Prof. K. K. Ramakrishnan's Research Lab.

Latest News

• Elizabeth successfully defended her PhD Defense. Congrats Dr. Liri!

  Elizabeth successfully defended her PhD Defense. Congrats Dr. Liri!

• Paper by Hongmiao and others accepted for IEEE ICNP 2023

  Paper by Hongmiao and others accepted for IEEE ICNP 2023

• Paper by Shixiong and others accepted for IEEE CloudNet 2023

  In this work, we develop L²5GC+. L²5GC+ is a re-architected 5G Core (5GC) network, aimed at reducing latency and improving user experience. L²5GC+ focuses on minimizing the impact of control plane operations on the data plane, while also enhancing data plane processing. It achieves this by exploiting shared memory (based on OpenNetVM), eliminating message serialization and HTTP processing overheads in 3GPP SBI, and using scalable packet classifiers for forwarding-rule lookups. L²5GC+ re-designs OpenNetVM's shared-memory-based networking stack to support synchronous I/O between control plane functions, which allows it to distinguish different user sessions and maintains strict 3GPP compliance. L²5GC+ also offers seamless integration with existing 5GC microservice implementations through equivalent SBI APIs, reducing code refactoring and porting efforts. Additionally, L²5GC+ implements paging and an intelligent handover scheme to reduce delays and data loss. It also offers integrated failure resiliency for faster recovery from failures compared to standard 3GPP procedures.

  L²5GC+ is built on the open-source kernel-based 5GC implementation called free5GC. By leveraging shared memory I/O, L²5GC+ optimizes the 5G control plane, enhancing latency, scalability, and overall user experience. L²5GC+ achieves 2X lower data plane latency for paging and handover events compared to free5GC. We demonstrate the improved performance of L²5GC+ on a 5G testbed with commercial basestations and UEs. The code of L²5GC+ is open-sourced at: https://github.com/nycu-ucr/L25GC.

• Paper by Shixiong and others accepted for IEEE NetSoft 2023

  Paper by Shixiong and others accepted for IEEE NetSoft 2023

• Sourav successfully defended his PhD Defense. Congrats Dr. Panda!

  Sourav successfully defended his PhD Defense. Congrats Dr. Panda!

• Paper by Shixiong and others accepted for IEEE TNSM (2023)

  Paper "MiddleNet: A Unified, High-Performance NFV and Middlebox Framework with eBPF and DPDK" by Shixiong and others accepted for IEEE TNSM. 

   

• Paper by Elizabeth Liri and others accepted for IEEE Network

   Paper "Energy-Efficient Distributed Task Scheduling for Multi-Sensor IoT Networks" by Elizabeth Liri and others accepted for IEEE Network (To appear in March/April issue)

• Paper by Elizabeth Liri and others accepted for ICDCN 2023.

  Paper "An Efficient Energy Management Solution for Renewable Energy Based IoT Devices" by Elizabeth Liri and others accepted for ICDCN 2023.

• Paper by Aditya Dhakal and others accepted for ACM CoNext 2022.

  Paper by Aditya Dhakal and others accepted for ACM CoNext 2022.

• Paper by Aditya Dhakal and others accepted for ACM Middleware 2022.

  Paper by Aditya Dhakal and others accepted for ACM Middleware 2022.

• Paper by Sourav Panda and others published at IEEE ICNP 2022.

  Synergy: A SmartNIC Accelerated 5G Dataplane and Monitor for Mobility Prediction
  Sourav Panda, K. K. Ramakrishnan, and Laxmi Bhuyan (University of California, Riverside)

• Our group was recently awarded an NSF-JUNO3 grant, along with Tim Wood (GWU) and our Japanese collaborators

  Our group was recently awarded an NSF-JUNO3 grant, along with Tim Wood (GWU) and our Japanese collaborators

• Two papers by Shixiong, Vivek and others accepted for ACM Sigcomm 2022
  • Shixiong Qi, Leslie Monis, Ziteng Zeng, Ian-chin Wang, K. K. Ramakrishnan. 2022. SPRIGHT: Extracting the Server from Serverless Computing! High- performance eBPF-based Event-driven, Shared-memory Processing. In ACM SIGCOMM 2022 Conference (SIGCOMM ’22), August 22–26, 2022, Amsterdam, Netherlands. ACM, New York, NY, USA, 15 pages. https://doi.org/10.1145/3544216.3544259
  • Vivek Jain, Hao-Tse Chu, Shixiong Qi, Chia-An Lee, Hung-Cheng Chang, Cheng-Ying Hsieh, K. K. Ramakrishnan, Jyh-Cheng Chen. 2022. L25GC: A Low Latency 5G Core Network based on High-Performance NFV Platforms. In ACM SIGCOMM 2022 Conference (SIGCOMM ’22), August 22– 26, 2022, Amsterdam, Netherlands. ACM, New York, NY, USA, 15 pages. https://doi.org/10.1145/3544216.3544267
• Paper by Vivek, Sourav, and Shixiong won the Best Paper Award at the IEEE 6GNet 2022 Conference

  Vivek Jain, Sourav Panda, Shixiong Qi and K. K. Ramakrishnan, "Evolving to 6G: Improving the Cellular Core to lower control and data plane latency," 2022 1st International Conference on 6G Networking (6GNet), 2022, doi: 10.1109/6GNet54646.2022.9830519.