Papers published in International Journals

1.      Dr L.Nirmala  Devi, Poornima “ An Enhanced iterative hard thresholding cascaded

Channel estimation for IRS assisted MIMO Systems” SSRG International Journal of

Electronics       Communication      Engineering,    ISSN   2348-8549/https:doiorg/1014445/23488549/ijece

2.      A. S. Chaithanya, L. N. Devi, and P. Srividya, “Instance segmentation for PCB defect detection with Detectron2,” International Journal of Electrical and Computer Engineering (IJECE), vol. 15, no. 4, pp. 4172–4180, Aug. 2025. [Online]. Available: https://doi.org/10.11591/ijece.v15i4.pp4172-4180

3.      Dr L.Nirmala Devi , Purnima Sriramula “A Pseudo-Inverse-Based Hard

Thresholding and PSO-Aided Channel Estimation for mmWave MIMO Systems” January 2025 IEEE Communications Letters PP(99):1-1

DOI: 10.1109/LCOMM.2025.3572984.

4.      Dr L.Nirmala Devi ,Sainath Chaithanya “ Precise PCB defect detection via instance segmentation using YOLOv7 and YOLOv8” May 2025 Journal of Electronic Imaging 34(3):033018-1-21 DOI: 10.1117/1.JEI.34.3.033018

5.      Dr L. Nirmala Devi, B.Sreenivasu,  “Optimized Facial Expression Recognition via a Hybrid Ensemble Classifier and Improved Feature Extraction Techniques.” International Journal of Intelligent Engineering Informatics (2025) DOI: 10.1504/IJIEI.2026.10068320 (In press) (Scopus & Web of Science : ESCI) Publisher: Inderscience Publishers

6.      Dr L.Nirmala Devi,B.Srinivasu “Enhanced Micro-Expression Recognition Through Graph Convolutional Networks and Metric Learning”. J. Shanghai Jiaotong Univ. (Sci.) (2025). https://doi.org/10.1007/s12204-025-2821-9   Publisher: Spinger Nature & Shanghai Jiaotong University

7.      Dr L.Nirmala Devi, B.Srinivasu,“Fusion Framework for Micro-Expression Recognition Using Hierarchical Transformer Network with DEAC." International

                       Journal   of   Intelligent   Engineering  &   Systems 18.3   (2025).   DOI:

10.22266/ijies2025.0430.04 

8.      Dr L.Nirmala Devi ,Divya bibireddy “Enhancing DM Junctionless Tree-FET Performance Through Spacer Optimization: A Comprehensive DC and RF Analysis” January 2025 Journal of Electronic Materials

9.      Dr L.Nirmala Devi ,Y Roji, “An Automated Sparse Channel Estimation Framework for MU‐MIMO‐OFDM System With Adaptive Extreme Learning and Heuristic Mechanism” November 2024 Transactions on Emerging Telecommunications Technologies 35(11) DOI: 10.1002/ett.70015

10.  Dr L.Nirmala Devi,Divya Bibi Reddy “Impact of Interface Trap Charges on the Electrical and Analog/RF Performance of Dual Material Junction less Tree FETs” Volume 14 Number 03 September 2024 Scope Jounal

11.  Dr L.Nirmala Devi , Thoudoju Sreeramulu, “ A Statistical Signal Processing and Machine Learning Approach of Dithered Pseudo Random Noise for Evaluating the Performance of Ring Laser Gyro (RLG)”, International Journal of Electrical and Electronics Engineering 11(8):177-187, DOI: 10.14445/23488379/IJEEE-V11I8P116

12.  Dr L.Nirmala Devi,Y.Roji, “Implementing intelligent‐based sparse channel estimation in Multi User‐Multiple Input Multiple Output‐Orthogonal Frequency Division Multiplexing system with hybridized optimization algorithm” International Journal of Communication system, May 2024, https://doi.org/10.1002/dac.5817

13.  Dr.L.Nirmala Devi, Divya Bibi Reddy” Optimizing Device Dimensions for Dual Material Junction less Tree-FET: A Path to Improved Analog/RF Performance” ECS Journal of Solid State Science and Technology, 2024 13 073003

14.  Dr,L.Nirmala Devi ,Spandan Bandari “ A multi-Objective Approach for Optimal Target Coverage UAV Placement: Hybrid Heuristic Formulation” Journal of Controls and decisions ,published by  Taylor &Francis ,2024

15.  Dr L. Nirmala Devi, A. Chaitanya “Localization of Defects on PCBs with Diverse Acquisitions” Journal of Image and Graphics Oct 2023 , Journal of Image and Graphics, Vol. 12, No. 1, 2024

16.  Dr. L. Nirmala Devi, G. Parameshwar “Slime Would Based Collaborative Deep

Bolzmann Machine for Intrusion Detection Model in Mobile Ad Hoc Network”, SSRG International Journal of Electrical Journal of Electronics Engineering, Vol 10 issue 11,31-38, Nov 2023, Doi:10.14445/23488379/IJEEE-V10111P103

17.  Dr L. Nirmala Devi, G. Parameshwar “Fire-fly cyclic golden jackle optimization algorithm with wavelet artificial neural network s for blackmailing attack detection in

MANETs” International journal of system of systems Engg, doi:10.1504/ijsse.2025.100058971) Scopus indexed with H- index 20, Inderscience Publisher Sep 2023

18.  Dr.L. Nirmala Devi, K.Venkata subba Reddy “Spatio-Temporal Joint Descriptor for action recognition from skeleton Sequences” Journal of Data Acquisition and Processing,ISSN:1004-9037,DOI:10.5281/zendo.7923019,2023.

19.  Dr L.Nirmala Devi ,K.Venkata Subba Reddy ,B.Pavani “Relay-assisted wireless energy harvesting for multihop clustered IoT network” September 2023 Intelligent and Converged Networks 4(3):206-224 Follow journal DOI: 10.23919/ICN.2023.0018

20.  Dr L.Nirmla Devi ,Spandana Bandari “A Comprehensive Survey: Benefits, Recent

Works, Challenges of Optimal UAV Placement for Maximum Target Coverage” 

DOI: 10.1007/978-981-19-8742-7_58,  February 2023

21.  Dr L.Nirmala Devi ,R.Jawaharlal “HA2CR: Hierarchical Authentication Assisted Clustered Routing for Wireless Multimedia Sensor Networks” January 2023 Journal of Communications  DOI: 10.12720/jcm.18.1.58-67

22.  Dr L.Nirmala Devi ,B .Pavani, K.Venkata Subba Reddy “Energy enhancement and efficient route selection mechanism using H-SWIPT for multi-hop IoT Networks” 

                       Journal   of   Intelligent   and   Converged   Networks   ,ISSN:    2708-

6240,DOI:10.23919/ICN.2022.0013.

23.  Dr.L.NirmalaDevi,K.Venkata Subba Reddy “View Invariant Spatio-Temporal Descriptor for action recognition from Skeleton Sequences”  IEEE Transactions on

ArtificialIntelligence,October22,ISSN:26914581,https://doi.org/10.1109/TAI.2022.3 213234.2023

24.  Dr. L. Nirmala Devi, B. Pavani, “Energy-Constrained route selection mechanism using Hybrid SWIPT for IoT Networks” International Journal of Intelligent Engineering systems (IJIES), Vol.15, No.3, pp.554-565, 2022.

25.  Dr .L.Nirmala Devi ,S.K. Satyanarayana ,Dr A. Nageswar Rao “MPIGA – Multipath Selection Using Improved Genetic Algorithm” International Journal of Communication Networks and Information Security ISSN: 2073-607X, 2076-0930 Volume 14 Issue 1s Year 2022 Page 67:78

26. 

Dr.L.Nirmala Devi, Spandana Bandari, “An optimal UAV height localization for maximum target coverage using improved deer hunting optimization algorithm”,International Journal of Intelligent Robotics and

Applications volume 6, pages773–790 (2022)

27.  Dr.L.Nirmla Devi ,S.K Satyanarayana,  “A Reliable Link selection  and data aggregation Strategy for  Wireless Multimedia Networks”,IEEE Sensors Letters ,May 2022,ISSN: 2475-1472,https://doi.org/10.1109/LSENS.2022.3178756. 

28.  Dr. L. Nirmala Devi, K. VenkataSubbareddy, “COVID-19 detection through Convolutional Neural Networks and Chest X-Ray images”, Int. J. Medical Engineering and Informatics, Vol. 14, No. 4, 2022, pp.336-346.

29.  Dr. L. Nirmala Devi, R. Jawaharlal Rathod, “Quality and Energy Aware multipath routing in Wireless Multimedia Sensor networks”, Journal of Communications, Vol.17, No.8, 2022. 

30.  Dr. L. Nirmala Devi, P.Srividya “Trust Enabled Energy Effective Optimal Framework for detection of intrusions in the network using AI Scheme” Accepted in Journal of Soft Computing Springer Nature.

31.  Dr. Nirmala Devi,G. Karthik Reddy, “Optimal Relay Coil Placement in Magnetic Resonant Coupling based Power Transfer” IEEE Communication Letters, Vol.25, No.9, pp.2874-2878, 2021.

32.  Dr.L.Nirmala Devi, A. Nageswra Rao, “On Maximizing the Coverage and Network Lifetime in Wireless Sensor Networks through Multi-Objective Metaheuristics”Journal of Institution of Engineers (India): Series B, Vol.102, pp.111-122, November2020.

33.  Dr.L.Nirmala Devi, A. Nageswra Rao, “On the Relay Node Placement in WSNs for Lifetime Maximization through Metaheuristics”Materials Today Proceedings, October 2020, https://doi.org/10.1016/j.matpr.2020.09.527

34.  Dr.L.Nirmala Devi, Putti Srividya “Multi-Strategic Trust Evaluation for Intrusion Detection in Wireless Sensor Networks” International Journal of Intelligent Engineering and Systems, Vol.14, No.2, pp.106-120, 2020.

35.  Dr.L.Nirmala Devi, R. Jawaharlal Rathod, “Collaborative correlation coding assisted routing algorithm for Wireless Mesh Sensor Networks” Journal of Critical Reviews, 7, pp.2907-2918, August 2020.

36.  Dr. L. Nirmala Devi, G. Karthik Reddy “Scheduling Protocol for throughput maximization in Barrowing-Aided Energy Harvesting System” IEEE Journal of Networking Letters, Vol.2, No.4, pp.171-174, 2020.

37.  Dr. Nirmala Devi, A. Nageswra Rao, “Clustered Relay Node Placement for WSN through Metaheuristics Algorithm” International Journal of Intelligent Engineering and Systems, Vol.13, No.6, 67-80,2020.

38.  Dr.L. Nirmala Devi, A. Nageswra Rao, “Location Aware Relay Node Placement for Energy Constrained Wireless Sensor Networks”, International Journal of Advanced Trends in Computer Science and Engineering, Volume 8, No.3, pp.519-526, May - June 2019.

39.  Dr.Nirmala Devi, B.  Lasyasri, “Integration Approaches and Challenges of WSN for IoT” International Research Journal of Engineering and Technology (IRJET), Volume:

05 Issue: 05, 1246-1248, May-2018.

40.  Dr.Nirmala Devi,B.  Lasyasri,“Pulse Based Modulation Techniques for Wireless Nano sensor Networks” International Journal of Innovative Science and Research Technology, Volume 3, Issue 4, pp.365-369, April – 2018.

41.  Dr. L. Nirmala Devi, B.  Lasyasri, “Energy Optimization in WSN Using Channel Coding” World Journal of Engineering Research and Technology WJERT, Vol. 4, Issue 1, pp.279-288, December 2017.

42.  Dr.L. Nirmala Devi,B.Lasyasri “Blind Spectrum Sensing Techniques in cognitive Radio networks”, International Journal of Applied Science, Engineering and Management, Vol,06, No.4 July 2017, ISSN 2320-3439. 

43.  Dr. L. Nirmala Devi, B.  Lasyasri, “Improve the Data Security based on Cluster Method for the Mobile Sink in WSN” International Journal of Research, Volume 04 Issue 14, pp.25-30, November 2017.

44.  Dr.Nirmala Devi, B.  Lasyasri, B. Ashok Raj, “A Novel Approach for Efficient LDPC Coding” International Journal of Advance Research, Ideas and Innovations in Technology (IJARIIT), Vol. 3, Issue 3, May 2017.

45.  Dr.L. Nirmala Devi “Detection of Block hole attack in MANET under AODV Routing Protocol “International Journal of Computer Network and Wireless Communication(IJCNWC), ISSN:2250-3501 Vol.5 No2, April 2015. 

46.  Dr. L. Nirmala Devi “Implementation of SDR-based high frequency range OFDM transceiver for Dedicated Short Range Communication” International Journal of Advanced Research in Computer and Communication Engineering,Vol. 4, Issue 11, November 2015.

47.  Nirmala Devi, Dr. V.M.PandhariPande, “Reduction of Blocking Probability in Shared protected optical network” International journal of Computer science and information technology (IJCSIT),Vol-3, No.4, page no139-144, August 2011.

48.  L. Nirmala Devi, Dr. V.M.PandhariPande, “Traffic Grooming in WDM Networks with Path Protection” International journal of Distributed and Parallel system (IJDPS),Vol-2, No.4,pp.43-52, July 2011.