Browsing by Author "Thet, Nann Win Moe"
Now showing items 1-7 of 7
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Extended reduced-rank joint estimation of direction of arrival with mutual coupling for coherent signals
Thet, Nann Win Moe; Kachroo, Amit; Özdemir, Mehmet Kemal (Wiley Blackwell, 2019)This paper proposes an extended method for direction-of-arrival (DOA) estimation with unknown mutual coupling for coherent signals. The proposed method employs the forward/backward spatial smoothing to decorrelate the ... -
Impact of mutual coupling on power-domain non-orthogonal multiple access (NOMA)
Thet, Nann Win Moe; Khan, Sana; Arvas, Ercüment; Özdemir, Mehmet Kemal (IEEE-Institute of Electrical and Electronics Engineers Inc, 2020)This paper investigates the impact of mutual coupling (MC) on the achievable sum-rate of power-domain non-orthogonal multiple access (NOMA) system in both uplink (UL) and downlink (DL) transmissions. We assume a single-antenna ... -
Joint overlap ratios and power allocation with user fairness in partial non-orthogonal multiple access (P-NOMA)
Thet, Nann Win Moe; Özdemir, Mehmet Kemal (Institute of Electrical and Electronics Engineers Inc., 2020)In power-domain non-orthogonal multiple access (NOMA), since many users are able to utilize a single frequency subcarrier with different power levels, user interference occurs if successive interference cancellation (SIC) ... -
Low-complexity deep learning-based beamforming in MISO systems
Thet, Nann Win Moe; Elgammal, Khaled Walid; Ateş, Hasan Fehmi; Özdemir, Mehmet Kemal (Institute of Electrical and Electronics Engineers Inc., 2021)This study proposes a low-complexity deep learning-based beamforming neural network (BFNN) for massive multiple-input single-output (MISO) systems. We adopt an unsupervised learning-based convolutional neural network (CNN) ... -
Partial-beam non-orthogonal multiple access (PB-NOMA) with fuzzy clustering
Thet, Nann Win Moe; Özdemir, Mehmet Kemal (IEEE-Institute of Electrical and Electronics Engineers Inc., 2021)This letter proposes a partial-beam non-orthogonal multiple access (PB-NOMA) system for millimeter wave (mmWave) channels. In the proposed system, the user terminals (UT)s partially belong to different user groups and ... -
Performance analysis of user scheduling in massive MIMO with fast moving users
Thet, Nann Win Moe; Baykaş, Tuncer; Özdemir, Mehmet Kemal (Institute of Electrical and Electronics Engineers Inc., 2019)This paper analyzes the effect of fast fading Doppler channel on user scheduling algorithms. Considering a millimeter wave (mmWave) downlink massive multiple-input multiple-output (M-MIMO) system, we adopt a two-stage ... -
Reduced-rank joint estimation of DOA with mutual coupling
Thet, Nann Win Moe; Özdemir, Mehmet Kemal; Kachroo, Amit (Institute of Electrical and Electronics Engineers Inc., 2018)In this paper, an extended reduced-rank direction-of-arrival (DOA) estimation with unknown mutual coupling in uniform linear array (ULA) structure is presented. The proposed method is based on the joint iterative subspace ...
