Fibonacci P-Code Method for Generalized Stack Filtering. - Jaakko Astola; Pauli Kuosmanen; David Akopian; David Z. Gevorkian (ISCAS, 1995)

Processors for generalized stack filters. - David Akopian; Olli Vainio; Sos S. Agaian; Jaakko Astola (IEEE Trans. Signal Process., 1995)

Processor architecture for extended lapped transform. - David Akopian; Jaakko Astola (EUSIPCO, 1996)

Pipeline processor for fast architecture oriented regular DCT-IDCT algorithm. - David Akopian; Jaakko Astola (ICASSP, 1996)

Fault detection in stack filter circuits based on sample selection probabilities. - Imed Ben Dhaou; David Akopian; Pauli Kuosmanen; Jaakko Astola (ICIP (1), 1996)

Systematic approaches to parallel architectures for DSP algorithms. - David Akopian (Signal Process., 1997)

New digit-serial implementations of stack filters. - Jaakko Astola; David Akopian; Olli Vainio; Sos S. Agaian (Signal Process., 1997)

An optimized multiscanning approach for still image compression. - David Akopian; Mika Helsingius; Jaakko Astola (MMSP, 1999)

Architecture-oriented regular algorithms for discrete sine and cosine transforms. - Jaakko Astola; David Akopian (IEEE Trans. Signal Process., 1999)

Lossless compression of natural images using regressive analysis. - Konstantin Balashov; David Akopian; Jaakko Astola (EUSIPCO, 2000)

Pipelined architecture for inverse discrete cosine transform. - Jari Nikara; Jarmo Takala; David Akopian; Jukka Saarinen; Jaakko Astola (EUSIPCO, 2000)

Pipeline architecture for 8×8 discrete cosine transform. - Jarmo Takala; Jari Nikara; David Akopian; Jaakko Astola; Jukka Saarinen (ICASSP, 2000)

Scalable interconnection networks for partial column array processor architectures. - Jarmo Takala; David Akopian; Jaakko T. Astola; Jukka P. Saarinen (ISCAS, 2000)

Constant geometry algorithm for discrete cosine transform. - Jarmo Takala; David Akopian; Jaakko Astola; Jukka Saarinen (IEEE Trans. Signal Process., 2000)

Multi-port interconnection networks for radix-R algorithms. - Jarmo Takala; Tuomas Järvinen; Perttu Salmela; David Akopian (ICASSP, 2001)

Register-based multi-port perfect shuffle networks. - Tuomas Järvinen; Jarmo Takala; David Akopian; Jukka Saarinen (ISCAS (4), 2001)

Pipeline architecture for DCT/IDCT. - Jari Nikara; Jarmo Takala; David Akopian; Jukka Saarinen (ISCAS (4), 2001)

Multistage interconnection networks for parallel Viterbi decoders. - David Akopian; Jarmo Takala; Jukka Saarinen; Jaakko Astola (IEEE Trans. Commun., 2003)

An optimal nonlinear extension of linear filters based on distributed arithmetic. - David Akopian; Jaakko Astola (IEEE Trans. Image Process., 2005)

Optimization of Time-Varying Two-Band Filterbanks for Wavelet Transforms. - David Akopian; Paul Ybarra; C. L. Philip Chen (SoSE, 2007)

Spreading Sequence Design for MC-CDMA Systems. - Catalin Lacatus; David Akopian; Mehdi Shadaram (SoSE, 2007)

Enhancing Security in Wireless Networks Using Positioning Techniques. - Phani K. Sagiraju; Praveen Gali; David Akopian; G. V. S. Raju 001 (SoSE, 2007)

A Software GPS+Receiver Toolkit. - Phani K. Sagiraju; Aleksandr Panchul; G. V. S. Raju 001; David Akopian (SoSE, 2007)

A family of scalable FFT architectures and an implementation of 1024-point radix-2 FFT for real-time communications. - Adnan Suleiman; Hani H. Saleh; Adel Hussein; David Akopian (ICCD, 2008)

On Optimal Bit Allocation for Classification-Based Source-Dependent Transform Coding. - David Akopian (J. Electr. Comput. Eng., 2008)

A Fast Time-Recursive Correlator for DSSS Communications. - David Akopian; Sos S. Agaian (IEEE Signal Process. Lett., 2008)

A Wavelet-Denoising Approach Using Polynomial Threshold Operators. - Christopher B. Smith; Sos S. Agaian; David Akopian (IEEE Signal Process. Lett., 2008)

Reduced Complexity Algorithm for Spreading Sequence Design. - Catalin Lacatus; David Akopian; Mehdi Shadaram (IEEE Trans. Circuits Syst. II Express Briefs, 2008)

A Land Mobile Channel Modeling in LabVIEW. - Grant Huang; Arpine Soghoyan; David Akopian; C. L. Philip Chen; Abhay Samant (SMC, 2009)

A Remote Over-Internet Hands-on Laboratory. - Arsen Melkonyan; David Akopian; C. L. Philip Chen (SMC, 2009)

A Sensor Placement Measure for Impact Detection in Structural Health Monitoring. - Arsen Melkonyan; David Akopian; C. L. Philip Chen (SMC, 2009)

Scalable FFT Architecture vs. Multiple Pipeline FFT Architectures Hardware Implementation and Cost. - Adnan Suleiman; Adel Hussein; Khaldoun Bataineh; David Akopian (SMC, 2009)

Flexible Spectrum and Power Allocation for OFDM Unlicensed Wireless Systems. - Catalin Lacatus; David Akopian; Prasad Yaddanapudi; Mehdi Shadaram (IEEE Syst. J., 2009)

A Fast Positioning Method Without Navigation Data Decoding for Assisted GPS Receivers. - David Akopian; Jari Syrjärinne (IEEE Trans. Veh. Technol., 2009)

Design Method for Scalable DCT Algorithm Suitable for Reconfigurable Systems. - Nabil Kerkiz; Adel Hussein; Amr Elchouemi; Adnan Suleiman; David Akopian (ESA, 2010)

Wi-Fi assistance to SUPL-based Assisted-GPS simulators for indoor positioning. - Mohanapriya Chittoor Sundaramurthy; Sandesh N. Chayapathy; Abhinav Kumar; David Akopian (CCNC, 2011)

Mobile text messaging solutions for obesity prevention. - David Akopian; Varun Jayaram; Lakshmipathi Aaleswara; Moosa Esfahanian; Cynthia Mojica; Deborah Parra-Medina; Sahak Kaghyan (Multimedia on Mobile Devices / Multimedia Content Access: Algorithms and Systems, 2011)

Integrity monitoring and thresholding-based WLAN indoor positioning algorithm for mobile devices. - Arsen Melkonyan; Sireesha Yalamanchili; David Akopian; Philip C. L. Chen (SoSE, 2011)

Temporal-spatial fuzzy logic algorithm for effective dynamic load balancing in distributed 3D graphics engine. - Aleksandr Panchul; David Akopian; Mo M. Jamshidi (Int. J. Syst. Syst. Eng., 2011)

Template-based education toolkit for mobile platforms. - Santosh Chandana Golagani; Moosa Esfahanian; David Akopian (Multimedia on Mobile Devices / Multimedia Content Access: Algorithms and Systems, 2012)

SUPL support for mobile devices. - Jayanthi Narisetty; Arpine Soghoyan; Mohanapriya Chittoor Sundaramurthy; David Akopian (Multimedia on Mobile Devices / Multimedia Content Access: Algorithms and Systems, 2012)

Reduced complexity crosscorrelation interference mitigation in GPS-enabled collaborative ad-hoc wireless networks - Theory. - Catalin Lacatus; David Akopian; Mehdi Shadaram (Comput. Electr. Eng., 2012)

Guest Editors' Introduction to the Special Issue on The design and analysis of wireless systems: New inspirations. - Mehdi Shadaram; David Akopian; Glaucio H. S. Carvalho (Comput. Electr. Eng., 2012)

MessageSpace: a messaging system for health research. - Rodrigo Escobar; David Akopian; Deborah Parra-Medina; Laura Esparza (Multimedia Content and Mobile Devices, 2013)

Human movement activity classification approaches that use wearable sensors and mobile devices. - Sahak Kaghyan; Hakob Sarukhanyan; David Akopian (Multimedia Content and Mobile Devices, 2013)

A LabVIEW-based fast prototyping software defined GPS receiver platform. - David Akopian; Arpine Soghoyan (GlobalSIP, 2013)

A novel BER-feedback power control algorithm for Personal Area Network Devices. - Andre M. Mayers; Patrick Benavidez; G. V. S. Raju 001; David Akopian; Mo M. Jamshidi (SysCon, 2013)

An adaptive stochastic-based M-ary Modulation extension algorithm for short range wireless CRs. - Andre M. Mayers; B. Kone; G. V. S. Raju 001; David Akopian (WTS, 2013)

A Template-Based Short Course Concept on Android Application Development. - David Akopian; Arsen Melkonyan; Santosh C. Golgani; Timothy T. Yuen; Can Saygin (J. Inf. Technol. Educ. Innov. Pract., 2013)

Fast Time-Recursive Block Correlators for Pseudorandom Sequences. - David Akopian; Phanikrishna Sagiraju; Brent Nowak (IEEE Trans. Circuits Syst. I Regul. Pap., 2013)

A remote laboratory for USRP-based software defined radio. - Rudresh Gandhinagar Ekanthappa; Rodrigo Escobar; Achot Matevossian; David Akopian (MOBMU, 2014)

Human activity recognition by smartphones regardless of device orientation. - Jafet Morales; David Akopian; Sos S. Agaian (MOBMU, 2014)

Dealing with faulty measurements in WLAN indoor positioning. - Jafet Morales; David Akopian; Sos S. Agaian (MOBMU, 2014)

Indoor positioning system using WLAN multipath signals as fingerprints for mobile devices. - Anirban Saha; David Akopian (MOBMU, 2014)

Thermal-image quality measurements. - Sos S. Agaian; Mehdi Roopaei; David Akopian (ICASSP, 2014)

Thermal conditions of breast cancer progress-treatment. - Mehdi Roopaei; Sos S. Agaian; Mehdi Shadaram; David Akopian; Hélio Rios (SMC, 2014)

Closed Loop Power Control Using Third Order Quadratic Approximator. - Andre M. Mayers; Patrick Benavidez; G. V. S. Raju 001; David Akopian; Mo M. Jamshidi (Int. J. Wirel. Inf. Networks, 2014)

An Assessment of Remote Laboratory Experiments in Radio Communication. - Andreas Gampe; Arsen Melkonyan; Murillo Pontual; David Akopian (IEEE Trans. Educ., 2014)

Facilitating Remote Laboratory Deployments Using a Relay Gateway Server Architecture. - Arsen Melkonyan; Andreas Gampe; Murillo Pontual; Grant Huang; David Akopian (IEEE Trans. Ind. Electron., 2014)

Measurement and Modeling of Network Delays for MS-Based A-GPS Assistance Delivery. - Grant Huang; David Akopian; C. L. Philip Chen (IEEE Trans. Instrum. Meas., 2014)

Measurement and Characterization of Channel Delays for Broadband Power Line Communications. - Grant Huang; David Akopian; C. L. Philip Chen (IEEE Trans. Instrum. Meas., 2014)

A Development and Testing Instrumentation for GPS Software Defined Radio With Fast FPGA Prototyping Support. - Arpine Soghoyan; Adnan Suleiman; David Akopian (IEEE Trans. Instrum. Meas., 2014)

A privacy protection for an mHealth messaging system. - Lakshmipathi Aaleswara; David Akopian; Anthony T. Chronopoulos (MOBMU, 2015)

A sensor data format incorporating battery charge information for smartphone-based mHealth applications. - Rodrigo Escobar; David Akopian; Rajendra V. Boppana (MOBMU, 2015)

Platform-dependent optimization considerations for mHealth applications. - Sahak Kaghyan; David Akopian; Hakob G. Sarukhanyan (MOBMU, 2015)

Indoor positioning system using WLAN channel estimates as fingerprints for mobile devices. - Erick Schmidt; David Akopian (MOBMU, 2015)

Cognitive interference avoidance in 4th generation GPS. - Brian Kelley; Gonzalo De La Torre Parra; David Akopian (SoSE, 2015)

A Closed-Loop Transmission Power Control System Using a Nonlinear Approximation of Power-Time Curve. - Andre M. Mayers; Patrick J. Benavidez; G. V. S. Raju 001; David Akopian; Mo M. Jamshidi (IEEE Syst. J., 2015)

Network delay modeling for assisted GPS. - Grant Huang; David Akopian; C. L. Philip Chen (IEEE Trans. Aerosp. Electron. Syst., 2015)

Range-based trilateration using multipurpose cost function optimization with Lagrangian multipliers. - Ali Khalajmehrabadi; David Akopian; Daniel J. Pack (PLANS, 2016)

Indoor WLAN localization using group sparsity optimization technique. - Ali Khalajmehrabadi; Nikolaos Gatsis; David Akopian (PLANS, 2016)

Introduction to WLAN-Based Indoor Positioning of Mobile Devices. - David Akopian; Ali Khalajmehrabadi; Nikolaos Gatsis (MOBMU, 2017)

A study of IoT MQTT control packet behavior and its effect on communication delays. - Brian Bendele; David Akopian (MOBMU, 2017)

Two-Tier State-Machine Programming for Messaging Applications. - Jafet Morales; Rodrigo Escobar; Sahak Kaghyan; Girish Vaidyanathan Natarajan; David Akopian; Patricia Chalela; Amelie G. Ramirez; Alfred Mcalister (MOBMU, 2017)

Modern WLAN Fingerprinting Indoor Positioning Methods and Deployment Challenges. - Ali Khalajmehrabadi; Nikolaos Gatsis; David Akopian (IEEE Commun. Surv. Tutorials, 2017)

A Joint Indoor WLAN Localization and Outlier Detection Scheme Using LASSO and Elastic-Net Optimization Techniques. - Ali Khalajmehrabadi; Nikolaos Gatsis; Daniel J. Pack; David Akopian (IEEE Trans. Mob. Comput., 2017)

Structured Group Sparsity: A Novel Indoor WLAN Localization, Outlier Detection, and Radio Map Interpolation Scheme. - Ali Khalajmehrabadi; Nikolaos Gatsis; David Akopian (IEEE Trans. Veh. Technol., 2017)

Designing Apps Interoperable and Functional on Multiple Mobile Platforms using Google Environment. - Devasena Inupakutika; Chetan Basutkar; Sahak Kaghyan; David Akopian; Patricia Chalela; Amelie G. Ramirez; Alfred Mcalister (MOBMU, 2018)

An Integration of Health Tracking Sensor Applications and eLearning Environments for Cloud-Based Health Promotion Campaigns. - Devasena Inupakutika; Girish Vaidyanathan Natarajan; Sahak Kaghyan; David Akopian; Martin Evans; Zenong Yin; Deborah Parra-Medina (MOBMU, 2018)

Review of Interactive Communication Systems for Business-to-Business (B2B) Services. - Sahak Kaghyan; Shubham Sarpal; Andrei Zorilescu; David Akopian (MOBMU, 2018)

Evaluation of the detection and mitigation of time synchronization attacks on the global positioning system. - Ali Khalajmehrabadi; Nikolaos Gatsis; David Akopian (PLANS, 2018)

A reduced complexity cross-correlation interference mitigation technique on a real-time software-defined radio GPS L1 receiver. - Erick Schmidt; Zach A. Ruble; David Akopian; Daniel J. Pack (PLANS, 2018)

Real-Time Rejection and Mitigation of Time Synchronization Attacks on the Global Positioning System. - Ali Khalajmehrabadi; Nikolaos Gatsis; David Akopian; Ahmad F. Taha (IEEE Trans. Ind. Electron., 2018)

Development of a Real-Time Software-Defined GPS Receiver in a LabVIEW-Based Instrumentation Environment. - Erick Schmidt; David Akopian; Daniel J. Pack (IEEE Trans. Instrum. Meas., 2018)

A Performance Study of a Fast-Rate WLAN Fingerprint Measurement Collection Method. - Erick Schmidt; Misbahuddin A. Mohammed; David Akopian (IEEE Trans. Instrum. Meas., 2018)

SDR-Fi: Deep-Learning-Based Indoor Positioning via Software-Defined Radio. - Erick Schmidt; Devasena Inupakutika; Rahul Mundlamuri; David Akopian (IEEE Access, 2019)

Development of a Real-Time Software-Defined Radio GPS Receiver Exploiting a LabVIEW-based Instrumentation Environment. - Erick Schmidt; David Akopian; Daniel J. Pack (CoRR, 2019)

Exploiting Acceleration Features of LabVIEW platform for Real-Time GNSS Software Receiver Optimization. - Erick Schmidt; David Akopian (CoRR, 2019)

Fast prototyping of an SDR WLAN 802.11b receiver for an indoor positioning system. - Erick Schmidt; David Akopian (CoRR, 2019)

A Fast-rate WLAN Measurement Tool for Improved Miss-rate in Indoor Navigation. - Erick Schmidt; David Akopian (CoRR, 2019)

A Low-Cost Approach of Magnetic Field-Based Location Validation for Global Navigation Satellite Systems. - Grant Huang; Brian K. Taylor; David Akopian (IEEE Trans. Instrum. Meas., 2019)

Software-Defined Radio GNSS Instrumentation for Spoofing Mitigation: A Review and a Case Study. - Erick Schmidt; Zachary Ruble; David Akopian; Daniel J. Pack (IEEE Trans. Instrum. Meas., 2019)

Performance analysis of Mobile Cloud Computing Architectures for mHealth app. - Devasena Inupakutika; David Akopian; Patricia Chalela; Amelie G. Ramirez (MOBMU, 2020)

Performance Assessment of mHealth Apps. - Gerson Rodriguez; Devasena Inupakutika; Sahak Kaghyan; David Akopian; Palden Lama; Patricia Chalela; Amelie G. Ramirez (PerCom Workshops, 2020)

High-Resolution Correlator Based Detection of GPS Spoofing Attacks Using the LASSO. - Erick Schmidt; Nikolaos Gatsis; David Akopian (PLANS, 2020)

Tuning-Free, Low Memory Robust Estimator to Mitigate GPS Spoofing Attacks. - Junhwan Lee; Ahmad F. Taha; Nikolaos Gatsis; David Akopian (IEEE Control. Syst. Lett., 2020)

Facilitating the development of cross-platform mHealth applications for chronic supportive care and a case study. - Devasena Inupakutika; Sahak Kaghyan; David Akopian; Patricia Chalela; Amelie G. Ramirez (J. Biomed. Informatics, 2020)

Toward UAV Control via Cellular Networks: Delay Profiles, Delay Modeling, and a Case Study Within the 5-mile Range. - Jafet Morales; Gerson Rodriguez; Grant Huang; David Akopian (IEEE Trans. Aerosp. Electron. Syst., 2020)

A GPS Spoofing Detection and Classification Correlator-Based Technique Using the LASSO. - Erick Schmidt; Nikolaos Gatsis; David Akopian (IEEE Trans. Aerosp. Electron. Syst., 2020)

Integration of NLP and Speech-to-text Applications with Chatbots. - Devasena Inupakutika; Mohammad Nadim; Ganesh Reddy Gunnam; Sahak Kaghyan; David Akopian; Patricia Chalela; Amelie G. Ramirez (MOBMU, 2021)

Characteristic Features of the Kernel-level Rootkit for Learning-based Detection Model Training. - Mohammad Nadim; Wonjun Lee; David Akopian (MOBMU, 2021)

Firmware Vulnerability Analysis of Widely Used Low-Budget TP-Link Routers. - Franziska Schwarz; Klaus Schwarz; Daniel Fuchs; Reiner Creutzburg; David Akopian (MOBMU, 2021)

Chatbot integrated with machine learning deployed in the cloud and performance evaluation. - Ganesh Reddy Gunnam; Devasena Inupakutika; Rahul Mundlamuri; Sahak Kaghyan; David Akopian (MOBMU, 2022)

A robust indoor localization approach exploiting multipath. - Rahul Mundlamuri; Devasena Inupakutika; Krishna Sandeep Ayyagari; Ganesh Reddy Gunnam; David Akopian (MOBMU, 2022)

Chatbot integration with Google Dialogflow environment for conversational intervention. - Rahul Mundlamuri; Devasena Inupakutika; Ganesh Reddy Gunnam; Sahak Kaghyan; David Akopian (MOBMU, 2022)

Community research partnership: A case study of San Antonio Research Partnership Portal. - Mohammad Nadim; David Akopian; Adolfo Matamoros (MOBMU, 2022)

Quantifying Performance Gains of GPUDirect Storage. - Devasena Inupakutika; Bridget Davis; Qirui Yang; Daniel Kim; David Akopian (NAS, 2022)

On the Performance of Cloud-Based mHealth Applications: A Methodology on Measuring Service Response Time and a Case Study. - Devasena Inupakutika; Gerson Rodriguez; David Akopian; Palden Lama; Patricia Chalela; Amelie G. Ramirez (IEEE Access, 2022)

Data-driven approach for robust flood prediction. - Ganesh Reddy Gunnam; Devasena Inupakutika; Rahul Mundlamuri; Sahak Kaghyan; David Akopian (MOBMU, 2023)

An RF modulation recognition method using machine learning. - Rahul Mundlamuri; Devasena Inupakutika; Ganesh Reddy Gunnam; Thinh Ngo; David Akopian (MOBMU, 2023)

San Antonio Research Partnership Portal: Evaluating keyword extraction tools to automate matchmaking for community research partnership. - Mohammad Nadim; David Akopian; Adolfo Matamoros (MOBMU, 2023)

Detection and Mitigation of Spoofing Attacks Against Time Synchronization and Positioning. - Junhwan Lee; Erick Schmidt; Nikolaos Gatsis; David Akopian (IEEE Access, 2023)

A Comparative Assessment of Unsupervised Keyword Extraction Tools. - Mohammad Nadim; David Akopian; Adolfo Matamoros (IEEE Access, 2023)

Kernel-level Rootkit Detection, Prevention and Behavior Profiling: A Taxonomy and Survey. - Mohammad Nadim; Wonjun Lee; David Akopian (CoRR, 2023)

Assessing Performance of Cloud-Based Heterogeneous Chatbot Systems and A Case Study. - Ganesh Reddy Gunnam; Devasena Inupakutika; Rahul Mundlamuri; Sahak Kaghyan; David Akopian (IEEE Access, 2024)