Results 271 to 280 of about 17,709 (313)
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2017
As we have already indicated in discussing geometrical optics in the previous two chapters, rays from a point object in a perfect optical system form a homocentric pencil of rays that converge to a point image; and the wave fronts (which, by definition, are perpendicular to the rays) are spherical.
Charles S. Williams, Orville A. Becklund
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As we have already indicated in discussing geometrical optics in the previous two chapters, rays from a point object in a perfect optical system form a homocentric pencil of rays that converge to a point image; and the wave fronts (which, by definition, are perpendicular to the rays) are spherical.
Charles S. Williams, Orville A. Becklund
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Cross-Domain Transmission Scheme for Uplink OTFS-RSMA Based on Heterogeneous Mobile User Grouping
IEEE Communications LettersRate Splitting Multiple Access (RSMA) is an emerging technology that extends traditional multiple access techniques, such as Non-Orthogonal Multiple Access (NOMA) and Space Division Multiple Access (SDMA), with significant advantages in enhancing QoS and
Qiwei Huai +3 more
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OTFS-Based ISAC: How Delay Doppler Channel Estimation Assists Environment Sensing?
IEEE Wireless Communications LettersEnvironment sensing has become a crucial aspect of next-generation wireless networks. The orthogonal time-frequency space (OTFS) waveform, a recently introduced technique that harnesses the delay-Doppler domain for information transmission, exhibits ...
Buyi Li +4 more
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Data-Driven Intelligent Receiver for OTFS Communication in Internet of Vehicles
IEEE Transactions on Vehicular TechnologyWith the continuous maturity of fifth-generation (5G) mobile communication technology, the Internet of Vehicles (IoV) has become a key scenario for future intelligent transportation system.
Bin Wang +3 more
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Optica Acta: International Journal of Optics, 1971
The concept of the assessment of image quality by means of the optical transfer function (OTF) is traced from the early use of sine wave test charts through to the development of the high precision...
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The concept of the assessment of image quality by means of the optical transfer function (OTF) is traced from the early use of sine wave test charts through to the development of the high precision...
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OTFS Performance on Static Multipath Channels
IEEE Wireless Communications Letters, 2019Orthogonal time frequency space (OTFS) modulation is known to achieve excellent error performance in delay–Doppler channels. However, its performance over static multipath channels has never been fully investigated. In this letter, we show that, in static multipath channels, the system structure of OTFS is equivalent to the asymmetric orthogonal ...
Patchava Raviteja +2 more
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Spectrally Precoded OTFS Modulation
2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), 2022Wei-Chang Chen +2 more
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OTFS and Delay Doppler Communications
2023 28th Asia Pacific Conference on Communications (APCC), 2023Y. Hong, Masahiro Umehira
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A Novel Waveform for Future Wireless Communication Systems: Data Peninsular‐OTFS (DP‐OTFS)
International Journal of Communication SystemsABSTRACTIn this work, we propose a novel Data Peninsular‐OTFS (DP‐OTFS) waveform technique to provide better resilience against intersymbol and intercarrier interferences in high‐mobility, doubly dispersive channels. We design the transmit symbol mapping in such a way that the circular convolution relationship is maintained between the transmit and ...
S. Uma Maheswari +2 more
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Research on OTFS Systems for 6G
2022 IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom), 2022Bei Li +8 more
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