Digital Predistortion of Broadband Amplifiers for Cable Access

Wednesday, April 10th, 2019 at 6:30 PM

TI Auditorium


6:30 - 7:00 PM Networking & Refreshments
7:00 - 8:00 PM Talks
8:00 - 8:30 PM Panel Session
8:30 - 8:45 PM Speaker Appreciation & Adjournment

Chair: Comsoc SCV
Organizer: Comsoc SCV

Session Abstract:Next generation cable infrastructure, e.g. full-duplex DOCSIS, requires broadband RF amplifiers with high output power, good linearity, and reduced power dissipation. It is difficult to meet the requirement even with GaN devices. Digital predistortion (DPD) has been proposed as a potential solution. However, DPD for cable access is quite different from the DPD technique commonly used in wireless base stations. Interesting issues include >1 GHz signal bandwidth, tilted spectrum, large peak-to-average ratio, and predistortion of multiple amplifiers by a single signal source. This talk will analyze those issues and show the BER and MER performance of an experimental system with FPGA-based DPD implementation.

Note: Refreshments are FREE for every one, you don't need to be an IEEE member!

Speaker: Qian Yu, PhD

Bio: Qian Yu (S96M99SM04) received the Ph.D. degree in electronic engineering from Tsinghua University, Beijing, China, in 1999. He is a Senior Principal Member of Technical Staff of Maxim Integrated, San Jose, CA. His research interests include signal processing in communication systems and architecture design of mixed-signal integrated circuits. He has over 40 referred publications and over 20 awarded patents.

Title: Digital Predistortion of Broadband Amplifiers for Cable Access