Praise for Fundamentals of WiMAX

xxivAcknowledgmentstrusting, and well-rounded person as an advisor. I also owe very special thanks to my associateadvisor and friend, Andrea Goldsmith, from whom I have probably learned more about wirelessthan anyone else. I would also like to acknowledge my University of Texas at Austin colleague,Robert Heath, who has taught me a tremendous amount about MIMO. In no particular order, Iwould also like to recognize my colleagues past and present, Moe Win, Steven Weber, SanjayShakkottai, Mike Honig, Gustavo de Veciana, Sergio Verdu, Alan Gatherer, Mihir Ravel, SriramVishwanath, Wei Yu, Tony Ambler, Jeff Hsieh, Keith Chugg, Avneesh Agrawal, ArneMortensen, Tom Virgil, Brian Evans, Art Kerns, Ahmad Bahai, Mark Dzwonzcyk, Jeff Levin,Martin Haenggi, Bob Scholtz, John Cioffi, and Nihar Jindal, for sharing their knowledge andproviding support and encouragement over the years.On the personal side, I would like to thank my precious wife, Catherine, who actually wasbrave enough to marry me during the writing of this book. A professor herself, she is the mostsupportive and loving companion anyone could ever ask for. I would also like to thank my parents,Greg and Mary, who have always inspired and then supported me to the fullest in all mypursuits and have just as often encouraged me to do less rather than more. I would also like toacknowledge my grandmother, Ruth Andrews, for her love and support over the years. Finally, Iwould also like to thank some of my most important sources of ongoing intellectual nourishment:my close friends from Sahuaro and Harvey Mudd, and my brother, Brad.Arunabha Ghosh: I would like to thank my co-authors Rias Muhamed and Jeff Andrewswithout whose expertise, hard work, and valuable feedback it would have been impossible tobring this book to completion.I would also like to thank my collaborators, Professor Robert Heath and Mr. Runhua Chenfrom the University of Texas at Austin. Both Professor Heath and Mr. Chen possess an incredibledegree of intuition and understanding in the area of MIMO communication systems and playa very significant role in my research activity at AT&T Labs. Their feedback and suggestionsparticularly to the close loop MIMO solutions that can be implemented with the IEEE 802.16e-2005 framework is a vital part of this book and one of its key distinguishing features.I also thank several of my colleagues from AT&T Labs including Rich Kobylinski, MilapMajmundar, N. K. Shankarnarayanan, Byoung-Jo Kim, and Paul Henry. Without their supportand valuable feedback it would not have been possible for me to contribute productively to abook on WiMAX. Rich, Milap, and Paul also played a key role for their contributions in Chapters11 and 12. I would also like to especially thank Caroline Chan, Wen Tong, and Peiying Zhufrom Nortel Networks’ Wireless Technology Lab. Their feedback and understanding of theclosed-loop MIMO techniques for WiMAX were vital for Chapters 8, 11, and 12.Finally and most important of all I would like to thank my wife, Debolina, who has been aninspiration to me. Writing this book has been quite an undertaking for both of us as a family andit is her constant support and encouragement that really made is possible for me to accept thechallenge. I would also like to thank my parents, Amitabha and Meena, my brother, Siddhartha,and my sister in-law, Mili, for their support.