Vishnu Vardhan Ratnam, Murat Bayraktar, Younghan Nam, Chance Tarver, Hao Chen, Chen Qian, Bin Yu, Charlie Zhang
Samsung Research Blog Article
Senior Staff Research Engineer
Wireless systems and DSP at Samsung Research America. Today I lead the Platform Innovation Team within the Advanced MIMO Lab. Previously, Ph.D. at Rice with Joseph Cavallaro. Research interests: digital predistortion, massive MIMO, advanced duplexing, and real-time GPU algorithm development for 6G AI-RAN.
Senior Staff Research Engineer
2026–PresentManage the Platform Innovation Team within the Advanced MIMO Lab. Drive GPU-based AI-RAN testbed development on a cuBB DU with a proprietary MIMO RU, and lead AI-based digital predistortion work for a high-efficiency PA architecture targeting commercial radio units.
Staff Research Engineer
2023–2026Led precommercial development of an upper mid-band (FR3) 256-TRX massive MIMO platform. Coordinated a global cross-functional effort from architecture through lab validation and reported progress to senior leadership.
Senior Systems Design / Architecture Engineer
2020–2023Three concurrent projects across cross-functional teams: sub-band full-duplex (digital SIC and massive-MIMO DPD, simulation through FPGA/RF integration to field evaluation, meeting 5G emission requirements), satellite NR (RACH/HARQ modifications in srsLTE C++, validated on USRP with a channel emulator), and distributed-MIMO field testing for channel reciprocity and calibration.
RF and PoC Intern
2017 · 2019GPU-accelerated LDPC decoder enabling real-time vRAN. LTE spectrum-sharing tools in the CBRS band on LabVIEW Communications and USRP, demonstrating dynamic spectrum access.
College Student Tech SR. Specialist, Intern
Cyber Solutions IRAD group in Hanover, MD. Designed and delivered a real-time wireless sensing application in GNU Radio on SDR. Working prototype within a single internship term.
Ph.D. in Electrical & Computer Engineering
2016–2022Advised by Joseph R. Cavallaro. Dissertation: "Nonlinearity Correction in Massive MIMO Systems via Virtual DPD." Built a neural-network predistortion architecture that operates before precoding in massive MIMO, cutting per-antenna complexity while preserving linearity, validated in simulation and on GPU.
M.S. in Electrical & Computer Engineering
2014–2016Thesis: "Sub-band Digital Predistortion for Noncontiguous Carriers: Implementation and Testing." Reduced-complexity, reduced-sample-rate DPD for LTE carrier aggregation.
B.S. in Electrical Engineering
2010–2014Senior design: 250 W HF Type-AB broadband power amplifier with 12 dB gain. Design, fabrication, and analysis.
B.S. in Mathematics
2010–2014Advanced study of linear algebra and analysis.
2023–Present
Leading the platform-side effort on a next-gen 256-TRX massive MIMO platform for the upper mid-band (FR3), where 6G is most likely to live.
2017–Present
A through-line in my work since 2017: running RAN workloads on commodity GPUs. Started with LDPC decoding for vRAN, now driving AI-RAN testbed development on a cuBB DU with a proprietary MIMO RU.
2024–Present
AI-based digital predistortion paired with envelope-tracking power amplifier architectures to push the energy efficiency of commercial radio units.
Vishnu Vardhan Ratnam, Murat Bayraktar, Younghan Nam, Chance Tarver, Hao Chen, Chen Qian, Bin Yu, Charlie Zhang
Samsung Research Blog Article
Gary Xu, Younghan Nam, Seunghyun Lee, Ardavan Tehrani, Dae Young Lee, Athul Prasad, Chance Tarver, Matthew Tonnemacher
Samsung Research Blog Article
R Ford, H Chen, P Madadi, M Kulkarni, X Ma, D Burghal, G Chen, Y Hu, Chance Tarver
2nd ACM Workshop on Open and AI RAN Workshop
Chance Tarver, Gary Xu, S Abu-Surra, WS Choi, YH Nam, J Zhang
U.S. Patent 12,401,405 Patent
Hyoungju Ji, Younsun Kim, Bin Yu, Q Xiong, S Abu-Surra, Chance Tarver, K Choi, J Shim, Gary Xu
IEEE Wireless Communications and Networking Conference (WCNC) Conference
Chance Tarver, Matthew Tonnemacher, Khurram Muhammad
U.S. Patent Patent
Chance Tarver
Rice University Thesis
Hyoungju Ji, Younsun Kim, Khurram Muhammad, Chance Tarver, Matthew Tonnemacher, Taehyoung Kim, Jinyoung Oh, Bin Yu, Gary Xu, Juho Lee
IEEE Access Journal
For research collaborations, talks, or anything wireless-systems related, LinkedIn is the fastest way to reach me.
or a note to hello@chancetarver.com