Amitava Ghosh is a Fellow of the Technical Staff at Motorola, Inc., where he works in the area of current and future air-interface technologies for 802.16m, 3GPP LTE, LTE-Advanced, and other broadband technologies. Since joining Motorola, he has worked on eight different wireless technologies and is currently leading Motorola's efforts in defining 3GPP LTE and LTE-Advance physical layer standards from the concept phase to the adopted baseline. Rapeepat Ratasuk is currently a Distinguished Member of the Technical Staff at Motorola, Inc. He has extensive experience in 3G/4G cellular system design and analysis (specifically LTE, HSPA, WiMAX, 1xEV-DV, and W-CDMA technologies), including algorithm development, performance analysis and validation, physical layer modelling and simulations.