PUBLICATIONS
International Journals
[J13] Bridget Durowaa Antwi-Boasiako, Prince Anokye, Derek Kwaku Pobi Asiedu, Roger Kwao Ahiadormey, Kyoung-Jae Lee, and Andreas F. Molisch, "Multi-stream transmission in massive MIMO systems with full-duplex bi-directional communication links", IEEE Transactions on Vehicular Technology (TVT), vol. 72, no. 9, pp. 12367-12372, Sept. 2023
[J12] Roger Kwao Ahiadormey and Kwonhue Choi, "Low-Power High-Capacity Full-Duplex Scheme for Uplink Self-Backhauling", IEEE Communications Letters (CL), vol. 26, no. 9, pp. 2210-2214, Sept. 2022
[J11] Bridget Durowaa Antwi‑Boasiako, Roger Kwao Ahiadormey, Prince Anokye, and Kyoung‑Jae Lee, "On the performance of massive MIMO full‑duplex relaying with low‑resolution ADCs", IEEE Communications Letters (CL), vol. 26, no. 6, pp. 1259-1263, June 2022
[J10] Prince Anokye, Roger Kwao Ahiadormey, and Kyoung‑Jae Lee, "Full‑duplex cell‑free massive MIMO with low‑resolution ADCs", IEEE Transactions on Vehicular Technology (TVT), vol. 70, pp. 12179‑12184, Nov. 2021
[J9] Roger Kwao Ahiadormey and Kwonhue Choi, “Performance Analysis of Rate Splitting in Massive MIMO Systems with Low Resolution ADCs/DACs”, MDPI Applied Sciences, vol. 11, no. 20, p. 9409, Oct. 2021
[J8] Kwadwo Boateng Ofori‑Amanfo, Derek Kwaku Pobi Asiedu, Roger Kwao Ahiadormey, and Kyoung‑Jae Lee, ”Multi‑hop MIMO relaying based on simultaneous wireless information and power transfer,” IEEE Access (Acc), vol. 9, pp. 144857‑144870, Oct. 2021
[J7] Roger Kwao Ahiadormey, Prince Anokye, Han‑Shin Jo, Changick Song, and Kyoung‑Jae Lee, ”Secrecy outage analysis in NOMA power line communications”, IEEE Communications Letters (CL), vol. 25, pp.1448‑1452, May 2021
[J6] Roger Kwao Ahiadormey, Prince Anokye, Seok‑Hwan Park, and Kyoung‑Jae Lee, ”Two‑way relaying non‑orthogonal multiple access with imperfect successive interference cancellation in power line communications”, IEEE Open Journal of the Communications Society (OJCOMS), vol. 1, pp. 1872‑1885, 2020
[J5] Prince Anokye, Roger Kwao Ahiadormey, Han‑Shin Jo, Changick Song, and Kyoung‑Jae Lee, ”Low‑resolution ADC quantized full‑duplex massive MIMO‑enabled wireless backhaul in heterogeneous networks over Rician channels”, IEEE Transactions on Wireless Communications (TWC), vol. 19, no. 8, pp. 5503‑5517, Aug. 2020 [arXiv]
[J4] Roger Kwao Ahiadormey, Prince Anokye, and Kyoung‑Jae Lee, ”Cooperative non‑orthogonal multiple access over log‑normal power line communication channels”, MDPI Electronics, vol. 8, no. 11, pp. 1‑16, Nov. 2019
[J3] Roger Kwao Ahiadormey, Prince Anokye, Han‑Shin Jo, and Kyoung‑Jae Lee, ”Performance analysis of two‑way relaying in cooperative power line communications”, IEEE Access (Acc), vol. 7, pp. 97264‑97280, Aug. 2019
[J2] Prince Anokye, Roger Kwao Ahiadormey, Changick Song, and Kyoung‑Jae Lee, ”On the sum‑rate of heterogeneous networks with low-resolution ADC quantized full‑duplex massive MIMO‑enabled backhaul”, IEEE Wireless Communications Letters (WCL), vol. 8, no. 2, pp. 452‑455, Apr. 2019
[J1] Prince Anokye, Roger Kwao Ahiadormey, Changick Song, and Kyoung‑Jae Lee, ”Achievable sum‑rate analysis of massive MIMO full-duplex wireless backhaul links in heterogeneous cellular networks”, IEEE Access, vol. 6, pp. 23456‑23469, May 2018
Korean Journals
[K3] Roger Kwao Ahiadormey, Prince Anokye, Seok-Hwan Park, and Kyoung-Jae Lee, "Limited feedback based interference alignment for MIMO power line communication with common mode reception", Journal of Advanced Information Technology and Convergence (JAITC), vol. 9, no. 2, pp. 1-14, Dec. 2019
[K2] Derek Kwaku Pobi Asiedu, Roger Kwao Ahiadormey, Suho Shin, and Kyoung-Jae Lee, "Two-way hybrid power-line and wireless amplify-and-forward relay communication systems", Journal of Advanced Information Technology and Convergence (JAITC), vol. 9, no. 1, pp. 11-24, July 2019
[K1] Derek Kwaku Pobi Asiedu, Roger Kwao Ahiadormey, Suho Shin, and Kyoung-Jae Lee, "Performance comparison of single-carrier and multi-carrier systems in a terahertz wireless communication environment", Journal of Advanced Information Technology and Convergence (JAITC), vol. 9, no. 1, pp. 25-38, July 2019
International Conferences
[C5] Dennis Gookyi, Michael Wilson, Roger Kwao Ahiadormey, Derek Kwaku Pobi Asiedu, Paul Danquah and Raymond Gyaang, "The efficiency of convolution on Gemini deep learning hardware accelerator", IEEE AFRICON, Nairobi, Kenya, Sep. 2023.
[C4] Roger Kwao Ahiadormey, Prince Anokye, Han‑Shin Jo, and Kyoung‑Jae Lee, ”Decode‑and‑forward two‑way relaying in power line communications”, in Proc. IEEE Vehicular Technology Conference (VTC) ’19 Fall, Honolulu, Hawaii, USA, Sep. 2019
[C3] Prince Anokye, Roger Kwao Ahiadormey, and Kyoung‑Jae Lee, ”Heterogeneous networks topology with massive MIMO full‑duplex backhaul link: Uplink/downlink achievable rate analysis”, in Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) ’17, Montreal, QC, Canada, vol. 8, no. 11, pp. 1‑16, Oct. 2017
[C2] Roger Kwao Ahiadormey, Prince Anokye, and Kyoung‑Jae Lee, ”Precoding codebook design for power line communications with the common mode path”, in Proc. International Technical Conference on Circuits/Systems, Computers, and Communications (ITC‑CSCC) ’17, Busan, Korea, Jul. 2017
[C1] Roger Kwao Ahiadormey and Kyoung‑Jae Lee, ”A relay selection method based on ergodic capacity for amplify‑and‑forward MIMO relays”, in Proc. International Conference on Electronics, Information and Communication (ICEIC) ’15, Singapore, Jan. 2015
Korean Conferences
[D4] Roger Kwao Ahiadormey, Prince Anokye, and Kyoung-Jae Lee, "Secrecy outage analysis of NOMA systems in impulsive noise environments", in Proc. Joint Conference on Communications and Information (JCCI), Busan, Korea, Apr. 2021
[D3] Prince Anokye, Roger Kwao Ahiadormey, and Kyoung-Jae Lee, "Sum-rate analysis of heterogeneous networks with backhaul links supported by low-resolution ADC quantized full-duplex massive MIMO", in Proc. KICS Winter Conference, Jeongseon, Gangwon, Korea, Jan. 2018
[D2] Roger Kwao Ahiadormey, Prince Anokye, and Kyoung-Jae Lee, "Physical layer security in an amplify-and-forward PLC relay", in Proc. KICS Winter Conference, Jeongseon, Gangwon, Korea, Jan 2018
[D1] Bum-Su Kim, Roger Kwao Ahiadormey, and Kyoung-Jae Lee, "MIMO power line communications based on limited feedback channels", in Proc. KICS Winter Conference, Jeongseon, Gangwon, Korea, Jan 2018
Patents
[P6] Kyoung-Jae Lee and Roger Kwao Ahiadormey, "Relay selecting system of powerline communication network based on NOMA and method thereof", Korea Patent, 10-2475217, Dec. 2, 2022 (10-2020-0092488, July 24, 2020; 10-2021-0096418, July 22, 2021)
[P5] Kyoung-Jae Lee and Roger Kwao Ahiadormey, "Bidirectional relay selecting system of powerline communication network based on NOMA and method thereof", Korea Patent, 10-2459593, Oct. 24, 2022 (10-2020-0092490, July 24, 2020; 10-2021-0096352, July 22, 2021)
[P4] Kyoung-Jae Lee and Roger Kwao Ahiadormey, "Relay selecting system of powerline communication network based on NOMA and method thereof", Korea Patent, 10-2354470, Jan. 18, 2022 (10-2020-0092487, July 24, 2020; 10-2021-0096417, July 22, 2021)
[P3] Kyoung-Jae Lee and Roger Kwao Ahiadormey, "Apparatus and method for user centric multiple access communication system", Korea Patent, 10-2339401, Dec. 9, 2021 (10-2020-0141726, Oct. 29, 2020) Technology Transfer
[P2] Kyoung-Jae Lee and Roger Kwao Ahiadormey, "Apparatus and method for user centric multiple access communication system", applied to PCT, KR2020/015046, Oct. 30, 2020
[P1] Kyoung-Jae Lee and Roger Kwao Ahiadormey, "Bidirectional relay system of powerline communication network based on NOMA and method thereof", applied to Korea Patent, 10-2020-0092491, July 24, 2020