No Record Found.

Journal
• MIMO OTFS in 5G NR Resource Grid by Reddy B. S., Das S. S. IEEE Communication Letters - (Accepted/In-Press)
• Performance Analysis of Multi-User OTFS, OTSM, and Single Carrier in Uplink by Reddy B.V.S., Velampalli C., Das S.S. IEEE Transactions on Communications 72 1428-1443 (2024)
• VLSI Architecture for Implementing OTFS by Shadangi A. R., Das S. S., Chakrabarti I. Wireless Pers Communication 137 1931-1944 (2024)
• Low Complexity VLSI Architecture for OTFS Transceiver under Multipath Fading Channel by Shadangi A. R., Chakrabarti I. , Das S. S. IEEE Transactions on Very Large Scale Integration Systems 32 1285-1296 (2024)
• Analysis of temporal robustness in massive machine type communications by Goswami D., Dzaferagic M. , Siljak H. , Das S. S., Marchetti N. IEEE Internet of Things Journal 10 6915-6927 (2023)
• Distributed Time Synchronization in Ultradense Networks by Goswami D., Marchetti N. , Das S. S. IEEE Systems Journal early access - (2021)
• Time domain channel estimation and equalization of CP-OTFS under multiple fractional dopplers and residual synchronization errors by Das S.S., Rangamgari V., Tiwari S., Mondal S.C. IEEE Access 9 10561-10576 (2021)
• Non Orthogonal Multiple Access with Orthogonal Time Frequency Space Signal Transmission by Chatterjee A., Kumar V. , Tiwari S. , Das S. S. IEEE Systems Journal early access - (2020)
• Device-to-devicecommunications under transceiver impairments in OFDMA cellular networks by Dahat P. A., Das S. S. PhysicalCommunication 40 - (2020)
• Circularly Pulse Shaped Orthogonal Time Frequency Space Modulation by Tiwari S., Das S. S. Electronic Letters 56 157-160 (2020)
• Multiple QoS provisioning with Pre-emptive Priority Schedulers in Multi-Resource OFDMA networks by Palit B., Das S. S., Kamavaram Y. Wireless Networks 26 3451-3470 (2020)
• Iterative Sub-band and Power Allocation in Downlink Multi-band NOMA by Goswami D., Das S. S. IEEE Systems Journal 14 5199-5209 (2020)
• Time Domain Channel Estimation and Equalization of CP-OTFS Under Multiple Fractional Dopplers and Residual Synchronization Errors by Das S. S., Rangamgari V. , Tiwari S. , Mondal S. C. IEEE ACCESS 9 10561-10576 (2020)
• Spectral Efficiency Analysis in Presence of Correlated Gamma-Lognormal Desired and Interfering Signals by Chatterjee A., Mukherjee S. , Das S. S. IEEE Transactions on Vehicular Technology 68 5173-5178 (2019)
• Link Adaptation Schemes based on Parametric Estimation of SNR distribution over Nakagami-m fading channels by Mohan K., Das S. S., Ray P. IEEE Transactions on Communications 67 1537-1553 (2019)
• Low complexity LMMSE Receiver for OTFS by Tiwari S., Das S.S., Rangamgari V. IEEE Communications Letters 23 2205-2209 (2019)
• Link Adaptation using Dynamically Allocated Thresholds and Power Control by Saha J., Das S. S., Mukherjee S. Wireless Personal Communications - (2018)
• Low-Complexity Joint-MMSE GFDM Receiver by Tiwari S., Das S. S. IEEE Transaction on Communications 66 1661-1674 (2018)
• Analytical Performance Evaluation of Full-Dimensional MIMO Systems using Realistic Spatial Correlation Model by Chatterjee S., Chatterjee A. , Das S. S. IEEE Transactions on Vehicular Technology 67 5597-5612 (2018)
• A Cross Layer Framework of Radio Resource Allocation for QoS Provisioning in Multi-channel Fading Wireless Networks by Palit B., Das S. S. Wireless Networks - (2018)
• Downlink Signal-to-Interference Ratio and Spectral Efficiency of MIMO Cellular Networks using Truncated Lognormal Approximation by Chatterjee A., Parida P. , Das S. S. IEEE Systems Journal PP 1-12 (2018)
• Low Complexity User Selection with Optimal Power Allocation in Downlink NOMA by Nain G., Das S. S., Chatterjee A. IEEE Wireless Communication Letters - (2017)
• Analytical Calculation of Rician K-Factor for Indoor Wireless Channel Models by Mukherjee S., Das S. S., Chatterjee A. , Chatterjee S. IEEE Access - (2017)
• Multi-Objective Framework for Dynamic Optimization of OFDMA Cellular Systems by P., Das S. S. IEEE Access vol. 4,pp. 1889-1914 (2016)
• Analysis of Bandwidth Requirement of Users in Flexible Reuse Cellular Networks by Subbarao Boddu, B. V. Philip and Suvra Sekhar Das IEEE Communication letters vol 20 issue 3 - (2016)
• Signal to Interference Based Antenna Selection for Spatial Multiplexing by Batabyal S., Das S. S. Wireless Personal Communications 83 975-993 (2015)
• Performance Analysis of Device-to-Device Communications in Cellular Networks under Varying Load Conditions by Dahat P. ., Das S. S. Wireless Personal Communications 83 - (2015)
• Performance Analysis of Flexible Reuse in Cellular Networks by Subba Rao Boddu, Suvra Sekhar Das, R.V. Rajakumar IET Journal on Communications Vol. 9, Iss. 6 - (2015)
• Performance Evaluation of Mixed Traffic Schedulers in OFDMA Networks by Basabdatta Palit, Suvra Sekhar Das Wireless Personal Communications vol83, iss2 895-924 (2015)
• Discrete Fourier Transform Spreading based Generalized Frequency Division Multiplexing by Suvra Sekhar Das, Shashank Tiwari Electronic Letters, vol 51, Issue 10 - (2015)
• Gos Evaluation for OFDMA Cellular Networks. Wireless Personal Communications by Subhendu Batabyal, Suvra Sekhar Das Wireless Personal Communications, V-83, I-2, 925-957 (2015)
• Precoded GFDM System to Combat Inter Carrier Interference by Shashank Tiwari, Suvra Sekhar Das IET Journal on Communications Vol. 9, Iss.15 - (2015)
• QoS Enhancement in OFDM based Systems under Transceiver Impairments by Dahat P. A., Das S. S. Physical Communications 16 25-36 (2015)
• Area Spectral Efficiency of Co-Channel Deployed OFDMA Femtocell Networks by Chandhar, P. and Suvra Sekhar Das IEEE Transactions on Wireless Communications vol 13, issue 7, Jul - (2014)
• Bandwidth Partitioning and SINR Threshold Analysis of Fractional Frequency Reuse in OFDMA Cellular Networks for Real Time and Best Effort Traffic by Boddu, S. R., A. M., Philip B. V., Das S. S., Raja R. V. Wireless Personal Communications 72 - (2013)
• Variable sub-carrier bandwidth in OFDM framework by Suvra Sekhar Das, E. De Carvalho, and R. Prasad IEE Electronic Letters 43 - (2007)
• Performance Analysis of OFDM systems with Adaptive Sub Carrier Bandwidth by Suvra Sekhar Das, E. De Carvalho, and R. Prasad IEEE Transaction on Wireless Communications, v7 - (2007)
Conferences
• Location Assisted Beamforming for LEO-Satellite based 6G Direct-to-Cell Connectivity by Velampalli C., Reddy B. S., Das S. S. 17th International Conference on COMmunication Systems & NETworkS - (Accepted/In-Press)
• Model-based MIMO Angle of Arrival Estimation for Next Generation Wireless Communication Systems by Barik A., Das S. S. NCC - (2025)
• A Novel FSM-Based Hardware-Efficient, Power, and Delay Optimized Transmitter Architecture for OTFS by Shadangi A. R., Chakrabarti I. , Das S. S. IEEE 21st India Council International Conference (INDICON) - (2024)
• Multi-user OTFS with Multi-antenna Transmission by Reddy B. S., Das S. S., Velampalli C. THE 15th INTERNATIONAL IEEE CONFERENCE ON COMPUTING, COMMUNICATION AND NETWORKING TECHNOLOGIES (ICCCNT) - (2024)
• Area-Delay-Power Efficient VLSI Architecture of OTFS Transceiver in Multipath Fading Channel by Shadangi A. R., Das S. S., Chakrabarti I. 15th International Conference on Computing Communication and Networking Technologies (ICCCNT) 1-7 (2024)
• Beam Coverage Analysis of LEO Satellite in the Downlink for 6G NR-NTN Integrated Network by Velampalli, C., Reddy B. ., Das S. S. 21st India Council International Conference (INDICON) - (2024)
• Coexistence of OTFS, OTSM, and Single Carrier in Multi-User Uplink Scenarios by Reddy B. S., Velampalli C. , Das S. S. 2024 IEEE 21st India Council International Conference (INDICON) - (2024)
• Parametric Estimation of SINR Distribution Using Quantized SINR Samples for Maximizing Average Spectral Efficiency by K K. M., Das S. S. Twenty Seventh National Conference on Communications (NCC-2021) Virtual Conference 27 - 30 July 2021 - (2021)
• OTFS: Interleaved OFDM with Block CP by Rangamari V. K., Tiwari S. , Das S. S., Mondal S. 2020 National Conference on Communications (NCC) - (2020)
• Generalized Approach for Analysing Quantum Key Distribution Experiments by Maitra A., Das S.S. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 11898 LNCS 472-491 (2019)
• Generalized Approach for Analysing Quantum Key Distribution Experiments by Maitra A., Das S. S. 20th International Conference on Cryptology in India - (2019)
• Downlink Coverage Analysis of 3-D Ultra Dense Networks with Realistic Propagation Conditions by Chatterjee A., Das S.S. International Symposium on Advanced Networks and Telecommunication Systems, ANTS 2019-December - (2019)
• System Level Performance Analysis using Semi-Analytical Framework for Area-Averaged SINR Distribution for OFDMA Cellular Systems by K K. M., Das S. S. 90th IEEE VTC fall - (2019)
• Design of troposcatter broadband link based on SCFDE by Garg A., Das S.S. 11th IEEE International Conference on Advanced Networks and Telecommunications Systems, ANTS 2017 1-6 (2018)
• A Functional Complexity Framework for Dynamic Resource Allocation in VANETs by Pattanayak K., Chatterjee A., Dzaferagic M., Das S.S., Marchetti N. 2018 14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018 458-463 (2018)
• Design of Troposcatter Broadband Link based on SCFDE by Garg A., Das S. S. International Conference on Advanced Networks and Telecommunications Systems - (2017)
• Evaluation of spatial correlation and its effect on channel capacity of uniform planar antenna array by Chatterjee A., Chatterjee S. , Das S. S. National Conference on communication - (2017)
• Comparative analysis of waveforms for fifth generation mobile networks by Tiwari S., Chatterjee S. , Das S. S. IEEE International Conference on Advanced Networks and Telecommunications Systems - (2016)
• Hardware Implementation of MIL-STD-1553 Protocol Over OFDMA-PHY Based Wireless High Data Rate Avionics Systems by , Das S. , Chakrabarti I. , Das S. S. IEEE-ANTS - (2016)
• MIL-STD-1553 Based Wireless Visible Light Communication System by , Das S. , Chandrakar N. , Das S. S. IEEE International Conference on Advanced Networks and Telecommunications Systems - (2016)
Patent
• A multiuser uplink receiver for different types of multiple access schemes by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• A multiuser uplink receiver for different types of multiple access schemes. by Reddy B. S., Velamapalli C. , Das S. S. - (2024)
• A new transmission scheme for different waveforms using partial loading to enhance reliabilitty by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• A new transmission scheme for different waveforms using partial loading to enhance reliability by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• Method and apparatus for interference cancellation based reception for single user and multi-user scenarios by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• METHOD AND APPARATUS FOR INTERFERENCE CANCELLATION BASED RECEPTION FOR SINGLE USER AND MULTI-USER SCENARIOS by Reddy B. S., C. V., Das S. S. - (2024)
• METHOD AND APPARATUS FOR MULTI-ACCESS UPLINK TRANSMISSION OF DIFFERENT WAVEFORMS by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• MIMO-OTFS Transmission and Reception for Next Generation WLAN Communication Systems by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• MIMO-OTFS Transmission and Reception for Next Generation WLAN Communication Systems by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• MIMO-OTFS transmission and reception with partial loading for coverage enhancement in Next Generation WLAN Communication Systems by Reddy B. S., Velamapalli C. , Das S. S. - (2024)
• MIMO-OTFS transmission and reception with partial loading for coverage enhancement in Next Generation WLAN Communication Systems by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• A mimo receiver using time-frequency channel estimates for next generation wireless communication systems by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• Unified multiple access (ma) based system for uplink transmission of data by multiple users by Reddy B. S., Velampalli C. , Das S. S. - (2024)
• A mimo receiver using time-frequency channel estimates for next generation wireless communication systems by Reddy B. S., Velamapalli C. , Das S. S. - (2024)
• Unified multiple access (ma) based system for uplink transmission of data by multiple users, by Reddy B. S., Das S. S. - (2024)
• METHOD AND APPARATUS FOR MULTI-ACCESS UPLINK TRANSMISSION OF DIFFERENT WAVEFORMS. by Reddy B. S., Velampalli C. , Das S. S. - (2023)
• A Generalized FFT-IFFT Structure Based Frequency Division Multiplexing Transceiver by Tiwari S., Das S. S. - (2017)
• A LOW COMPLEXITY GENERALIZED FREQUENCY DIVISION MULTIPLEXING TRANSCEIVER by Tiwari S., Farhang A. , Das S. S. - (2015)
• A PRECODED GENERALIZED FREQUENCY DIVISION MULTIPLEXING SYSTEM. by Tiwari S., Das S. S. - (2015)
• 6. A Method for Ensuring High VoIP Capacity in LTE by Palit B., Das S. S. - (2014)
• A METHOD A DEVICE AND A SYSTEM FOR OBTAINING HIGH DATA RATE AND CONTINUED SERVICE OVER MULTIPLE RADIO ACCESS NETWORKS by Tiwari S., Prasad G. , Paul S. , Das S. S. - (2014)
• patent no. 214204 , A PROCESS AND A SYSTEM FOR TRANSMISSION OF DATA IN A MULTI-CARRIER ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) COMMUNICATION SYSTEM by Das S. S., Rahman M. I., Fitzek F. - (2008)
• METHOD FOR TRANSMITTING DATA IN A WIRELESS NETWORK by Das S. S., Rahman M. I., Fitzek F. - (2005)
Book
• OTFS Orthogonal time Frequency Space Modulation : A waveform for 6G by Das S. S., Prasad R. - (2021)
• Evolution of Air Interface Towards 5G : Radio Access Technology and Performance Analysis by Das S. S., Prasad R. - (2018)
• Adaptive PHY-MAC Design for Broadband Wireless Systems by Prasad R., Rahman M. I., Das S. S. - (2010)
• Single- and Multi-Carrier MIMO Transmission for Broadband Wireless Systems by Prasad R., Rahman M. I., Das S. S., Marchetti N. - (2009)
Workshop
• Performance of iterative Successive interference cancellation receiver for LDPC coded OTFS by Das S. S., Tiwari S. , Ramgamgari V. , Mondal S. C. IEEE International Conference on Advanced Networks and Telecommunications Systems - (2020)
Educational Package
• Modern Digital Communication Techniques by Das S. S. - (2017)
• Fundamentals of MIMO Wireless Communications by Das S. S. - (2016)

Principal Investigator

• STUDIES ON FADE MITIGATION CONTROL FOR MICROWAVE SATELLITE SIGNAL PROPAGATION
• SELF CONFIGURING NETWORKS : FLEXIBLE SPECTRUM SHARING FOR HOME BASE - STATION IN NEXT GENERATION MOBILE TELECOMMUNICATION SYSTEMS
• STANDARDIZATION ACTIVITY IN 4G BEYOND IN RAN
• DEVELOPMENT OF INTERFERENCE MITIGATION METHODS THROUGH BASE STATION COOPERATION IN NEXT GENERATION WIRELESS BROADBAND MOBILE COMMUNICATIONS METHODS.
• Suitability of free space optical communication link for on board data handling (OBDH) in satellite
• FADING CHANNELS & MOBILE COMMUNICATION
• Next generation telecommunication test bed (SGDRI)
• Technical Assistance for Waveform Design to Provide Packet Data Service to Earth Surface Vehicles using Satellite
• Technical Review of EnodeB and its parts
• Concept Validation Simulations of ClusterSat
• Research in Advanced Wireless Mobile Communications for Orthogonal Time Frequency Space Modulation (OTFS)
• Technical opinion about active and passive infrastructure used in telecommunication
• Consultancy Services in relation to telecom equipment namely remote radio head (RRH) used in eNodeB.
• National and Subnational Disaster Risk and Resilience Assessment and Roadmap for Telecommunication Sector, India.

Co-Principal Investigator

• DESIGN AND SIMULATION OF BASEBAND DIGITAL CDMA TRANSCEIVER
• Development of CDMA Algorithm for target update link
• Establishment of Quantum Communication Link for Space Application
• Performance Improvement of SDR in Frequency Hopping Dynamic TDMA
• Study of different aspects of secured Quantum communication
• Virtual Labs Phase II