O.P. Sahu

Designation:    Professor
Department:    Electronics & Communication Engg
Qualification:    PhD (2005, NIT Kurukshetra)
Address:    BC-2, NIT CAMPUS, KURUKSHETRA HARYANA, INDIA BHARAT 136119
Email:    ops_nitk@yahoo.co.in
Phone No:    01744233443, 8901288989, 0174423807
Area of Interest:    

Digital Signal Processing, Digital Communication, Signals and Systems, Information and Coding Theory

Experience :
Teaching : 25 years
R & D Organization / Industry

Others:   

Research Publications:

Journals:LIST OF PUBLICATIONS

(a) In Journals:
O.P. Sahu and A.K. Gupta, “Measurement of Distance and Medium Velocity Using Frequency Modulated Sound/Ultrasound,” IEEE Trans. On Instrumentation &Measurement, Vol. 57, NO. 4, pp. 838 – 842, April 2008.
S. Santosh, O.P. Sahu, and Monika Aggarwal, “An Overview of Different Wideband Direction of Arrival (DOA) Estimation Methods,” WSEAS Trans. On Signal Processing, issue 1, Vol. 5, pp. 11 – 22, Jan 2009.
O.P. Sahu, M.K. Soni, and I.M. Talwar, “Marquardt optimization method to design two-channel quadrature mirror filter banks,” Elsevier Journal Digital Signal Processing,  Vol. 16, pp. 870 – 879, Nov – Dec 2006.
O.P. Sahu, M.K. Soni, and I.M. Talwar, “Designing quadrature mirror filter banks using steepest descent method,” Jorunal of Circuits Systems and Computers, Vol. 15, No. 2, pp. 29-42,  Feb 2006.
O.P. Sahu, M.K. Soni, and I.M. Talwar, “Time Domain Analysis of Two-Channel Quadrature Mirror Filter Bank” IETE Journal of Research Vol. 51, no. 6, pp. 469 – 475, Nov – Dec. 2005.
O.P. Sahu, M.K. Soni, and I.M. Talwar, “On the design of two-channel quadrature mirror filter banks,”  Paritantra, A Journal of System Science and Engineering, Vol. 11, No.1, pp. 16 – 23, April 2005.
O.P. Sahu, M.K. Soni, and I.M. Talwar, “An algorithm to design linear phase FIR filter banks,” Paritantra, A Journal of Systems Science and Engineering, Systems Society of India, Vol.9, No.1, pp. 36 – 42, 2004.
O.P. Sahu, M.K. Soni, and I.M. Talwar, “Designing two-channel quadrature mirror filter banks using conjugate gradient method,” e-journal, EE publication, ee-pub.com, July 2004.
Sanjay R. and O.P. Sahu, “Metrics to define Probability of Interception of Conventional, Frequency-hopping, Spread Spectrum Radars”, IETE Journal of Research Vol. 55, issue 6 pp. 304- 308, Nov – Dec, 2009.
S.K. Agrawal and O.P. Sahu, “Digital Receiver Architectures  for OFDMA Systems Using Polyphase Filter Banks,” International Journal of Business & Engineering Research, Vol. 2, pp. 67 – 76, Oct. 2009.
Ajay Goel, O.P.Sahu, Rupesh Gupta, and Sheifali Gupta,An Improved digital Watermarking Technique Using MDCT” Indian Electrical and Electronics Manufacturers’ Association  (IEEMA) Journal, Bombay, India in the section of ‘Techno- Bytes’ , Vol.1. No.8, April-2010, pp.94-97. ISSN 09702946
Ajay Goel, O.P.Sahu, Rupesh Gupta, and Sheifali Gupta “Performance Evaluation of New-Fangled Digital Watermarking Techniques”  Global Journal of Computer Science and Technology (GJCST), USA, Vol. 10, Issue 2,Ver (1.0) , April 05, 2010, pp.43-46. ISSN 0975-4350
Ajay Goel, O.P.Sahu, Rupesh Gupta, and Sheifali Gupta “Improved Digital watermarking Techniques and Data Embedding In Multimedia”International Journal on Computer Science and Engineering, (IJCSE) Singapore, Vol.2 , Issue2, March 2010 , pp.164-168. ISSN 0975–3397
Ajay Goel, O.P.Sahu, Rupesh Gupta, and Sheifali Gupta “A New Cryptography Based Watermarking Technique for Information Security” International Journal of Electronics Engineering(IJEE) ,Delhi,India Volume 2 Number 1, June 2010, pp.1-3. ISSN 0973-7383.
Ajay Goel, O.P.Sahu, Rupesh Gupta, and Sheifali Gupta “An Improved Scheme For Digital Watermarking Based On Discrete Cosine Transformations” International Journal on Global Journal Of Science Frontier Research, (GJSFR) ,USA, Vol. 10, Issue 1,Ver 1.0, April 2010, pp.15-18. ISSN 0975-5896.
Ajay Goel, O.P.Sahu, Rupesh Gupta, and Sheifali Gupta “Design and Implementation of A GUI Based on Neural Networks for the Currency Verification”  International Journal of Computer and Network Security(IJCNS),Austria, Vienna, Vol. 2, No.4, April 2010, pp.27-29. ISSN Print: 2076-2739 ISSN Online: 2076-9199
Ajay Goel, O.P. Sahu, Punit Soni , Aman soni”A Copy Attack On Robust Digital Watermarking In Multi Domain For The Stego Images”International Journal of Research and Reviews in Computer Science ,(IJRRCS), Pakistan, Vol. 1, No. 2 ,June 2010, pp.47-49. ISSN: 2079-2557
Punit Soni , Aman Soni Ajay Goel ,O.P. Sahu,”A Criterion of Still Image Quality Assessment in Spatial Domain Using Structural & Boundary Correlation Based Approach “International Journal of Multidisciplinary Research and Advance in Engineering ,(IJMRAE), Pune, India, Vol. 2, No. 3, June 2010. ISSN: 0975-7074
Varun k . Saxena , Ajay Goel, Varun Gupta, O.P. Sahu ,” Importance of Multicast Virtual Private Networks based on RFC 2547 “Published in International Journal of Computer Applications (IJCA), New York, USA, Volume 2,Number 8, June 2010, pp.37-40. ISSN: 0975-8887
Sheifali Gupta, O.P.Sahu , Ajay Goel and Rupesh Gupta A New Optimized Approach To Face Recognition Using Eigenfaces”, Global Journal of Computer Science and Technology (GJCST) ,USA, Vol 10 ,Issue 1, Ver(1.0), April 2010 ,pp.15-17. ISSN 0975-4350
Sheifali Gupta, O.P.Sahu, Ajay Goel , and Rupesh Gupta, “A Bespoke Approach For Face-Recognition Using PCA” International Journal on Computer Science and Engineering (IJCSE) Singapore ,Vol. 2, Issue 2, March 2010 pp.155-158. ISSN 0975–3397
Sheifali Gupta, O.P.Sahu , Ajay Goel and Rupesh Gupta, “ Analysis Of Subspace LDA Based For Face Recognition” International Journal on Global Journal of Science Frontier Research, (GJSFR) ,USA, Vol. 10, Issue 1,Ver 1.0, April 2010. pp. 2-6. ISSN 0975-5896.
Sheifali Gupta , O.P.Sahu, Ajay Goel , Rupesh Gupta, “Face Recognigation Using Subspace LDA” Published in International Journal of Computer and Network Security (IJCNS),Austria, Vienna, Vol. 2, issue 5, May 2010. pp.16-18. ISSN Print: 2076-2739 ISSN Online: 2076-9199
O.P. Sahu and Sanjay Kumar, “A New Channel Equalizer Using Adaptive Neuro Fuzzy Inference System,” IETE Journal of Research, May-June 2011.
S. Dhull, S. Arya and O.P. Sahu, “Comparison of Time Delay Estimation Techniques in Acoustic Environment” International Journal of Computer Applications, Vol. 8, No. 9, Oct. 2010, pp. 29 – 31. ISSN 0975 – 8887.
S. Dhull, S. Arya and O.P. Sahu, “Performance Evaluation of Adaptive Filter Structures for Acoustic Echo Cancellation” International Journal of Engineering (IJE) Vol. 5, issue 2, pp. 208 – 215, 2011.
S. Dhull, S. Arya and O.P. Sahu, “Performance comparison of Adaptive Algorithms for Adaptive line Enhancer” International Journal of Computer Science Issues, Vol. 8, issue 3, No. 2, pp. 553 – 558, May 2011.
S. Dhull, S. Arya and O.P. Sahu, “Performance Variation of LMS And Its Different Variants,” International Journal of Computer Science and Security, (IJCSS), Vol. 4, issue 5, pp. 491 – 496,
Tarun Dubey and O. P. Sahu, “Broadcasting with Controlled Redundancy and Improved Localization in Wireless Sensor Networks,” Journal of Electronic Science and Technology, Vol.11, No.4. (2013)
Tarun Dubey and O.P. Sahu, “Self Localized Packet Forwarding in Wireless Sensor Networks,” Journal of Information Processing Systems, Vol.9, No.3, pp.477-488.(2013)
Tarun Dubey and O.P. Sahu, “A Novel Algorithm for Self Localized Packet Forwarding in Wireless Sensor Networks,” International Journal of Advanced Science and Technology, Vol. 56, pp.27-35.(2013)
Tarun Dubey and O. P. Sahu, “Directional Antenna Assisted Scheme to Reduce Localization Error in Wireless Sensor Networks,” International Journal of Information & Network Security, Vol.2, No.2, pp. 183-189. (2013)
Tarun Dubey, O. P. Sahu, “Omni Directional Antenna Assisted Scheme to Minimize Redundancy in Wireless Sensor Networks,” International Journal of Computer Network and Information Security, Vol. 4, pp. 57-62. (2013)
O. P. Sahu and Tarun Dubey, “A Simple Scheme for Location and Distance Estimation of Wireless Sensor Nodes in Outdoor Environments,” International Journal on Smart Sensing and Intelligent Systems, Vol. 6, No. 1. pp. 368-382. (2013)
Tarun Dubey and O. P. Sahu, “Performance Evaluation of Gossip for Minimizing Redundancy in Wireless Sensor Networks,” International Journal of Computer Science: Theory, Technology and Applications, Vol. 2, No. 1, pp.1-7. (2013)
Tarun Dubey and O. P. Sahu, “Survey on Wireless Sensor Networks for Reliable Life Services and Other Advanced Applications,” Indonesian Journal of Electrical Engineering and Informatics.Vol.1,No.4,pp.133-139.(2013)
O. P. Sahu and Tarun Dubey, “A Fault Tolerant Topology for Reliable Data Forwarding in Localized Wireless Sensor Network” Journal of Instrument Society of India, Vol. 41, No. 4, pp.245-247.(2011)
O. P. Sahu and Tarun Dubey, “Localization of Wireless Sensor Mobile Network,” Invertis Journal of Science and Technology, Vol. 1, No. 3, pp.158-166. (2008)
O. P. Sahu and Tarun Dubey, “A Practical Solution for Location Estimation in Manually Deployed Wireless Sensor Networks” Wireless Sensor Network, Vol.3, pp. 117-120. (2011)
Nikhil Marriwala, O. P. Sahu & Anil Vohra, “8-QAM Software Defined Radio Based Approach for Channel Encoding and Decoding Using Forward Error Correction”, Wireless Personal Communication, Springer, DOI 10.1007/s11277-013-1191-z, ISSN: 0929-6212 (Print) 1572-834X (Online) Vol. 72, Issue 4, Oct. 2013, pp. 2957-2969. The journal is SCI listed and has impact factor of 0.979.
Nikhil Marriwala, O. P. Sahu & Anil Vohra, “Design of a hybrid reconfigurable Software Defined Radio transceiver based on frequency shift keying using multiple encoding schemes”, Egyptian Informatics Journal, Elsevier, Vol. 17, Issue 1, pp. 89-98, March 2016. The journal has a Source Normalized Impact per Paper (SNIP): 2015: 1.491, SCImago Journal Rank (SJR): 0.478.
Nikhil Marriwala, O. P. Sahu & Anil Vohra, “LabVIEW Based Design Implementation of M-PSK Transceiver Using Multiple Forward Error Correction Coding Technique for Software Defined Radio Applications”, Journal of Electrical and Electronic Engineering, doi: 10.11648/j.jeee.20140204.1, ISSN Print: 2329-1613, ISSN Online: 2329-1605, Vol. 2, No. 4, pp. 55-63, Aug., 2014.
Nikhil Marriwala, O. P. Sahu & Anil Vohra, “Performance Analysis of Multiple FEC Channel Coding Algorithms for Software Defined Radio Using Quadrature Amplitude Modulation”, International Journal of Applied Metaheuristic Computing, ISSN: 1947-8283 , eISSN: 1947-8291Vol. 7, Issue 2 , pp. 1-15, April-June-2016.
(B) In Conferences

National Conferences
O.P. Sahu, M.K. Soni, and I.M. Talwar, “On multi-resolution analysis, wavelet and filter banks,” Proceedings National Conf. On Trends in Industrial Electronics, Transducers, Controls and Communication, pp. 243–249, Nov. 14–15, 2000, TIET Patiala, Punjab, India.
O.P. Sahu, I.M. Talwar, and M.K. Soni, “Quadrature mirror filter banks: An Overview,” Proceedings National Conf. On Computer and Devices for Communications, pp. 43, Feb. 21–23, 2001, REC Jallundhar, Punjab India.
O.P. Sahu, I.M. Talwar, and M.K. Soni, “On perfect reconstruction filter banks,” Proceedings All India Seminar On Recent Trends in Computer Communication Networks, pp. 39 – 48, CCN 2001, IIT Roorkee, India.
Sumeet Gupta and O. P. Sahu, “Direct sequence spread spectrum- Review and prototype development,” 22nd National convention of Electronics and Telecommunication Engineers and National Seminar on Advances in Electronics & Telecommunication Technologies Vision – 2020, 4-5 Aug 2006, JAIPUR.
O.P. Sahu, A.K. Gupta, “Conitnuous wave frequency modulation  technique for Fluid velocity/Distance measurement”, presented at National System Conference-95, Dec 14-16 1995, PSG College of Technology Coimbatore.
H.J. Pandya, Tarun Dubey and O.P. Sahu, “Indium tin oxide thin film sensors array for detection of VOCs,” National Seminar on Adcances in Computer Science and Technology, April 15, 2007, Shri Ram Murti Smarak College of Engineering and Technology, Bareilly, India.
O.P. Sahu and Saurabh Gupta, “PAPR Reduction in OFDM Using a combination of PTS and Clipping Techniques”, Proc. Of National Conf. on Network Security and Management, NCNSM-2007, pp.105 – 108 Oct. 5 – 6 2007, Department of Computer Science University of Lucknow.
Sandeep Santosh, O.P. Sahu, and Monika Aggarwal, “Different Wideband Direction of Arrival (DOA) Estimation Methods: An Overview”. Proc. Of 4th National Conf. on Machine Intelligence, HEC Jagadhari India, pp. 42 – 48 , Aug. 22 – 23, 2008.
S.K. Agrawal, O.P. Sahu, “Multirate Filter Bank Based Adaptive Interference Canceller for Co-Existence Problem of TDMA/CDMA Systems, All India Seminar on Emerging Trends in Electronics and Telecommunication: Vision 2020, JIET Universe Jodhpur, India.  pp. 159 – 163, March 7 – 8, 2009.
Nikhil Marriwala, O. P. Sahu & Anil Vohra, “Performance Analysis of channel coding algorithms for software defined radio using 64-QAM”, 2nd National Conference on Converging Technologies Beyond -2020, ISSN-2394-2339, pp. 203-206, Nov. 28-29,2014.
International Conferences
O.P. Sahu, I.M. Talwar, and M.K. Soni, “On the design of linear phase FIR quadrature mirror filter banks,” Proceedings International Conf. On Emerging Technology, Dec. 19–21, ICET-2003, KITS, Bhubaneswar, India.
S.K. Agrawal, O.P. Sahu, and Manish Kumar, “Multirate Digital Filters, Filter Banks, Polyphase Networks, and Applications” Proc. Of Int. Conf. RASIET-07, pp. 326 – 334, Dec. 22 – 23, 2007, Institute of Engineering and Technology Alwar, India.
Sandeep Santosh, O.P. Sahu, and Monika Aggarwal, “A Study of Different Directiona of Arrival (DOA) Estimation Methods in Array Signal Processing,” 2nd International Conference on Advanced Computing and Communication Technologies, Nov. 03-04, 2007, APIIT, Panipat INDIA.
S Santosh, O.P. Sahu, and M. Aggarwal, “Different Direction of Arrival Estimation Methods: An Overciew”, Proc. 3rd WSEAS Int. Conf. Ckts, Syst. Signal and Telecomm. Pp. 159 – 167, CISST 2009.
K.S. Jamwal and O.P. Sahu, “E-Waste Management for Sustainable Development of Environment”, Int. Conf. on Changing Environmental Trends And Sustainable Development, GJU Hisar, pp. 355 – 359, Feb. 9 – 11, 2009.
S.K. Agrawal and O.P. Sahu, “Adaptive Interference Canceller for C-existence Problem of TDMA/CDMA Systems, Implemented with a Multirate Filter Bank”, Int. Conf on Emerging & Futuristic System and Technology, ICE-FST-09, pp. 160 – 166, April 09 – 11, 2009,  Institute of Engineering and Technology Alwar, India.
O. P. Sahu and Tarun Dubey, “A New Approach for Self Localization of Wireless Sensor Network” Indian Journal of Science and Technology, Vol. 2, No. 11, pp.1-4. (2009)
G. Verma and O.P. Sahu, “Removal of sensing-throughput tradeoff barrier in cognitive radio networks,” Wireless Personal Communications (SCI indexed)doi: 10.1007/s11277-016-3693-y, pp. 1-14, Sept. 2016.
G. Verma and O.P. Sahu, “Interference aware optimisation of throughput in cognitive radio system,” Defence Science Journal(SCI indexed), vol. 65, no. 4, pp. 312-318, July 2015.
G. Verma and O.P. Sahu, “Opportunistic selection of threshold in cognitive radio networks,” Wireless Personal Communications (SCI indexed)doi: 10.1007/s11277-016-3573-5, pp. 1-16, Aug. 2016.
G. Verma and O.P. Sahu, “Intelligent selection of threshold in cognitive radio system,” TelecommunicationSystems (SCI Indexed)vol. 63, issue 4, pp. 547-556, Jan. 2016.
G. Verma and O.P. Sahu, “Interference aware sensing scheme in cognitive radio system,” Wireless Personal Communications (SCI indexed)doi:10.1007/s11277-016-3688-8, pp 1-21, Sept. 2016.
G. Verma and O.P. Sahu, “On the opportunistic use of location of licensed users in improving the throughput of cognitive radio,” TelecommunicationSystems (SCI Indexed)doi: 10.1007/s11235-017-0304-5, pp. 1-9, Feb. 2017.
G. Verma and O.P. Sahu, “Improved spectrum sharing (ISS) scheme for cognitive radio networks”, Wireless Personal Communications, pp. 1-20, May 2017 (SCI Indexed).
G. Verma and O.P. Sahu, “Throughput maximization of Cognitive Radio under the Optimization of Sensing Duration,” Wireless Personal Communications,pp. 1-19, May 2017 (SCI indexed).
Anil Garg and O.P. Sahu, “Cuckoo search based optimal mask generation for noise suppression and enhancement of speech signal” Journal of King Saud University- Computer and Information Sciences, pp. 269 – 277, Vol 27 Issue 3, ISSN 1319-1578, July 2015.
S. Sharma, O. P. Sahu, “An Improved Iterative Water Filling Algorithm in Multiuser DSL Environment,” Wireless Personnel Communication, Springer, Volume 94, Issue 3, pp. 675–684, June 2017.(SCIE- Journal)
S. Sharma, O. P. Sahu, “A Dynamic Spectrum Management (DSM) Algorithm in VDSL systems”, Turkish journal of Electrical and Computer science,Volume 24, pp. 3483–3491, June 2016. (SCIE-Journal)
S. Sharma, O. P. Sahu, “A Modified Low Complexity Based Distributed Iterative Water-Filling (IWF) Spectrum Management Algorithm”, Wireless Personnel Communication, Springer, Volume 82, Issue 3,pp. 1239–1247, January 2015. (SCIE-Journal)
S. Sharma, O. P. Sahu, “A Low Complexity Based Spectrum Management Algorithm for ‘Near-Far’ Problem in VDSL Environment”, Journal of King Saud University-Computer and Information Sciences, Elsevier, Volume 27, Issue 4, pp. 430–436, October 2015.(Scopus Indexed)
S. Sharma, O. P. Sahu, “An improved distributed iterative water-filling spectrum management algorithm for Near-Far problem in VDSL systems”, Advances in Computing, Communications and Informatics (ICACCI), IEEE, 24–27 September, pp. 2597–2601, 2014.
S. K. Agrawal and O. P. Sahu, “Artificial Bee Colony Algorithm to Design Two-Channel Quadrature Mirror Filter Bank” Elsevier – Swarm and Evolutionary Computation (Published online on 13.12.2014). DOI:10.1016/j.swevo.2014.12.001
S. K. Agrawal and O. P. Sahu, “Design of Two-Channel Quadrature Mirror Filter Bank Using Broyden-Fletcher-Goldfarb-Shanno (BFGS) Optimization Method” JIPS, Korea. (Accepted for publication).
S. K. Agrawal and O. P. Sahu, “An Efficient Algorithm to Design Nearly Perfect-Reconstruction Two-Channel Quadrature Mirror Filter Banks” Iranian Journal of Electrical & Electronics Engineering, vol. 10, no. 4, Dec. 2014, pp. 276-282.
S. K. Agrawal and O. P. Sahu, “A Computationally Efficient Technique to Design Two-Channel Quadrature Mirror Filter Banks” IJST, vol. 7, no. 3, 2014, pp. 147-157.
S. K. Agrawal and O. P. Sahu, “An Improved Approach for the Design of Two-Channel Quadrature Mirror Filter Banks Using Unconstrained Optimization” IUP Journal of Electrical & Electronics Engineering, vol. VII, no. 2, April 2014, pp. 48-61.
S. K. Agrawal and O. P. Sahu, “Design of Alias-Free Linear Phase Quadrature Mirror Filter Banks Using Eigenvalue-Eigenvector Approach”, Electrical and Electronics Engineering: An International Journal, vol. 3, no. 2, May 2014, pp. 111-120.
S. K. Agrawal and O. P. Sahu,“Two-Channel Quadrature Mirror Filter Bank: An Overview,” ISRN Signal Processing (Hindawi), vol. 2013, Article ID 815619, 10 pages, 2013. doi:10.1155/2013/815619.
S. K. Agrawal and O. P. Sahu, “Two-Channel Quadrature Mirror Filter Bank Design Using FIR Polyphase Component,” ACEEE Int. Journal on Signal & Image Processing, vol. 4, no.1, Jan. 2013, pp. 24-28.
S. K. Agrawal and O. P. Sahu, “Polyphase Structure Based Eigen Design of Two-Channel Quadrature Mirror Filter Bank” I. J. Image, Graphics and Signal Processing. vol. 10, Sept. 2014, pp. 29-35. DOI: 10.5815/ijigsp.2014.10.04.
Nikhil Marriwala, O. P. Sahu & Anil Vohra,  “Novel Design of a Low Cost Flexible Transceiver Based on Multistate Digitally Modulated Signals Using Wi-Fi Protocol for Software Defined Radio” Wireless Personal Communication, Springer, DOI 10.1007/s11277-015-3052-4, ISSN 0929-6212, (Print) 1572-834X (Online) Vol. 84, Issue 4, pp. 1265–1284, April 2016. The journal is SCI listed and has impact factor of 0.701.

 

Awards:

Life member of (i) IETE (ii) IE (iii) SSI
Got national scholarshi

Ph.D Supervised:

Completed 02
In progress 06

M.Tech Dissertations:

Completed Approximately 40
In progress 01

Contribution:

Worked as a Warden for about 05 years and an HOD for 02 years. Developed several experiments in LABS and revised BTech and MTech scheme and syllabus