Separation of sinusoids using the constrained adaptive line enhancer. - Ratnam V. Raja Kumar; Ranendra N. Pal (ICASSP, 1984)

A gradient algorithm for center-frequency adaptive recursive bandpass filters. - Ratnam V. Raja Kumar; Ranendra N. Pal (Proc. IEEE, 1985)

Recursive center-frequency adaptive filters for the enhancement of bandpass signals. - R. V. Raja Kumar 001; Ranendra N. Pal (IEEE Trans. Acoust. Speech Signal Process., 1986)

Tracking of bandpass signals using center-frequency adaptive filters. - Ratnam V. Raja Kumar; Ranendra N. Pal (IEEE Trans. Acoust. Speech Signal Process., 1990)

Mean convergence behavioural analysis of IIR adaptive filters. - Ratnam V. Raja Kumar; C. B. Rama Rao (Signal Process., 1997)

An end-connected dual bus topology for metropolitan area networks. - M. R. Ramapriya; S. Beotra; Maharaj Mukherjee; Ratnam V. Raja Kumar; P. Dhar (Comput. Networks, 1999)

A near-optimum detector with reduced out-of band response for narrowband signals. - Ratnam V. Raja Kumar (IEEE Trans. Signal Process., 2000)

Estimation of time-varying AR models of speech through Gauss-Markov modeling. - Krishna M. Malladi; Ratnam V. Raja Kumar (ICASSP (6), 2003)

Recursive estimation of wavelet based time varying AR models of speech. - K. Sreekanth Reddy; Ratnam V. Raja Kumar (ICASSP (6), 2003)

A switched adaptive predictor for lossless compression of high resolution images. - Anil Kumar Tiwari; Ratnam V. Raja Kumar (ICC, 2005)

Optimal slope bin classification in gradient adjusted predictor for lossless compression of medical images. - Anil Kumar Tiwari; Ratnam V. Raja Kumar (ICIP (2), 2005)

Performance analysis of the UMTS system for Web traffic over dedicated channels. - Manju Sarvagya; Ratnam V. Raja Kumar (ITRE, 2005)

Optimized VLIW Architecture for Non-zero IF QAM-Modem Implementations. - Alok Kumar Pani; Ratnam V. Raja Kumar (VLSI Design, 2006)

Performance analysis of a novel matched filter detector with reduced out-of-band response for narrowband signals. - Ratnam V. Raja Kumar (IEEE Trans. Signal Process., 2006)

Least-Squares Based Switched Adaptive Predictors for Lossless Video Coding. - Anil Kumar Tiwari; Ratnam V. Raja Kumar (ICIP (6), 2007)

Multiple Access Using MSE-OFDM. - Poonam Singh; Saswat Chakrabarti; R. V. Raja Kumar 001 (CCNC, 2008)

Symbol timing synchronization for ultra-wideband (UWB) multi-band OFDM (MB-OFDM) systems. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (COMSWARE, 2008)

An Efficient Near Blind Carrier Frequency Offset Estimation Scheme for MIMO-OFDM Systems. - S. M. Sameer 001; Ratnam V. Raja Kumar (GLOBECOM, 2008)

A Multi-Band Timing Estimation and Compensation Scheme for Ultra-Wideband Communications. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (GLOBECOM, 2008)

An Efficient Maximum Likelihood CFO Estimation Technique for OFDMA Uplink Transmissions. - S. M. Sameer 001; Ratnam V. Raja Kumar (ICIIS, 2008)

Least squares based optimal switched predictors for lossless compression of images. - Anil Kumar Tiwari; Ratnam V. Raja Kumar (ICME, 2008)

A Switched Predictive Coding Method for Lossless Video Coding. - Anil Kumar Tiwari; Ratnam V. Raja Kumar (ICVGIP, 2008)

An efficient maximum likelihood carrier frequency offset estimation technique for OFDM systems. - S. M. Sameer 001; Ratnam V. Raja Kumar (ISCC, 2008)

An optimal superimposed training sequence for channel estimation in OFDM systems. - Jinesh P. Nair; Ratnam V. Raja Kumar (PIMRC, 2008)

Mathematical analysis of signal propagation in ultra-wideband transceiver system with frequency offset correction. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (PIMRC, 2008)

An Iterative Channel Estimation Method using Superimposed Training in OFDM Systems. - Jinesh P. Nair; Ratnam V. Raja Kumar (VTC Fall, 2008)

A Low Complexity Null Subcarrier Aided Frequency Offset Estimation Technique for OFDM. - S. M. Sameer 001; Ratnam V. Raja Kumar (VTC Spring, 2008)

An Efficient Frequency Offset Estimation Scheme for Multi-Band OFDM Ultra-Wideband Systems. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (VTC Spring, 2008)

A Technique for Frequency Synchronization in Multi-Band OFDM in Realistic UWB Channel. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (Circuits Syst. Signal Process., 2009)

A personalised information support system for searching portals and e-resources. - B. S. Sirisha; V. K. J. Jeevan; R. V. Raja Kumar 001; A. Goswami (Program, 2009)

An efficient technique for the integer frequency offset estimation in OFDM systems. - S. M. Sameer 001; Ratnam V. Raja Kumar (Signal Process., 2009)

A minimum entropy based switched adaptive predictor for lossless compression of images. - Anil Kumar Tiwari; Ratnam V. Raja Kumar (Signal Image Video Process., 2009)

A High Level Performance Estimation: Modeling the Effects of Parameters on Performance Properties for a Tool Assisted SDR Development. - Venkatesh Ramakrishnan; S. Mishra; Gerd Ascheid; Ratnam V. Raja Kumar (ICC, 2010)

Channel Estimation in OFDM Systems Using a Controlled Superimposition of Training Sequences. - Jinesh P. Nair; Ratnam V. Raja Kumar (Circuits Syst. Signal Process., 2010)

Optimal Superimposed Training Sequences for Channel Estimation in MIMO-OFDM Systems. - Jinesh P. Nair; Ratnam V. Raja Kumar (EURASIP J. Adv. Signal Process., 2010)

An Adaptive Timing Synchronization Scheme for Multi-Band Orthogonal Frequency Division Multiplexing Based Ultra-Wideband Communication Systems. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (Wirel. Pers. Commun., 2010)

Frequency Offset Estimation by Multi-Band Averaging Method: A New Approach for MB-OFDM Based Ultra-Wideband Communication System. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (Wirel. Pers. Commun., 2010)

Combined BER Analysis for Time-Frequency Synchronization Schemes for MB-OFDM UWB. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (VTC Spring, 2011)

Energy Efficient Timing Synchronizer for MB-OFDM UWB. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (VTC Spring, 2011)

A Wideband RF Frontend Architecture for Software Defined Radio. - Abhinav Kumar Tyagi; Ratnam V. Raja Kumar (Circuits Syst. Signal Process., 2011)

Some interesting results on compatible BER analysis issues related to multi-band timing and frequency synchronizers applicable for MB-OFDM based UWB communications. - Debarati Sen; Saswat Chakrabarti; Ratnam V. Raja Kumar (Digit. Signal Process., 2011)

Improved superimposed training-based channel estimation method for closed-loop multiple input multiple output orthogonal frequency division multiplexing systems. - Jinesh P. Nair; Ratnam V. Raja Kumar (IET Commun., 2011)

An Efficient Maximum Likelihood Carrier Frequency Offset Estimator for OFDM Using Null Subcarriers and Cyclic Prefix. - S. M. Sameer 001; Ratnam V. Raja Kumar (Wirel. Pers. Commun., 2011)

Measurement of power consumption in multimedia mobiles for various network activities in 2G/3G networks. - Pankaj Kumar Gupta; Parul Saraswat; C. S. Kumar; S. Chakrabarti; Ratnam V. Raja Kumar (IEEE ANTS, 2012)

Data Aided Iterative Channel Estimation in OFDM Systems Using a Controlled Superimposition of Training Sequences. - Jinesh P. Nair; Ratnam V. Raja Kumar (Wirel. Pers. Commun., 2013)

Bandwidth Partitioning and SINR Threshold Analysis of Fractional Frequency Reuse in OFDMA Cellular Networks for Real Time and Best Effort Traffic. - Subba Rao Boddu; Atri Mukhopadhyay; Bigi Varghese Philip; Suvra Sekhar Das; Ratnam V. Raja Kumar (Wirel. Pers. Commun., 2014)

Performance analysis of flexible reuse in cellular networks. - Subba Rao Boddu; Suvra Sekhar Das; Ratnam V. Raja Kumar (IET Commun., 2015)

A Method for Accessing Spatial Spectrum Holes for Relay Based Cognitive Cellular Networks. - Praful D. Mankar; Goutam Das 001; Sant Sharan Pathak; Ratnam V. Raja Kumar (IEEE Wirel. Commun. Lett., 2015)

Performance Analysis of the IEEE 802.16 Uplink for Best-Effort Traffic. - B. N. Bhandari; R. V. Raja Kumar 001; S. L. Maskara (Wirel. Pers. Commun., 2015)

A Distributed MIMO Radar With Joint Optimal Transmit and Receive Signal Combining. - Satya Ganesh Dontamsetti; Ratnam V. Raja Kumar (IEEE Trans. Aerosp. Electron. Syst., 2021)

A MIMO moving target detection radar with optimal transmit and receive weightage. - Satya Ganesh Dontamsetti; R. V. Raja Kumar 001 (Signal Process., 2023)