Publications

Publications list can also be found at Google scholar.

My doctoral research was in the design of optimal receivers for coherent optical communications. Specifically about mitigating nonlinear impairments in an optimal way for a single-channel coherent optical communication system. My master thesis was focused on sensor fusion for vehicular networks.

Journals

• N. V. Irukulapati, M. Secondini, E. Agrell, P. Johannisson, H. Wymeersch, “Improved lower bounds on mutual information accounting for nonlinear signal–noise interaction,” in IEEE/OSA Journal of Lightwave Technology, vol. 36, no. 22, pp. 5152-5159, Nov. 2018. [doi]
• N. V. Irukulapati, D. Marsella, P. Johannisson, E. Agrell, M. Secondini, H. Wymeersch, “Stochastic Digital Backpropagation with Residual Memory Compensation,” in IEEE/OSA Journal of Lightwave Technology, vol. 34, no. 2, pp. 566-572, Jan. 2016 (invited). [doi]
• N. V. Irukulapati, H. Wymeersch, P. Johannisson, E. Agrell, "Stochastic Digital Backpropagation," IEEE Transactions on Communications, vol. 62, no. 11, pp. 3956–3968, Nov. 2014. [doi]
• L. Beygi, N. V. Irukulapati, E. Agrell, P. Johannisson, M. Karlsson, H. Wymeersch, P. Serena, and A. Bononi,"On nonlinearly-induced noise in single-channel optical links with digital backpropagation", Optics Express, vol. 21, no. 22, pp. 26376-26386, Nov. 2013. [doi]
• D. Sen, H. Wymeersch, N. V. Irukulapati, E. Agrell, P. Johannisson, M. Karlsson, P.A. Andrekson, "MCRB for Timing and Phase Offset for Low-Rate Optical Communication with Self-Phase Modulation," in IEEE Communication Letters, vol. 17, no. 5, pp. 1004-1007, May 2013. [doi]
• R. Kianfar, B. Augusto, A. Ebadighajari, U. Hakeem, J. Nilsson, A. Raza, R. S. Tabar, N. V. Irukulapati, C. Englund, P. Falcone, S. Papanastasiou, L. Svensson, H. Wymeersch, "Design and Experimental Validation of Cooperative Driving System in Grand Cooperative Driving Challenge,"IEEE Transactions on Intelligent Transportation Systems, vol. 13, no. 3, Sept. 2012. [doi]
• N. V. Irukulapati, V.K.Chakka and A.Jain, "SLM Based PAPR Reduction of an OFDM Signal Using New Phase Sequence", Electronics Letters, vol. 45, no. 24, Nov. 2009. [doi]

Conferences

• H. Wymeersch, N. V. Irukulapati, I. Sackey, P. Johannisson, and E. Agrell, “Backward particle message passing”, in Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), June 2015. (invited) [doi]
• H. Wymeersch, N. V. Irukulapati, D. Marsella, P. Johannisson, E. Agrell, M. Secondini, "On the Use of Factor Graphs in Optical Communications," in Proc. Optical Fiber Communication Conference (OFC), March 2015. (invited) [doi]
• N. V. Irukulapati, D. Marsella, P. Johannisson, M. Secondini, H. Wymeersch, E. Agrell, E. Forestieri, "On maximum likelihood sequence detection for single-channel coherent optical communications", in Proc. European Conference on Optical Communications (ECOC), Cannes, Sep. 2014. [doi] [poster]
• N. V. Irukulapati, H. Wymeersch, P. Johannisson, E. Agrell, "Extending Digital Backpropagation to Account for Noise," in Proc. European Conference on Optical Communications (ECOC), London, Sep. 2013. [doi] [video] [Presentation] [Experiences]
• T. Ahmad, Y. Ai, P. Muralidharan, N. V. Irukulapati, P. Johannisson, H. Wymeersch, E. Agrell, P. Larsson-Edefors, and M. Karlsson, "Methodology for Power-Aware Coherent Receiver Design", in Signal Processing in Photonics Communications (SPPCom) Topical Meeting, Puerto Rico, 2013. [doi]
• Chandwani. Mohit, Singhal. Arjun, Vishnukanth. I. Naga and Vijaykumar, C, "A Low Complexity SLM Technique for PAPR Reduction in OFDM using Riemann Sequence and Thresholding of Power Amplifier", in Proceedings of INDICON, pp. 125-128, 2009. [doi]
• Joshi.A, VishnuKanth. I. N, Samdaria.N, Bagla.S, Ranjan.P, "GPS-Less Animal Tracking System", WCSN-2008. [doi]

Theses

• N. V. Irukulapati, “Towards the Limits of Nonlinearity Compensation for Fiber-Optic Channels,” Doctoral Thesis (2016), Chalmers University of Technology, Gothenburg, Sweden, 2016. [doi] [Presentation] [Video]
• N. V. Irukulapati, “On Nonlinear Compensation Techniques for Coherent Fiber-Optical Channel,” Licentiate Thesis (R001/2014), Chalmers University of Technology, Gothenburg, Sweden, 2014. [doi] [Presentation] [pictures]
• N. V. Irukulapati, "Sensor Fusion for Vehicular Networks", M.Sc.Thesis (EX 061/2011), Chalmers University of Technology, Gothenburg, Sweden, 2011. [doi] [Graduation cermony]