath Rayleigh Fading Channels, IEEE Trans.Comm. Vol. 58, No. 3, pp , March o Matched filter bound (MFB) expressions for the performance of hierarchical quadrature amplitude modulations (M-HQAM) over time-discrete multipath Rayleigh fading environments with diversity is derived. The MFB expressions are given in terms of the individual bit error rate (BER) for the different bit streams.

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21 RESEARCH TOPICS o Mobile/Cellular Networks 3G, WiMAX, LTE, and 4G Networks

22 RESEARCH TOPICS o Mobile Video Delivery with HTTP, IEEE Communications Magazine, pp , April 2011.

23 RESEARCH TOPICS

24 RESEARCH TOPICS o Wireless Networks: WiFi, IP Wireless, Near Field Communication, etc. o OPNET Modeler and Ns-2: Comparing the Accuracy Of Network Simulators for Packet-Level Analysis using a Network Testbed, WSEAS Transactions on Computers, Vol. 2, No. 3, pp , July 2003.

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27 RESEARCH TOPICS o Performance of Networks: Outage Probability, Horizontal/Vertical Handover, Throughputs, Delay, Handover Rate, Call Completion Probability, etc. o Improving the Performance of Wireless Ad Hoc Networks Through MAC Layer Design, IEEE Trans. Wireless Comm., Vol. 10, No. 1, pp , January 2011

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30 5G:

31 5G:

32 5G:

33 Print research Journal paper from IEEE Transactions on Communications IEEE Transactions on Mobile Computing IEEE Transactions on Vehicular Technology IEEE Transactions on Wireless Communications In year Then explain keywords, technology aspects, and research method used in this paper and translate the paper abstract, introduction and conclusion to Thai.

34 THE END: THANK YOU FOR YOUR ATTENTION

35 1. Select One research topics and give brief detail such as keywords, technology topics, etc. (10%) 2. How many ways can we do the research? Which way is the most expensive to conduct? Why? (10%)

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