JANUARY 1, 2016 VOLUME 64 NUMBER 1 ITPRED (ISSN 1053-587X) REGULAR PAPERS Learning in an Uncertain World: MIMO Covariance Matrix Optimization With Imperfect Feedback http://dx.doi.org/yes ....... .. .. ........ ......... ......... ........ ......... ......... ........ ......... ......... ........ .. P. Mertikopoulos and A. L. Moustakas 5 Waveform Design for Radar STAP in Signal Dependent Interference http://dx.doi.org/10.1109/TSP.2015.2474309 . ........ ......... ......... .. .. ........ ......... ......... ........ ......... ......... ........ ......... ......... ........ ......... .. P. Setlur and M. Rangaswamy 19 A Frequency Domain Approach to Eigenvalue-Based Detection With Diversity Reception and Spectrum Estimation ....... ......... ......... ........ ......... ..... E. H. G. Yousif, T. Ratnarajah, and M. Sellathurai 35 Parallel Two-Way Relaying in Cooperative OFDMA Cellular Systems http://dx.doi.org/10.1109/TSP.2015.2478737 ...... S. Jin and L. Ping 48 http://dx.doi.org/10.1109/TSP.2015.2480042 Outlier-Robust Greedy Pursuit Algorithms in -Space for Sparse Approximation http://dx.doi.org/10.1109/TSP.2015.2486745 ... ......... .. .. ........ ......... ......... ........ ......... ......... ........ ......... ......... ........ ...... W.-J. Zeng, H. C. So, and X. Jiang 60 A Minorization-Maximization Method for Optimizing Sum Rate in the Downlink of Non-Orthogonal Multiple Access Systems http://dx.doi.org/10.1109/TSP.2015.2481875 ...... ......... ........ . M. F. Hanif, Z. Ding, T. Ratnarajah, and G. K. Karagiannidis 76 Distributed Sequential Detection for Gaussian Shift-in-Mean Hypothesis Testing http://dx.doi.org/10.1109/TSP.2015.2480048 .... ......... .. .. ........ ......... ......... ........ ......... ......... ........ ......... ......... ........ ......... ......... .. A. K. Sahu and S. Kar www.signalprocessingsociety.org [1] FEBRUARY 2016 89http://dx.doi.org/yes http://dx.doi.org/10.1109/TSP.2015.2474309 http://dx.doi.org/10.1109/TSP.2015.2480042 http://dx.doi.org/10.1109/TSP.2015.2478737 http://dx.doi.org/10.1109/TSP.2015.2486745 http://dx.doi.org/10.1109/TSP.2015.2481875 http://dx.doi.org/10.1109/TSP.2015.2480048 http://www.signalprocessingsociety.org