Contact Information

E-mail : pkumar[*AT]iitp.ac.in
Personal Webpage :

Phone : +91-612-2552048

Fax :  +91-612- 2277383

Research Interest

Physical Layer in Wireless Communications, Communication Systems, Signal Processing for Communication.

Teaching

EE 102: Basic Electronics laboratory

EE 200: Semiconductor Devices & Circuits

EE 711: Wireless Communications

Recent Papers
 

1.       Preetam Kumar and Saswat Chakrabarti, “An Analytical Model of Iterative Interference Cancellation Receiver for Orthogonal/Orthogonal (O/O) Overloaded DS-CDMA System,” Springer’s International Journal of Wireless Information Networks,  February 2010

2.   Preetam Kumar and Saswat Chakrabarti, “Overloading Scheme for Cellular CDMA using Quasi-Orthogonal Sequence,” International Journal of Signal Processing,  January 2010

3.   Preetam Kumar, ”BER Performance of Scrambled OCDMA/OCDMA Overloading Schemes for Cellular CDMA on Rayleigh Fading Channel,” IEEE ISSPA2010 International Conference on Information Sciences, Signal Processing and their Applications, Kuala Lumpur,  May 2010 (Accepted)

4.   Mithun Mukherjee and Preetam Kumar, “Soft Decision Subcarrier PIC scheme for CI/MC-CDMA system,” IEEE Wireless Telecommunication Symposium, Florida, USA, April 2010 (Accepted)

5.  Sujit Jos, Preetam Kumar and Saswat Chakrabarti, ” An Accurate Analytical Model for Overloaded DS-CDMA under Imperfect Synchronization,” IEEE Vehicular Technology Conference-Spring (VTC-Spring), Taiwan, May  2010 (Accepted)

Selected Publications

 1.   Preetam Kumar and Saswat Chakrabarti, “OCDMA/OCDMA Overloading Scheme for Cellular DS-CDMA system using Orthogonal Gold Codes and Complex Scrambling,” International Journal of Communications, Network and System Sciences (IJCNS, SRP, USA), Vol. 1,  No. 3,  pp. 207-214, August 2008

2.    Preetam Kumar and Saswat Chakrabarti, ”An Improved OCDMA/OCDMA Overloading Scheme for Cellular DS-CDMA,” Springer-Verlag LNCS,  Vol. 5174, pp. 25-36, August 2008

3.   Preetam Kumar, M. Ramesh, and Saswat Chakrabarti, ”Overloading Cellular DS-CDMA: A Bandwidth Efficient Scheme for Capacity Enhancement,” Springer-Verlag LNCS, Vol. 4904, pp. 515-527, January 2008

4.   Sujit Jos, Preetam Kumar and Saswat Chakrabarti, “Performance Evaluation of Quadratic-Residue and Orthogonal Gold code as spreading sequences for Quasi-synchronous CDMA Communication”,  Springer-Verlag Berlin  LNCS, Vol. 5408, pp. 395-399, , January 2009

5.  Preetam Kumar and Saswat Chakrabarti, ”Overloading Scheme for Celluar DS-CDMA  using Quasi-Orthogonal Sequences,” IEEE Sarnoff Symposium 2009, Princeton, NJ, USA, April 2009

6.   Preetam Kumar and Saswat Chakrabarti, ”Overloading Performance of Cellular DS-CDMA System with Imperfect Power Control,”  IEEE ICIIC, IIT Kharagpur, December 2008

7.    Sujit Jos, Preetam Kumar and Saswat Chakrabarti, “Performance Comparison of Orthogonal and Quasi-orthogonal Codes in Quasi-Synchronous CDMA Communication”, ACCESSNETS 2008, LasVegas, USA, October 2008

8.   Preetam Kumar and Saswat Chakrabarti, ”Overloading Performance of OCDMA/OCDMA scheme for Cellular DS-CDMA system on a Rayleigh Fading Channel,”  IEEE ISSSTA, Italy, August 2008

9.   Sujit Jos, Preetam Kumar and Saswat Chakrabarti, ”A Code Selection Criterion Based on Autocorrelation Properties for Quasi-Synchronous CDMA Communication,” IEEE ISSSTA, Italy, August 2008

10.   Preetam Kumar and Saswat Chakrabarti, ”Performance Evaluation of Orthogonal and Quasi-Orthogonal Codes for Cellular CDMA in Quasi-Synchronous Environment,” IEEE 9^th International Workshop on Signal Processing Advances in Wireless Communications  (SPAWC 2008), Brazil, July 2008

11.  Preetam Kumar and Saswat Chakrabarti, ” A New Overloading Scheme for Cellular DS-CDMA using Orthogonal Gold Codes,” IEEE Vehicular Technology Conference-Spring (VTC-Spring), Singapore, May  2008

12.   Preetam Kumar and Saswat Chakrabarti, ”BER Performance Evaluation of Overloaded DS-CDMA System with Timing Synchronization Error,” IEEE Sarnoff Symposium 2008, Princeton, NJ, USA, April 2008

13. Preetam Kumar and Saswat Chakrabarti, “BER Analysis of Hard Decision Interference Cancellation Receiver for Overloaded DS-CDMA System,” IEEE Sarnoff Symposium 2008, Princeton, NJ, USA, April 2008

14.  Preetam Kumar and Saswat Chakrabarti, ”BER Performance of a New Overloading Scheme for Cellular DS-CDMA on Rayleigh Fading Channel,” IEEE 12th Annual International Symposium of Consumer Electronics 2008 (ISCE 2008), Portugal, April 2008

15. Preetam Kumar and Saswat Chakrabarti, ”Performance Analysis of Iterative Multistage Detection Scheme for Overloaded DS-CDMA System,”  National Conference on Communications (NCC), IIT Mumbai, Feb.’ 2008

16. Sujit Jos, Preetam Kumar and Saswat Chakrabarti, ” Error Free Despreading of Orthogonal Codes in Quasi-synchronous DS-CDMA Communication,” IEEE International Conference on Advanced Communication Technology (ICACT), Phoenix Park, South Korea , Feb.’ 2008

17. Preetam Kumar and Saswat Chakrabarti, ” Performance Evaluation of a New Overloading Scheme for Cellular DS-CDMA with Iterative Multistage Interference Cancellation Receiver,” IEEE COMSWARE, Bangalore, Jan.’ 2008

18. Preetam Kumar, M Ramesh and Saswat Chakrabarti, “Performance Evaluation of Orthogonal/scrambled-Orthogonal overloaded DS-CDMA system,” IEEE International Conference on Wireless and Optical communication Networks (WOCN 2007), Singapore, July 2007

19.  Preetam Kumar and Saswat Chakrabarti,”A New Overloading Scheme for DS- CDMA System,” National Conference on Communication (NCC), Jan. 2007, IIT Kanpur.

Last updated : 16th April, 2010