Ratnam V. Raja Kumar

Publication Activity (10 Years)

Years Active: 1984-2021
Publications (10 Years): 1

Top Topics

Estimation Algorithm

Top Venues

Wirel. Pers. Commun.

IEEE Trans. Aerosp. Electron. Syst.

Publications

Satya Ganesh Dontamsetti, Ratnam V. Raja Kumar
A Distributed MIMO Radar With Joint Optimal Transmit and Receive Signal Combining. IEEE Trans. Aerosp. Electron. Syst. 57 (1) (2021)
Jinesh P. Nair, Ratnam V. Raja Kumar
Data Aided Iterative Channel Estimation in OFDM Systems Using a Controlled Superimposition of Training Sequences. Wirel. Pers. Commun. 68 (4) (2013)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
Some interesting results on compatible BER analysis issues related to multi-band timing and frequency synchronizers applicable for MB-OFDM based UWB communications. Digit. Signal Process. 21 (2) (2011)
Jinesh P. Nair, Ratnam V. Raja Kumar
Improved superimposed training-based channel estimation method for closed-loop multiple input multiple output orthogonal frequency division multiplexing systems. IET Commun. 5 (2) (2011)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
Energy Efficient Timing Synchronizer for MB-OFDM UWB. VTC Spring (2011)
S. M. Sameer, Ratnam V. Raja Kumar
An Efficient Maximum Likelihood Carrier Frequency Offset Estimator for OFDM Using Null Subcarriers and Cyclic Prefix. Wirel. Pers. Commun. 58 (2) (2011)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
Combined BER Analysis for Time-Frequency Synchronization Schemes for MB-OFDM UWB. VTC Spring (2011)
Jinesh P. Nair, Ratnam V. Raja Kumar
Channel Estimation in OFDM Systems Using a Controlled Superimposition of Training Sequences. Circuits Syst. Signal Process. 29 (2) (2010)
Venkatesh Ramakrishnan, S. Mishra, Gerd Ascheid, Ratnam V. Raja Kumar
A High Level Performance Estimation: Modeling the Effects of Parameters on Performance Properties for a Tool Assisted SDR Development. ICC (2010)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
An Adaptive Timing Synchronization Scheme for Multi-Band Orthogonal Frequency Division Multiplexing Based Ultra-Wideband Communication Systems. Wirel. Pers. Commun. 53 (2) (2010)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
Frequency Offset Estimation by Multi-Band Averaging Method: A New Approach for MB-OFDM Based Ultra-Wideband Communication System. Wirel. Pers. Commun. 54 (4) (2010)
Jinesh P. Nair, Ratnam V. Raja Kumar
Optimal Superimposed Training Sequences for Channel Estimation in MIMO-OFDM Systems. EURASIP J. Adv. Signal Process. 2010 (2010)
S. M. Sameer, Ratnam V. Raja Kumar
An efficient technique for the integer frequency offset estimation in OFDM systems. Signal Process. 89 (2) (2009)
Anil Kumar Tiwari, Ratnam V. Raja Kumar
A minimum entropy based switched adaptive predictor for lossless compression of images. Signal Image Video Process. 3 (4) (2009)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
A Technique for Frequency Synchronization in Multi-Band OFDM in Realistic UWB Channel. Circuits Syst. Signal Process. 28 (6) (2009)
Anil Kumar Tiwari, Ratnam V. Raja Kumar
Least squares based optimal switched predictors for lossless compression of images. ICME (2008)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
An Efficient Frequency Offset Estimation Scheme for Multi-Band OFDM Ultra-Wideband Systems. VTC Spring (2008)
Jinesh P. Nair, Ratnam V. Raja Kumar
An Iterative Channel Estimation Method using Superimposed Training in OFDM Systems. VTC Fall (2008)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
Symbol timing synchronization for ultra-wideband (UWB) multi-band OFDM (MB-OFDM) systems. COMSWARE (2008)
Jinesh P. Nair, Ratnam V. Raja Kumar
An optimal superimposed training sequence for channel estimation in OFDM systems. PIMRC (2008)
Anil Kumar Tiwari, Ratnam V. Raja Kumar
A Switched Predictive Coding Method for Lossless Video Coding. ICVGIP (2008)
S. M. Sameer, Ratnam V. Raja Kumar
An efficient maximum likelihood carrier frequency offset estimation technique for OFDM systems. ISCC (2008)
S. M. Sameer, Ratnam V. Raja Kumar
An Efficient Maximum Likelihood CFO Estimation Technique for OFDMA Uplink Transmissions. ICIIS (2008)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
A Multi-Band Timing Estimation and Compensation Scheme for Ultra-Wideband Communications. GLOBECOM (2008)
S. M. Sameer, Ratnam V. Raja Kumar
An Efficient Near Blind Carrier Frequency Offset Estimation Scheme for MIMO-OFDM Systems. GLOBECOM (2008)
Debarati Sen, Saswat Chakrabarti, Ratnam V. Raja Kumar
Mathematical analysis of signal propagation in ultra-wideband transceiver system with frequency offset correction. PIMRC (2008)
S. M. Sameer, Ratnam V. Raja Kumar
A Low Complexity Null Subcarrier Aided Frequency Offset Estimation Technique for OFDM. VTC Spring (2008)
Anil Kumar Tiwari, Ratnam V. Raja Kumar
Least-Squares Based Switched Adaptive Predictors for Lossless Video Coding. ICIP (6) (2007)
Alok Kumar Pani, Ratnam V. Raja Kumar
Optimized VLIW Architecture for Non-zero IF QAM-Modem Implementations. VLSI Design (2006)
Ratnam V. Raja Kumar
Performance analysis of a novel matched filter detector with reduced out-of-band response for narrowband signals. IEEE Trans. Signal Process. 54 (7) (2006)
Anil Kumar Tiwari, Ratnam V. Raja Kumar
A switched adaptive predictor for lossless compression of high resolution images. ICC (2005)
Anil Kumar Tiwari, Ratnam V. Raja Kumar
Optimal slope bin classification in gradient adjusted predictor for lossless compression of medical images. ICIP (2) (2005)
Manju Sarvagya, Ratnam V. Raja Kumar
Performance analysis of the UMTS system for Web traffic over dedicated channels. ITRE (2005)
K. Sreekanth Reddy, Ratnam V. Raja Kumar
Recursive estimation of wavelet based time varying AR models of speech. ICASSP (6) (2003)
Ratnam V. Raja Kumar
A near-optimum detector with reduced out-of band response for narrowband signals. IEEE Trans. Signal Process. 48 (10) (2000)
M. R. Ramapriya, S. Beotra, Maharaj Mukherjee, Ratnam V. Raja Kumar, P. Dhar
An end-connected dual bus topology for metropolitan area networks. Comput. Networks 31 (5) (1999)
Ratnam V. Raja Kumar, C. B. Rama Rao
Mean convergence behavioural analysis of IIR adaptive filters. Signal Process. 63 (3) (1997)
Ratnam V. Raja Kumar, Ranendra N. Pal
Tracking of bandpass signals using center-frequency adaptive filters. IEEE Trans. Acoust. Speech Signal Process. 38 (10) (1990)
Ratnam V. Raja Kumar, Ranendra N. Pal
A gradient algorithm for center-frequency adaptive recursive bandpass filters. Proc. IEEE 73 (2) (1985)
Ratnam V. Raja Kumar, Ranendra N. Pal
Separation of sinusoids using the constrained adaptive line enhancer. ICASSP (1984)