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Interference Mitigation in Internet of (every)Things

Overview: Wireless communication is the fastest growing sector of the communication industry. Over the last decade, small portion of unlicensed spectrum has encouraged innovations in wireless networking including wireless LAN, Mesh, blue tooth, and so on. These wireless device has become popular in recent years and has received wide deployments.The known fact is that the devices operating in same band create interference to others and hurt overall system performance. Therefore we need to have some adaptive algorithms through which wireless device can adapt their transmission parameters according to their operating environment. One solution is, for a given system in which K users operate in a signal space dimension N (aka processing gain in CDMA system), assign orthogonal signatures to the users when the number of users K is less than or equal to N. And assign precoders such that they satisfy the GWBE when the number of users K > N.

Motivation: Communication channel refers to the medium used to transfer information from a transmitter to a receiver. Communication channels can be either wire-line or wireless. Wire-line channels physically connect the transmitter to the receiver through wire, making them more private and less prone to interference. In wireless communications, electromagnetic waves or RF carry a signal over the communication path, without using the wires. The wireless communication channels might consist of the wave guide, the atmosphere, the free space or even the sea, through which the radio waves propagate subjected to reflection, refraction, diffraction and/or absorption. Wireless channels are thus, more public, with the transmitter radiating a signal that can be received by any antenna in close proximity. Hence interference and noise are much more prevalent in wireless communication. Moreover, when a signal passes through the transmission medium, it gets scattered so that the signal will vary randomly or fade, due to the effect of propagation environment. Wireless communication is the fastest growing sector of communication industry. Over the last decade, small portion of unlicensed spectrum has encouraged innovations in wireless networking including wireless LAN, Mesh, blue tooth, and so on. These wireless device has become popular in recent years and has received wide deployments.The known fact is that the devices operating in same band create interference to others and hurt overall system performance. Therefore we need to have some adaptive algorithms through which wireless device can adapt their transmission parameters according to their operating environment. One solution is, for a given system in which K users operate in a signal space dimension N (aka processing gain in CDMA system), assign orthogonal precoders/signatures to the users when K is less than or equal to N. And assign precoders such that they satisfy the Generalized Welch Bound Equality (GWBE). In order to avoid abrupt change in transmitter due to which the receiver cannot change its receiver filter so fast, the incremental or gradient descent strategies towards the best solution are few example solutions. 


Personnel:
  • D. B. Rawat
  • S. Shetty
  • G. Yan

Publications 
  • Danda B. Rawat, Sachin Shetty and C. Xin, "Stackelberg Game based Dynamic Spectrum Access in Heterogeneous Wireless Systems," IEEE Systems Journal, 2014. (2013 Impact Factor = 1.746)
  • Gongjun Yan, Danda B. Rawat and Bhed Bahadur Bista, "Mining Vehicular Data in VANET," in Proceedings of IEEE TENCON 2013, Xi,an China, October 22 - 25, 2013.
  • D. B. Rawat, S. Shetty, and K. Raza, “Geolocation-aware Resource Management in Cloud Computing Based Cognitive Radio Networks,” International Journal of Cloud Computing, a Special Issue on Information Assurance and System Security in Cloud Computing, 2013 (in press).
  • Danda B. Rawat, Sachin Shetty and Khurram Raza, "Secure Radio Resource Management in Cloud Computing Based Cognitive Radio Networks" In proceedings of The 4th International Workshop on Security in Cloud Computing, Pittsburgh, PA, USA, Sept. 12, 2012!(CloudSec 2012), September 12, 2012, Pittsburgh, PA, USA.
  • Gongjun Yan, Danda B. Rawat, Bhed B. Bista. "Towards Secure Vehicular Clouds", The Sixth International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2012), July 4th-July 6th, 2012, Italy.
  • Danda B. Rawat and D. Popescu, "Precoder Adaptation and Power Control for Cognitive Radios in Dynamic Spectrum Access Environments," IET Communications, Volume 6, Issue 8, pp. 836–844, May 2012.
  • Gongjun Yan, Danda B. Rawat and Bhed B. Bista, "Provisioning Vehicular Ad hoc Networks with Quality of Service," The International Journal of Space-Based and Situated Computing (IJSSC), Vol.2, No.2 > pp.104 - 111, 2012.
  • Danda B. Rawat, D. C. Popescu, Gongjun Yan, and S. Olariu. Enhancing VANET Performance by Joint Adaptation of Transmission Power and Contention Window Size, IEEE Transactions on Parallel and Distributed Systems, vol. 22, no. 9, pp. 1528-1535, Jan. 2011, doi:10.1109/TPDS.2011.41
  • Gongjun Yan, W. Yang, Danda B. Rawat, and S. Olariu. SmartParking: A Secure and Intelligent Parking System, IEEE Intelligent Transportation Systems Magazine, Vol. 3, Issue 1, pp. 18 - 30, April 2011.
  • Danda B. Rawat, Bhed B. Bista, Gongjun Yan and M. C. Weigle, "Securing Vehicular Ad-Hoc Networks Against Malicious Drivers: A Probabilistic Approach," In Proceedings of the The Fifth International Conference on Complex, Intelligent, and Software Intensive Systems (CISIS-2011), June 30th-July 2nd, 2011, Seoul, Korea.
  • Danda B. Rawat, D. Treeumnuk, and D. C. Popescu. Predictive Vector Quantization for Wireless Transmitter Adaptation With Limited Feedback. In Proceedings of The 36th IEEE International Conference on Acoustics, Speech and Signal Processing (IEEE ICASSP 2011), May 22 - 27, 2011, Czech Republic.
  • D. C. Popescu, Danda B. Rawat, O. Popescu, and M. Saquib. Game Theoretic Approach To Joint Transmitter Adaptation and Power Control in Wireless Systems. IEEE Transactions on Systems, Man, and Cybernetics - Part B, vol. 40, no. 3, pp. 675 - 682, June 2010.
  • Gongjun Yan, Danda B. Rawat and Bhed B. Bista, Provisioning Vehicular Ad hoc Networks with Quality of Service, In Proceedings of the Fifth International Conference on Broadband and Wireless Computing, Communication and Applications (BWCCA-2010), pp. 102 —107, Fukuoka, Japan, Nov 2010. (Best Paper Award)
  • Bhed B. Bista and Danda B. Rawat. Analysis of Data Gathering Schemes for Layered Sensor Networks with Multi-hop Polling. In Proceedings of International Conference on Wireless Communication and Sensor Networks 2010 (ICWCSN 2010), pp. 1114—1120, July 28-30, 2010, Paris, France.
  • Gongjun Yan, W. Yang, M. C. Weigle, S. Olariu and Danda B. Rawat, “Cooperative Collision Warning through Mobility and Probability Prediction,” In Proceedings of the IEEE Intelligent Vehicles Symposium 2010 (IV'10). Page(s): 1172 - 1177, San Diego, CA, June 2010.
  • Danda B. Rawat and D. C. Popescu. Joint Precoder and Power Adaptation for Cognitive Radios in Interference Systems. In proceedings of the 28th IEEE International Performance Computing and Communications Conference Workshop--IPCCC 2009, presented at The 2nd IEEE International Workshop on Dynamic Spectrum Access and Cognitive Radio Networks, Dec. 14 – 16, 2009, Phoenix, AZ.
  • M. Abuelela, S. Olariu, M. Cetin and Danda B. Rawat. Enhancing Automatic Incident Detection Using Vehicular Communications, In Proceedings of IEEE Vehicular Technology Conference -VTC Fall 2009, September 2009, Anchorage, AK.
  • Gongjun Yan, Danda B. Rawat and S. El-Tawab. Ticket-based Reliable Routing in VANET, In Proceedings of the IEEE International Conference on Mobile Ad-hoc and Sensor Systems Workshop --- MASS 2009, presented at the First International Workshop on Intelligent Vehicular Networks (InVeNET 2009), pp. 609 – 614, October, 2009, Macau SAR, P.R.C.
  • Danda B. Rawat, Gongjun Yan, D. C. Popescu, M. C. Weigle, and S. Olariu. Dynamic Adaptation of Joint Transmission Power and Contention Window in VANET, In Proceedings of IEEE Vehicular Technology Conference -VTC Fall 2009, September 2009, Anchorage, AK.
  • Danda B. Rawat and D. C. Popescu. Joint Codeword and Power Adaptation for CDMA Systems with Multipath and QoS Requirements. In Proceedings of 2008 IEEE Global Telecommunications Conference - GLOBECOM'08, pp. 4050-4054, December 2008, New Orleans, LA.
  • Danda B. Rawat, S. Abraham, S. Koduri, and D. Popescu, " Transmitter/Receiver Optimization in Wireless Systems," ODU-NSU-EVMS-VTC Research Exposition Day: Research Expo 2008 - Communities of Research: Discovery, Innovation and Entrepreneurship, Ted Constant Hall, Norfolk, VA, (Poster), p. 23, April 09, 2008.
  • Danda B. Rawat, D. C. Popescu, and M. Song. Performance Enhancement of EDCA Access Mechanism of IEEE 802.11e Wireless LAN. In Proceedings of 2008 IEEE Radio and Wireless Symposium - RWS'08, pp. 507-510, January 2008, Orlando, FL.
  • D. C. Popescu, O. Popescu and Danda B. Rawat. Gradient Descent Interference Avoidance with Target SIR Matching. In Proceedings of 2008 IEEE Consumer Communications and Networking Conference - CCNC 2008, pp. 200-204, January 2008, Las Vegas, NV.
  • D. C. Popescu, Danda B. Rawat, and O. Popescu. Gradient Descent Interference Avoidance for Uplink CDMA Systems with Multipath. In Proceedings of 41st Annual Asilomar Conference on Signals, Systems, and Computers 2007, pp. 1060 - 1064, November 2007, Pacific Grove, CA.
  • D. C. Popescu, Sirisha Koduri, and Danda B. Rawat. Interference Avoidance With Limited Feedback. In Proceedings of 41st Annual Asilomar Conference on Signals, Systems, and Computers 2007, pp. 1046-1049, November 2007, Pacific Grove, CA.




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