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Eugene Chai

Eugene Chai

Principal Researcher

Murray Hill, NJ, USA

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Education
  • PhD, M.S., Computer Science & Engineering, University of Michigan, Ann Arbor, USA.
  • B.S., Computer Science & Engineering, National University of Singapore, Singapore.
Selected Articles and Publications
  • Timothy Woodford, Xinyu Zhang, Eugene Chai, Karthikeyan Sundaresan, and Mohammad A Khojastepour. Spacebeam: Lidar-driven one-shot mmwave beam management. In ACM MobiSys, 2021.
  • Ramanujan Sheshadri, Eugene Chai, Karthikeyan Sundaresan, and Sampath Rangarajan. Skyhaul: An autonomous gigabit network fabric in the sky. In ACM MobiHoc, 2021.
  • Ramanujan K Sheshadri, Eugene Chai, Karthikeyan Sundaresan, and Sampath Rangarajan. Skyhaul: An autonomous gigabit network fabric in the sky. arXiv preprint arXiv:2006.11307, 2020.
  • Mohammad Rostami, Karthik Sundaresan, Eugene Chai, Sampath Rangarajan, and Deepak Ganesan. Redefining passive in backscattering with commodity devices. In ACM MobiCom, 2020.
  • Mehrdad Moradi, Karthikeyan Sundaresan, Eugene Chai, Sampath Rangarajan, and Z Morley Mao. Skycore: moving core to the edge for untethered and reliable uav-based lte networks. CACM: Communications of the ACM, volume 64, pages 116–124. ACM New York, NY, USA, 2020.
  • Carlos Bocanegra, Mohammad A Khojastepour, Mustafa Y Arslan, Eugene Chai, Sampath Rangarajan, and Kaushik R Chowdhury. Rfgo: a seamless self-checkout system for apparel stores using rfid. In ACM MobiCom, 2020.
  • Binbin Xie, Jie Xiong, Xiaojiang Chen, Eugene Chai, Liyao Li, Zhanyong Tang, and Dingyi Fang. Tagtag: material sensing with commodity rfid. In ACM SenSys, 2019.
  • Mehrdad Moradi, Karthikeyan Sundaresan, Eugene Chai, Sampath Rangarajan, and Z Morley Mao. Skycore: Moving core to the edge for untethered and reliable uav-based lte networks. GetMobile: Mobile Computing and Communications, volume 23, pages 24–29. ACM, 2019.
  • Karthikeyan Sundaresan, Eugene Chai, Ayon Chakraborty, and Sampath Rangarajan. Skylite: End-to-end design of low-altitude uav networks for providing lte connectivity. arXiv preprint arXiv:1802.06042, 2018.
  • Ramanujan K Sheshadri, Karthikeyan Sundaresan, Eugene Chai, Sampath Rangarajan, and Dimitrios Kout- sonikolas. Eli: Empowering lte with interference awareness in unlicensed spectrum. In IEEE ICNP, 2018.
  • Mehrdad Moradi, Karthikeyan Sundaresan, Eugene Chai, Sampath Rangarajan, and Z Morley Mao. Skycore: Moving core to the edge for untethered and reliable uav-based lte networks. In ACM MobiCom, Best Paper Award, 2018.
  • Ayon Chakraborty, Eugene Chai, Karthikeyan Sundaresan, Amir Khojastepour, and Sampath Rangarajan. Skyran: A self-organizing lte ran in the sky. In CoNEXT, 2018.
  • Ramanujan K Sheshadri, Karthikeyan Sundaresan, Eugene Chai, Amir Khojastepour, Sampath Rangarajan, and Dimitrios Koutsonikolas. Blu: Blue-printing interference for robust lte access in unlicensed spectrum. In CoNEXT, 2017.
  • Swadhin Pradhan, Eugene Chai, Karthikeyan Sundaresan, Lili Qiu, Mohammad A Khojastepour, and Sampath Rangarajan. Rio: A pervasive rfid-based touch gesture interface. In ACM MobiCom, 2017.
  • Swadhin Pradhan, Eugene Chai, Karthik Sundaresan, Sampath Rangarajan, and Lili Qiu. Konark: A rfid based system for enhancing in-store shopping experience. In ACM WPA, 2017.
  • Eugene Chai, Karthik Sundaresan, Mohammad A Khojastepour, and Sampath Rangarajan. Lte in unlicensed spectrum: Are we there yet? In ACM MobiCom, 2016.
  • Xiufeng Xie, Xinyu Zhang, and Eugene Chai. Cross-cell dof distribution: Combating channel hardening effect in multi-cell mu-mimo networks. In ACM MobiHoc, 2015.
  • Xiufeng Xie, Eugene Chai, Xinyu Zhang, Karthikeyan Sundaresan, Amir Khojastepour, and Sampath Rangarajan. Hekaton: Efficient and practical large-scale mimo. In ACM MobiCom, 2015.
  • Eugene Chai and Kang G Shin. Low-overhead control channels in wireless networks. IEEE TMC, 2015. 2014 Karthikeyan Sundaresan, Mohammad Khojastepour, Eugene Chai, and Sampath Rangarajan. Full-duplex without strings: Enabling full-duplex with half-duplex clients. In ACM MobiCom, 2014.
  • Eugene Chai, Kang G Shin, Sung-Ju Lee, Jeongkeun Lee, and Raul Etkin. Defeating heterogeneity in wireless multicast networks. In IEEE INFOCOM, 2013.
  • Eugene Chai, Kang G Shin, Jeongkeun Lee, Sung-Ju Lee, and Raúl H Etkin. Fast spectrum shaping for next-generation wireless networks. IEEE TMC, 2013.
  • Eugene Chai, Jeongkeun Lee, Sung-Ju Lee, Raul Etkin, and Kang G Shin. Building efficient spectrum-agile devices for dummies. In ACM MobiCom, 2012.
  • Eugene Chai and Kang G Shin. Sidekick: Ap aggregation over partially overlapping channels. In IEEE ICNP 2011.
  • Eugene Chai and Kang G Shin. M-polar: channel allocation for throughput maximization in sdr mesh networks. In IEEE INFOCOM, 2010.
  • Eugene Chai, Mun Choon Chan, and Akkihebbal L Ananda. Coverage aware buffer management and scheduling for wireless sensor networks. In IEEE SECON, 2006.
Patents
  • Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. Tagging objects in indoor spaces using ambient, distributed backscatter, December 1 2020. US Patent 10,852,413.
  • Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. In-store interaction and location system for interfacing users with products, December 1 2020. US Patent 10,852,416.
  • Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. In-home inventory and location system, December 1 2020. US Patent 10,852,414.
  • Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. Backscatter-aided navigation system, December 1 2020. US Patent 10,852,415.
  • Karthikeyan Sundaresan, Eugene Chai, Mohammad Khojastepour, and Sampath Rangarajan. Speculative scheduling in mobile networks, March 3 2020. US Patent 10,582,529.
  • Mohammad Khojastepour, Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. Interference topology inference to enhance performance of lte unlicensed networks, February 25 2020. US Patent 10,574,535.
  • Karthikeyan Sundaresan, Eugene Chai, Ramanujan Sheshadri, Mohammad Khojastepour, and Sampath Rangarajan. System and method for enabling interference-awareness for lte operation in unlicensed spectrum, November 5 2019. US Patent 10,469,188.
  • Karthikeyan Sundaresan, Eugene Chai, Sampath Rangarajan, Mohammad Khojastepour, and Ayon Chakraborty. Self-configuring long term evolution radio access network on unmanned autonomous vehicles, September 12 2019. US Patent App. 16/289,847.
  • Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. Product checkout and interest detection in retail environment using radio-frequency identification, September 10 2019. US Patent 10,410,025.
  • Karthikeyan Sundaresan, Eugene Chai, Mohammad Khojastepour, and Sampath Rangarajan. Blue-printing interference for lte access in unlicensed spectrum, September 3 2019. US Patent 10,405,209.
  • Karthikeyan Sundaresan, Eugene Chai, Ayon Chakraborty, and Sampath Rangarajan. Implementing wireless communication networks using unmanned aerial vehicles, November 5 2019. US Patent 10,470,243.
  • Mohammad Khojastepour, Eugene Chai, Karthikeyan Sundaresan, and Sampath Rangarajan. Enabling technologies for lte on unlicensed spectrum, May 14 2019. US Patent 10,292,054.
  • Eugene Chai, Swadhin Pradhan, Sampath Rangarajan, Mohammad Khojastepour, and Karthikeyan Sundaresan. Battery-free touch-aware user input using rfid tags, July 9 2019. US Patent 10,346,655.
  • Eugene Chai, Mohammad Khojastepour, Karthikeyan Sundaresan, Sampath Rangarajan, and Mehrdad Moradi. Distributed core architecture for implementing wireless communication networks, September 3 2019. US Patent 10,405,373.
  • Raul Hernan Etkin, Sung-Ju Lee, Jung Gun Lee, and Eugene Chai. Distributed antenna system over ethernet, September 4 2018. US Patent 10,069,541.
  • Eugene Chai, Karthikeyan Sundaresan, Mohammad Khojastepour, Sampath Rangarajan, and Krishna Garikipati. Asynchronous access and synchronous transmission for coexistence of wireless standards, October 2 2018. US Patent 10,091,114.
  • Eugene Chai, Kang Shin, Sung-Ju Lee, Jung Gun Lee, and Raul Hernan Etkin. Wirelessly transmitting multi-cast signal using rateless codes, October 2 2018. US Patent 10,090,896.
  • Eugene Chai, Mohammad Khojastepour, Sampath Rangarajan, Karthikeyan Sundaresan, and Krishna Garikipati. Enabling long-term-evolution/wifi coexistence, April 3 2018. US Patent 9,936,414.
  • Mohammad Khojastepour, Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. Interference cancellation, November 7 2017. US Patent 9,813,995.
  • Mohammad Khojastepour, Karthikeyan Sundaresan, Eugene Chai, and Sampath Rangarajan. Degrees of freedom in multicell wireless systems with full-duplex base stations using interference alignment and methods for enabling full-duplex with half duplex clients, August 15 2017. US Patent 9,736,785.
  • Eugene Chai, Xiufeng Xie, Mohammad Khojastepour, Karthikeyan Sundaresan, and Sampath Rangarajan. Efficient large-scale multiple input multiple output communications, January 3 2017. US Patent 9,537,587.
  • Eugene Chai, Xiufeng Xie, Mohammad Khojastepour, Karthikeyan Sundaresan, and Sampath Rangarajan. Efficient large-scale multiple input multiple output communications, August 9 2016. US Patent 9,413,474.
  • Jeongkeun Lee, Eugene Songyou Chai, Sung-Ju Lee, and Raul Hernan Etkin. Hybrid platform for a software defined radio, September 15 2015. US Patent 9,136,894.
  • Eugene Chai, Jung Gun Lee, Sung-Ju Lee, Raul Hernan Etkin, and Kang Shin. Transmitting a wireless signal based on detected signal interference, April 7 2015. US Patent 9,001,927.

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