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Toplam kayıt 134, listelenen: 121-130
Stackelberg game for secure CR-NOMA networks against internal eavesdropper
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2023)
The combination of Cognitive Radio with Nonorthogonal Multiple Access (CR-NOMA) has enormous potential interest to improve spectral efficiency and increase system capacity in future wireless communication networks. Hence, ...
Inter-HAP based geometrical 3-D channel model operating at 28 to 60 GHz for future 6G non-terrestrial networks
(Institute of Electrical and Electronics Engineers Inc., 2023)
This paper presents a geometrical 3-D channel model for stationary inter-high altitude platform (HAP) systems operating at millimeter wave (mmWave) frequency bands for the future 6G non-terrestrial networks (NTNs). The ...
Beamspace MIMO systems with reduced beam selection complexity
(Institute of Electrical and Electronics Engineers Inc., 2023)
Beamspace multiple-input multiple-output (B-MIMO) systems with proper beam selection (BS) promise to lower the radio-frequency (RF) chains overhead with no noticeable degradation in performance. Most of the existing BS ...
Physical layer security for visible light communication in reflected indoor environments with inter-symbol interference
(Institute of Electrical and Electronics Engineers Inc., 2023)
Visible light communication (VLC) is a promising technology for next-generation indoor wireless broadband communication systems. Physical layer security (PLS) is one proposed method to ensure data security for VLC in public ...
Estimating multi-dimensional sparsity level for spectrum sensing
(Institute of Electrical and Electronics Engineers Inc., 2023)
Identifying spectrum opportunities is a crucial element of efficient spectrum utilization for future wireless networks. Spectrum sensing offers a convenient means for revealing such opportunities. Studies showed that usage ...
A novel cyclic prefix configuration for enhanced reliability and spectral efficiency in OTFS systems
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2023)
In practical transmission, orthogonal time-frequency-space (OTFS) is implemented using different prefix configurations including reduced-cyclic prefix (RCP) and full-CP (FCP). This letter presents a novel OTFS structure, ...
Low complex inter-doppler interference mitigation for OTFS systems via global receiver windowing
(Institute of Electrical and Electronics Engineers Inc., 2023)
Orthogonal time frequency space (OTFS) waveform has been considered as a potential candidate for affording a wide range of emerging communications and sensing applications in beyond 5G wireless technologies. OTFS takes ...
Resource allocation optimization in multiuser OFDM relay-assisted underwater acoustic sensor networks
(Elsevier Inc., 2023)
Resource allocation optimization (RAO) is a crucial design issue for providing green communications in the sixth generation (6G) of underwater acoustic (UWA) sensor networks (SNs). To have a suitable convergence speed in ...
Composite multiple-mode orthogonal frequency division multiplexing with index modulation
(IEEE-Institute of Electrical and Electronics Engineers Inc., 2023)
In this paper, we propose a composite multiple-mode orthogonal frequency division multiplexing with index modulation (C-MM-OFDM-IM) scheme to increase the spectral efficiency (SE) of OFDM-IM systems by extending the indexing ...
Delay-doppler-based key generation using OTFS
(Institute of Electrical and Electronics Engineers Inc., 2023)
Key generation for secure communication is challenging in high-mobility scenarios due to the low coherence time. This is further exacerbated in frequency-division duplex systems due to the non-reciprocal wireless channel ...