Harish Venkatachari
Qualcomm
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Publication
Featured researches published by Harish Venkatachari.
asilomar conference on signals, systems and computers | 2007
Harish Venkatachari; Mahesh K. Varanasi
The maximization of mutual information in a general point-to-point MIMO fading channel with additive white Gaussian noise (AWGN) is considered under a rank constraint on the covariance of the vector Gaussian input. The channel is assumed to have an arbitrarily distribution with the channel state information (CSI) available at the receiver and the channel distribution information known at the transmitter. Solutions to such a problem, for instance, would enable us to investigate the tradeoff between complexity and performance while using low rank signalling as a communication strategy. A numerical algorithm is developed to compute the optimal input covariance that maximizes mutual information, which is a non-convex optimization problem, over the space of rank-constrained positive semi-definite matrices. The necessary Karush-Kuhn Tucker (KKT) conditions are solved to obtain the iterative algorithm.
Archive | 2013
Vansh Pal Singh Makh; Harish Venkatachari; Jittra Jootar; An-Swol Clement Hu; Chih-Ping Hsu
Archive | 2012
Anil Kumar Goteti; Amit Butala; Feng Lu; Harish Venkatachari
Archive | 2014
Sharif Ahsanul Matin; Mohamed A. El-Saidny; Ahmad Amin Thalji; Tariq Saleh Alsheikh-Eid; Sitaramanjaneyulu Kanamarlapudi; Harish Venkatachari; Shashank Vishwanatha Maiya
Archive | 2013
Atul Arvind Salvekar; Sharad Deepak Sambhwani; Prashant Udupa Sripathi; Nate Chizgi; Christopher C. Riddle; An-Swol Clement Hu; Harish Venkatachari
Archive | 2014
Harish Venkatachari; Vansh Pal Singh Makh; Nate Chizgi; Sharif Ahsanul Matin
Archive | 2013
Harish Venkatachari; Nate Chizgi; Prashant Udupa Sripathi; Atul Arvind Salvekar; Sharif Ahsanul Matin
Archive | 2014
Sitaramanjaneyulu Kanamarlapudi; Liangchi Hsu; Rohit Kapoor; Venkata Ramanan Venkatachalam Jayaraman; Rashid Ahmed Abkar Attar; Harish Venkatachari
Archive | 2013
Jimmy Chi-Wai Chui; Harish Venkatachari; Je Woo Kim; Nate Chizgi; Sharif Ahsanul Matin; Srivatsan Rajagopalan
Archive | 2013
Harish Venkatachari; Nate Chizgi; Zae Yong Choi