Performance Analysis of Normalized Min-Sum Decoder for LDPC using non-uniform Quantization Pargunarajan K, Gandhiraj R, Jayakumar M 10th International Conference on Wireless Communications Signal Processing and Networking Wispnet 2025, 2025 Very high data rates and decoding computational complexity place strict constraints in 5G and 6G communications. In this paper, non-uniform Quantized Decoding algorithm is proposed for Low-density Parity Check codes (LDPC). In the proposed algorithm, the check node updating process is carried out using quantization, which reduces complexity. The Sum Product Algorithm (SPA) is iterative message passing decoding techniques offer the optimal performance for LDPC codes. Implementations use message-passing decoding with more precision, results extremely high complexity. In Iterative, message-passing (MP), trapping sets and absorbing sets causes low error floor. In this article non-uniform quantization proposed to overcome dynamic range of values over uniform quantization. Simulation results provide coding gain increases closer to of 0.5 dB in higher SNR and has good error floor at 10−5.
Robotic Arm-Simulation and Analysis Abhinavendra A R, Ajay S, Abijith Narayana J, Ganesan M, Gandhiraj R 2025 IEEE International Conference on Distributed Computing VLSI Electrical Circuits and Robotics Discover 2025 Proceedings, 2025
Enhancing BER Performance in Phase Noise using KNN-based Symbol Detection Sharanya Krishnamurthy, Manoj Panda, Ramesh Chinthala, Gandhiraj R 2024 15th International Conference on Computing Communication and Networking Technologies Icccnt 2024, 2024 The performance of a wireless system is directly dependent on the accuracy of retrieving the transmitted message from the noisy signal received at the demodulation end. Over the years many methods have been developed to reduce the Bit Error Rate(BER) at the receiver. Recently, machine learning algorithms have been explored as an alternative to traditional symbol detection methods to enhance overall performance. M-ary QAM is a popular digital modulation scheme used in Wireless communication owing to its high data rate. Nevertheless, for a given signal-to-noise ratio, the BER for QAM is higher than the BPSK or QPSK systems, which provide a lower data rate. The BER can be reduced using ML classifiers such as the K-Nearest Neighbours Algorithm (KNN) to leverage the high data rate of QAM and have more efficient symbol detection. This paper describes the implementation of KNN to QAM symbol detection and the resultant decrease in BER is observed to be around 4-6 dB.
Minimal Energy Cluster Head Selection in LEACH for WSNs : A Sea Lion Inspired Algorithm Pooja K, P Dharshini Muthu Bala, Rishi Kumar, Saaral S, Gandhiraj R 2024 International Conference on Wireless Communications Signal Processing and Networking Wispnet 2024, 2024 Due to the increasing significance and applications of wireless sensor networks (WSNs), research has focused on addressing the crucial issue of depletion. Minimizing energy consumption is essential for extending the network lifetime. LEACH, a popular routing algorithm for WSNs, helps achieve this goal. However, LEACH has certain limitations. This work introduces PDU-SLnO LEACH, which proposes solutions to these limitations. The key idea involves dividing the communication area into clusters and allocating cluster heads for each cluster using the PDU-SLnO cluster head selection algorithm, thereby reducing transmission distances and overall energy consumption. The results demonstrate a reduction in total energy consumption and the throughput is also increased by 20%. There is an extension of network lifetime and increased stability compared to the original LEACH.
Network Provisioning in SDN: Optimizing Network Resources for Enhanced Performance G D Nithin, D Yathis Kumar, S. Nithin, K S Sree Hari Nathan, R Gandhiraj 2024 International Conference on Wireless Communications Signal Processing and Networking Wispnet 2024, 2024 Software defined Networking (SDN) provides a comprehensive view of the network and is good at handling changes in a traditional and simple network without needing a lot of updates. The purpose of this study was to determine the performance of SDN in various scenarios. However, the usual SDN architecture faced problems in handling bottlenecks. In our early research, we referred a lot of research papers for creating a model for a regular wired network with less nodes and traffic using standard SDN architecture. We developed the model using NetSim and observed the various network parameters such as overall throughput, delay and jitter. The recorded throughput exhibited a decrease, accompanied by increased delay and jitter, when assessing this basic network configuration. Later, we propose a new model with improved SDN performance, which resembles a normal wireless IoT network in real-time. The proposed model contains a novel priority and congestion control mechanism, called as ‘Updated SDN’, which has worked well in reducing network congestion especially in practical situations. It also maintains network's quality of service. The model provided results which had a significant improvement of 2% from the previous model. In Overall, our model looks at network delays and congestion at the SDN controller and delivers the packet properly with minimized loss. The results were analyzed by comparing the results of updated SDN and the standard SDN.
Malicious Node Detection in VANETs via Enhanced DSR and ML Palaniappan AN, Pranav J, Shivamanikkavasakam S, Santosh Kumar, Gandhiraj R 2024 International Conference on Wireless Communications Signal Processing and Networking Wispnet 2024, 2024
Phase Noise Mitigation in Bistatic Pulse–Doppler Radar via Ornstein-Uhlenbeck State-Space Modeling A Venugopal, CV Anjana, VKA Brahma, R Gandhiraj, ... 2026 International Conference on Wireless Communications Signal Processing … , 2026 2026
Performance Analysis of AI-Driven GPS Spoofing and Mitigation System M Hanuman, SDV Gautham, D Mohan Kumar, N Menakadevi, ... 2026 International Conference on Wireless Communications Signal Processing … , 2026 2026
Realistic GPS Spoofing Dataset Generation with RF Augmentation for Adversarial Environment Simulation M N, V Venkatesan V, KP Reddy, G R 2025 IEEE International Conference on Distributed Computing, VLSI … , 2025 2025
Two-Tier Intrusion Detection Mechanism in SOME/IP Automotive Communication Systems AR Abhinavendra, S Ajay, NJ Abijith, M Ganesan, R Gandhiraj 2025 IEEE International Conference on Distributed Computing, VLSI … , 2025 2025
Robotic Arm-Simulation and Analysis AR Abhinavendra, S Ajay, NJ Abijith, M Ganesan, R Gandhiraj 2025 IEEE International Conference on Distributed Computing, VLSI … , 2025 2025 Citations: 1
Realistic GPS Spoofing Dataset Generation with RF Augmentation for Adversarial Environment Simulation N Menakadevi, V Venkatesan, KP Reddy, R Gandhiraj 2025 IEEE International Conference on Distributed Computing, VLSI … , 2025 2025 Citations: 1
Two-Tier Intrusion Detection Mechanism in SOME/IP Automotive Communication Systems B Jammalamadaka, R Gandhiraj, MK Panda, A Agarkar 2025 IEEE International Conference on Distributed Computing, VLSI … , 2025 2025
Standalone Kinematic Evaluation of a 5-DoF Robotic Manipulator via MATLAB Simulation JA Narayana, S Ajay, M Ganesan, R Gandhiraj 2025 IEEE North Karnataka Subsection Flagship International Conference … , 2025 2025
Performance Analysis of Normalized Min-Sum Decoder for LDPC using non-uniform Quantization K Pargunarajan, R Gandhiraj, M Jayakumar 2025 International Conference on Wireless Communications Signal Processing … , 2025 2025
Empowering Object Detection in Dynamic Environments with AI-Driven MIMO Radar Technology N Praneeth, TS Narayana, BRS Kiran, MR Baig 2024 IEEE Region 10 Symposium (TENSYMP), 1-6 , 2024 2024 Citations: 2
Enhancing BER Performance in Phase Noise using KNN-based Symbol Detection S Krishnamurthy, M Panda, R Chinthala 2024 15th International Conference on Computing Communication and Networking … , 2024 2024 Citations: 1
Performance Appraisal Using Leach Protocol in Wireless Energy Harvesting System K Cheni, M Greeshma, SU Kumar, S Thanusha, R Gandhiraj International Conference on Computing and Machine Learning, 433-442 , 2024 2024
Network Provisioning in SDN: Optimizing Network Resources for Enhanced Performance GD Nithin, DY Kumar, S Nithin, KSSH Nathan, R Gandhiraj 2024 International Conference on Wireless Communications Signal Processing … , 2024 2024 Citations: 3
Malicious node detection in VANETs via enhanced DSR and ML AN Palaniappan, J Pranav, S Shivamanikkavasakam, R Gandhiraj 2024 International Conference on Wireless Communications Signal Processing … , 2024 2024 Citations: 2
Minimal Energy Cluster Head Selection in LEACH for WSNs: A Sea Lion Inspired Algorithm K Pooja, PDM Bala, R Kumar, S Saaral, R Gandhiraj 2024 International Conference on Wireless Communications Signal Processing … , 2024 2024
Performance analysis of novel Joint GPS Anti-jamming and Anti-spoofing detection B Balaji, R Gandhiraj, GA Shanmugha Sundaram 2023 IEEE 20th India Council International Conference (INDICON), 723-728 , 2023 2023 Citations: 1
Simulation Based Closed Loop Scenario Fuzzing for Safety Critical ADAS Applications AS Agarkar, R Gandhiraj, MK Panda, S Srivastava 2023 IEEE 20th India Council International Conference (INDICON), 759-764 , 2023 2023 Citations: 4
Comparative Analysis of Skin Lesions Classification Using Machine Learning Classifiers and Lesnet-22 Architecture N Balathaarani, R Gandhiraj 2023 IEEE 20th India Council International Conference (INDICON), 355-361 , 2023 2023 Citations: 1
Spatial Diversity Deconstruct of C-band Scatter Components in Multistatic RaDaR Datasets using Machine Learning Techniques SS GA, H Surej, PK KA Authorea Preprints , 2023 2023
A Monte Carlo simulation study of L-band emission upon gamma radiolysis of water KAP Kumar, GAS Sundaram, S Venkatesh, R Gandhiraj, ... Radiation Physics and Chemistry 207, 110883 , 2023 2023 Citations: 4
MOST CITED SCHOLAR PUBLICATIONS
Low cost digital transceiver design for Software Defined Radio using RTL-SDR SKP Sruthi M B,Abirami M, Akhil Manikkoth, Gandhiraj R IEEE International Multi Conference on Automation, Computing, Control … , 2013 2013 Citations: 84
Modern analog and digital communication systems development using GNU Radio with USRP R Gandhiraj, KP Soman Telecommunication Systems 56 (3), 367-381 , 2014 2014 Citations: 57
Real time implementation of FMCW radar for target detection using GNU radio and USRP S Sundaresan, C Anjana, R Gandhiraj 2015 International Conference on Communications and Signal Processing (ICCSP … , 2015 2015 Citations: 49
Exploiting GNU radio and USRP: An economical test bed for real time communication systems M Abirami, V Hariharan, MB Sruthi, R Gandhiraj, KP Soman 2013 fourth international conference on computing, communications and … , 2013 2013 Citations: 48
Steering angle prediction for autonomous driving using federated learning: The impact of vehicle-to-everything communication MP Aparna, R Gandhiraj 2021 12th international conference on computing communication and networking … , 2021 2021 Citations: 45
Analog and digital modulation toolkit for software defined radio R Gandhiraj, R Ram, KP Soman Procedia Engineering 30, 1155-1162 , 2012 2012 Citations: 45
Auditory-based wavelet packet filterbank for speech recognition using neural network R Gandhiraj, PS Sathidevi 15th International Conference on Advanced Computing and Communications … , 2007 2007 Citations: 36
Real-time communication system design using RTL-SDR and Raspberry Pi R Danymol, T Ajitha, R Gandhiraj 2013 International Conference on Advanced Computing and Communication … , 2013 2013 Citations: 33
Driver drowsiness detection and warning using facial features and hand gestures AS Agarkar, R Gandhiraj, MK Panda 2023 2nd International Conference on Vision Towards Emerging Trends in … , 2023 2023 Citations: 32
An experimental study on channel estimation and synchronization to reduce error rate in OFDM using GNU radio C Anjana, S Sundaresan, T Zacharia, R Gandhiraj, KP Soman Procedia Computer Science 46, 1056-1063 , 2015 2015 Citations: 25
Plug-ins for gnu radio companion S Sriram, G Srivasta International Journal of Computer Applications 52 (16) , 2012 2012 Citations: 21
Real-time video streaming using GStreamer in GNU Radio platform S Nimmi, V Saranya, R Gandhiraj 2014 International Conference on Green Computing Communication and … , 2014 2014 Citations: 18
Spectrum Sensing using Compressed Sensing Techniques for Sparse Multiband Signals SKP Avinash.P, Gandhiraj.R International Journal of Scientific & Engineering Research 3 (5), 5 , 2012 2012 Citations: 17
OpenBTS based microtelecom model: A socio-economic boon to rural communities N Prasannan, G Xavier, A Manikkoth, R Gandhiraj, R Peter, KP Soman 2013 International Mutli-Conference on Automation, Computing, Communication … , 2013 2013 Citations: 16
Performance analysis of real time OFDM based communication system using GNU radio and USRP M Abirami, R Gandhiraj, KP Soman International Journal of Advanced Research in Computer Science and Software … , 2013 2013 Citations: 15
Huffman coding and decoding using Android J Radhakrishnan, S Sarayu, KG Kurian, D Alluri, R Gandhiraj 2016 International Conference on Communication and Signal Processing (ICCSP … , 2016 2016 Citations: 14
Microwave tomography data deconstruct of spatially diverse c-band scatter components using clustering algorithms GAS Sundaram, R Gandhiraj, BN Binoy, SI Harun, SN Surya IEEE Access 10, 98013-98033 , 2022 2022 Citations: 12
Application and analysis of smart meter data along with RTL SDR and GNU radio M Aswathi, R Gandhiraj, KP Soman Procedia Technology 21, 317-325 , 2015 2015 Citations: 12
Radiation pattern measurement of log-periodic antenna on GNU Radio platform T Ajitha, E Joy, A AnishJoyce, R Gandhiraj 2014 International Conference on Green Computing Communication and … , 2014 2014 Citations: 12
Machine learning plug-ins for gnu radio companion R Anil, R Danymol, H Gawande, R Gandhiraj 2014 International Conference on Green Computing Communication and … , 2014 2014 Citations: 12