PUBLICATIONS

Novel Network Coding Applications for Diffusion-Based Molecular Nanonetworks
Year of Publication: 2017
Optimal Cooperator Set Selection in Social Cognitive Radio Networks
Year of Publication: 2017
ISI-Aware Modeling and Achievable Rate Analysis of the Diffusion Channel

Analyzing the achievable rate of molecular communication via diffusion (MCvD) inherits intricacies due to its nature: MCvD channel has memory, and the heavy tail of the signal causes inter-symbol interference (ISI). Therefore, using Shannon’s channel capacity formulation for memoryless channel is not appropriate for the MCvD channel. Instead, a more general achievable rate formulation and system model must be considered to make this analysis accurately. In this letter, we propose an effective ISI-aware MCvD modeling technique in 3-D medium and properly analyze the achievable rate.

Year of Publication: 2016
Optimal Cooperator Set Selection in Social Cognitive Radio Networks

While there is a huge body of research on cooperative spectrum sensing in cognitive radio networks (CRN), incentives for cooperative behavior or the conditions under which cooperation is more likely are not explored. We model cooperation among cognitive radios (CRs) as a function of social ties among CRs. In this social CRN where CRs do not necessarily fulfill every cooperative sensing request, we focus on the cooperator set selection problem, i.e. which CRs to ask for cooperation so that resulting throughput and sensing accuracy are maximized subject to detection and false alarm probability constraints. For single channel scenario, we devise a multi-objective optimization model and obtain the solution using an evolutionary multi-objective algorithm. Our evaluations show that our solution is near-optimal in terms of throughput under legitimate operation, i.e., no malicious users, whereas it outperforms expected-throughput-optimal scheme in case of attackers. Numerical analysis demonstrates the robustness of our proposal with little loss of performance when the network is subject to common sensing attacks. In addition, our analysis underlines one significant drawback of existing works: assuming all CRs to be cooperative leads to a substantial overestimation of throughput capacity. Finally, to tackle the increasing complexity under multi-channel setting, we propose a heuristic for multichannel cooperative sensing for the considered social CRN.

Year of Publication: 2016
Optimized Sensor Network for Transmitter Localization and Radio Environment Mapping
Year of Publication: 2016
A novel pre-equalization method for molecular communication via diffusion in nanonetworks
Year of Publication: 2015
Cooperative Spectrum Sensing in Cognitive Radio Networks
Year of Publication: 2015
Difüzyon ile Moleküler Haberleşme Simülasyonu için {\c{C}}ok Alanlı Model
Year of Publication: 2015
Effect of degradation in molecular communication: Impairment or enhancement?
Year of Publication: 2015
Effect of receptor density and size on signal reception in molecular communication via diffusion with an absorbing receiver
Year of Publication: 2015
Energy efficient MAC protocol for cluster formation in mobile cooperative spectrum sensing
Year of Publication: 2015
Incentive for cooperation in Cognitive Radio Networks with group communities
Year of Publication: 2015
ISI mitigation techniques in molecular communication
Year of Publication: 2015
Location estimation-based radio environment map construction in fading channels
Year of Publication: 2015
Molekul Bozunmasının Difuzyon ile Haberlesme Sistemlerinin Veri Hızına Etkisi
Year of Publication: 2015
Network Coding applications in molecular communication
Year of Publication: 2015
A dynamically reconfigurable architecture for emergency and disaster management in ITS
Year of Publication: 2014
A novel modulation technique in diffusion based molecular communication and its performance analysis
Year of Publication: 2014
Effect of messenger molecule decomposition in communication via diffusion
Year of Publication: 2014
Energy efficiency is a subtle concept: fundamental trade-offs for cognitive radio networks
Year of Publication: 2014
Energy efficient ISI mitigation for communication via diffusion
Year of Publication: 2014
HLA based architecture for molecular communication simulation
Year of Publication: 2014
Novel quantization-based spectrum sensing scheme under imperfect reporting channel and false reports
Year of Publication: 2014
Sensor placement algorithm for radio environment map construction in cognitive radio networks
Year of Publication: 2014
Three-dimensional Channel Characteristics for Molecular Communications with an Absorbing Receiver
Year of Publication: 2014
Transmitter location estimation for radio environment map construction using software defined radio
Year of Publication: 2014
Understanding Communication via Diffusion: Simulation Design and Intricacies
Year of Publication: 2014
WISDoM-SD: Wireless IPTV service distribution over mesh mode via space diversity
Year of Publication: 2014
A tunnel-based approach for signal shaping in molecular communication
Year of Publication: 2013
Channel capacity of calcium signalling based on inter-cellular calcium waves in astrocytes
Year of Publication: 2013
Channel switching cost aware and energy-efficient cooperative sensing scheduling for cognitive radio networks
Year of Publication: 2013
dMCS: distributed molecular communication simulator
Year of Publication: 2013
Energy-efficient multichannel cooperative sensing scheduling with heterogeneous channel conditions for cognitive radio networks
Year of Publication: 2013
Low complexity uplink schedulers for energy-efficient cognitive radio networks
Year of Publication: 2013
Nano Ağlarda Difüzyon ile Haberleşme Üzerine Geliştirilmiş Modeller
Year of Publication: 2013
QoS-Enabled Spectrum-Aware Routing for Disaster Relief and Tactical Operations over Cognitive Radio Ad Hoc Networks
Year of Publication: 2013
Radio environment map as enabler for practical cognitive radio networks
Year of Publication: 2013
Reception enhancement with protrusions in communication via diffusion
Year of Publication: 2013
Analytical modeling and resource planning for cognitive radio systems
Year of Publication: 2012
Calcium signaling: overview and research directions of a molecular communication paradigm
Year of Publication: 2012
Cooperative sensing analysis under imperfect reporting channel
Year of Publication: 2012
Interference effects on modulation techniques in diffusion based nanonetworks
Year of Publication: 2012
Joint channel and user selection for transmission and sensing in cognitive radio networks
Year of Publication: 2012
Zone-based spectrum sensing in cognitive radio
Year of Publication: 2012
Analog molecular communication in nanonetworks
Year of Publication: 2011
Co-channel interference for communication via diffusion system in molecular communication
Year of Publication: 2011
Effects of routing for communication via diffusion system in the multi-node environment
Year of Publication: 2011
Modulation techniques for communication via diffusion in nanonetworks
Year of Publication: 2011
Nanoağlar ve Moleküler Haberleşme Teknikleri
Year of Publication: 2011
Special Issue Mobile WiMAX
Year of Publication: 2011
Analytical modeling and performance evaluation of cognitive radio networks
Year of Publication: 2010
Applications of the cross-layer paradigm for improving the performance of WiMax.
Year of Publication: 2010
Energy model for communication via diffusion in nanonetworks
Year of Publication: 2010
Hybrid Frame Structure for improving network throughput in WiMAX Mesh networks
Year of Publication: 2010
Uniform quantizer for cooperative sensing in cognitive radio networks
Year of Publication: 2010
Utilizing WiMAX mesh mode for efficient IPTV transmission
Year of Publication: 2010
Akıllı Radyo Ağlarında Kapasite Planlama
Year of Publication: 2009
Bio-inspired communications in wireless sensor networks
Year of Publication: 2009
Digital Terrain Model Interpolation for Mobile Devices Using DTED Level 0 Elevation Data
Year of Publication: 2009
Realistic Mobility Modeling for Vehicular Ad Hoc Networks
Year of Publication: 2009
Recent advances in mobile middleware for wireless systems and services
Year of Publication: 2009
Resource planning in cognitive radio networks
Year of Publication: 2009
A Power Efficient Disaster Detection Scheme Using Wireless Sensor and Actuator Networks
Year of Publication: 2008
An End-to-End QoS Architecture for All-IP 4G Mobile Networks
Year of Publication: 2008
An entire architecture for cognitive radio networks
Year of Publication: 2008
Applying Design Patterns to SCA Implementations
Year of Publication: 2008
Cross-layer routing-scheduling in IEEE 802.16 mesh networks
Year of Publication: 2008
Cyclic MAP Information Element in WiMAX Networks
Year of Publication: 2008
Environment-aware location estimation in cellular networks
Year of Publication: 2008
On communication protocols for tactical navigation assistance
Year of Publication: 2008
Software Defined Radio architecture for cognitive radio
Year of Publication: 2008
Sofware Communications Architecture compliant FM waveform implementation
Year of Publication: 2008
A survey on emerging broadband wireless access technologies
Year of Publication: 2007
Link Adaptation Mechanisms in WirelessMAN
Year of Publication: 2007
MAC Layers of WMAN Technologies
Year of Publication: 2007
Medium Access Control in WirelessMAN
Year of Publication: 2007
A survey on emerging broadband wireless access technologies
Year of Publication: 2006
Analytical modeling of CAC in next generation wireless systems
Year of Publication: 2006
Mobility Management and Admission Control in Next Generation Wireless Networks
Year of Publication: 2006
Quality of service in mesh mode IEEE 802.16 networks
Year of Publication: 2006
A new call admission control scheme based on mobile position estimation in DS-CDMA systems
Year of Publication: 2005
A survey of cross-layer performance enhancements for Mobile IP networks
Year of Publication: 2005
Aggressive back off strategy in congestion management algorithm for DBS-RCS
Year of Publication: 2005
Analytical Model for Admission Control in Next Generation Wireless Systems
Year of Publication: 2005
Connection Admission Control in Wireless Systems
Year of Publication: 2005
Exploring the issues in policy-based approaches for QoS support in 3G+ mobile networks
Year of Publication: 2005
New Trends in Computer Networks
Year of Publication: 2005
New Trends in Computer Networks, Advances in Computer Science and Engineering: Reports
Year of Publication: 2005
Resource Management and Connection Admission Control in Wireless Networks
Year of Publication: 2005
How a new realistic mobility model can affect the relative performance of a mobile networking scheme
Year of Publication: 2004
Location management framework for next generation wireless systems
Year of Publication: 2004
Mathematical foundations of resource management in next generation wireless systems
Year of Publication: 2003
Application of a realistic mobility model to call admissions in DS-CDMA cellular systems
Year of Publication: 2001
Resource management in DS-CDMA cellular systems using the reservation area concept
Year of Publication: 2001
A novel call admission scheme based on interference for DS-CDMA systems
Year of Publication: 2000
Economics of Resource Allocation
Year of Publication: 1994

About Tuna Tuğcu

I have received my PhD degree in Computer Engineering from Boğaziçi University in 2001. After working as a post-doc for 18 months in Broadband and Wireless Networking Lab at Georgia Institute of Technology, I was appointed as a visiting professor at Georgia Institute of Technology - Savannah Campus for two years. Currently, I am a professor in the Department of Computer Engineering at Boğaziçi University. I am a faculty member of the Computer Networks Research Lab (NetLab). I also take part in Telecommunications and Informatics Technologies Research Center (TETAM) in Kandilli Campus of Boğaziçi University and the associated TAM project funded by the State Planning Organization of Turkey (DPT).

My research interests include wireless networks, with the emphasis on Cognitive Radio and 5G Networks, as well as Molecular Communications and NanoNetworking. You may follow the "Research" link on the left for my past and present projects.

 

Highlights

You may access directly to our emulators (developed by my students) on several topics in Molecular Communications by following the links below. You may run the emulators with the default parameters or you may modify the parameters as you wish.

 

Also, you may find a simple emulator that explains how instructions are executed in the CPU. This emulator was developed by a high school student, Oktay Çomu from Robert College. It aims to give a broad sense of instruction execution; it does not show exact instruction execution process. It starts with a default set of instructions loaded in the memory cells, but you may modify them by changing the content of the cells in the lower left.

RESEARCH

Current Projects

Research Topic: Wireless Networks

Research Topic: Molecular Communications / NanoNetworking

TEACHING

CmpE150 - Introduction to Computing

This course provides an introduction to computer programming using the C language. It is a required course for all Faculty of Engineering students (except for CMPE students who should register the Java section) as well as CET and MATH students. Students from other departments may take the course subject to availability (via consent of the instructor). There is no web site for this course. All course content will be managed through Teaching.Codes system. You will have access to Teaching.Codes when you register the course.

All course content is accessible via Teaching.Codes system, not BOUN-Moodle. Lecutres, labs, and PS will be taught via Teaching.Codes as well as all exams and quizzes. So, make sure that you install Teaching.Codes plug-in to Eclipse.

CmpE160 - Introduction to Object Oriented Programming

This course introduces basic data structures concepts together with the object oriented programming paradigm. The course is intended solely for CMPE students who have taken CMPE150 in Java.

All course content is accessible via Teaching.Codes system, not BOUN-Moodle. Lectures, labs, and PS will be taught via Teaching.Codes as well as all exams and quizzes. So, make sure that you install Teaching.Codes plug-in to Eclipse.

CmpE567 (formerly CmpE591) - Broadband Wireless Networks

Broadband Wireless Networks course is being video recorded. To access the lecture videos, you may:

  1. Join the CMPE591/567 Broadband Wireless Networks Facebook Group,  or

  2. Follow my channel on YouTube.

Students registered for the course may access the lecture notes via BOUN-Moodle.

 

CMPE59G - NanoNetworking

Though nanotechnology has been a hot topic for nearly a decade, nano-machines are still far from achieving complicated tasks. Therefore, collaborative operation of nano-machines is a must for nanotechnology. Nanonetworking, i.e., communication between nano-machines, is an emerging technology that enables communication at the nanoscale.

This course aims introducing concepts and research topics on communications and networking issues among nano-machines. We will cover nanoscale communication networks ranging from molecular motors for intra-cell communication to diffusion and gap junctions for inter-cell communications. We will also have a brief look at carbon nanotube-based nanonetworks. Our focus will be mostly on bio-hybrid approaches.

Lecture notes and additional material is available to registered students of the course via BOUN-Moodle.

PHOTO GALLERY

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Current Projects

Research Topic: Wireless Networks

Research Topic: Molecular Communications / NanoNetworking

CONTACT

Tuna Tuğcu

Professor, Advisor to the Rector

Snail Mail address:

Boğaziçi University

Department of Computer Engineering

34342 Bebek, Istanbul, TURKEY

 

Office: BM 43 (North Campus)

Phone: +90-212-359-7611 

Fax: +90-212-287-2461

E-mail: tugcu@boun.edu.tr

Web: http://www.cmpe.boun.edu.tr/~tugcu

YouTube: http://www.youtube.com/c/TunaTugcu