"Wi-XLE: Towards Sub-terabit/s Wi-Fi at eXtremely Low Energy"

Sridhar Rajagopal, Senior Staff engineer, Samsung

May 31st (Friday), 9:30am
Engineering Science Building (ESB), Rm 2003

We present sub-terabit/s data rates at extremely low energy (<10 pJ/bit) as a vision for the next evolution of Wi-Fi. We explore the feasibility and the innovations in design and technology that are needed to attain this vision. We investigate mmWave frequencies to provide sufficient bandwidth and use of state-of-the-art technologies such as MIMO and OFDM to provide high spectral efficiency needed to attain sub-terabit/s data rates, while simultaneously looking at power consumption challenges due to lower RF efficiency and extremely high rate baseband signal processing. We quantify the link budget and power budget for major functional blocks for such a Wi-Fi chipset. Key trade-offs are explored in different parts of the baseband, RF, antenna and system design for Wi-XLE in order to meet the requirements of simultaneously providing high data rates and energy efficiency. We project how the major functional blocks should be designed using these tradeoffs to provide sub-terabit/s data rates while providing extremely low energy consumption.

About Sridhar Rajagopal:

photo of sridhar rajagopal Sridhar is a Sr. Staff engineer in Samsung’s R&D center in Dallas, TX. He received his M.S/Ph.D from Rice University in 2000 and 2004 respectively. He has held positions at Nokia and a start-up (WiQuest communications) on UWB and wireless USB technology. His research interests are in short range wireless technologies, focusing on non-traditional wireless spectrum such as optical and mmWave frequencies.

Hosted by: Professor Upamanyu Madhow