• Worked with a team of experts on designing, implementing, and testing the physical layer part of the WiMAX Standard IEEE 802.16e for broadband wireless metropolitan access networks. Specifically, worked on designing and evaluating space-time codes, pilot training schemes, and channel estimation algorithms.
• Successfully implemented and evaluated various space-time coding schemes using 2,3, and 4 antennas at the base station. The work resulted in 5 proposals to the IEEE 802.16e standard body (2 of which were voted into the standard).
• Designed training schemes to improve the operation of the space-time mode of the IEEE 802.16e standard. This resulted in 2 contributions to the IEEE 802.16e standard, one of which was voted in.
• Worked with a team of experts to design and implement channel estimation and tracking algorithms for the IEEE 802.16e standard. Came up with a computationally efficient method for channel estimation and tracking in the frequency domain. Work resulted in one patent.