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5G traffic has very diverse requirements with respect to data rate, delay, and reliability. The concept of using multiple OFDM numerologies adopted in the 5G NR standard will likely meet these multiple requirements to some extent. However, the traffic is radically accruing different characteristics and requirements when compared with the initial stage of 5G, which focused mainly on high-speed multimedia data applications. For instance, applications such as vehicular communications and robotics control require a highly reliable and ultra-low delay. In addition, various emerging M2M applications have sparse traffic with a small amount of data to be delivered. The state-of-the-art OFDM technique has some limitations when addressing the aforementioned requirements at the same time. Meanwhile, numerous waveform alternatives, such as FBMC, GFDM, and UFMC, have been explored. They also have their own pros and cons due to their intrinsic waveform properties. Hence, it is the opportune moment to come up with modification/variations/combinations to the aforementioned techniques or a new waveform design for 5G systems and beyond. The aim of this Special Issue is to provide the latest research and advances in the field of waveform design for 5G systems and beyond.

Technology: general issues --- History of engineering & technology --- Energy industries & utilities --- multicarrier modulation --- prototype filter design --- frequency sampling methods --- windowing based methods --- optimization based methods --- V2X --- LDS-F-OFDM --- LDS-UFMC --- EVA channel model --- multi-input-multi-output (MIMO) --- space time block coding --- physical layer security (PLS) --- secrecy capacity --- 5G waveform --- SC-FDMA --- FBMC --- Low PAPR FBMC (LP-FBMC) --- access timing offset --- carrier frequency offset --- high-power amplifier (HPA) nonlinearity --- software defined radio (SDR) device --- uplink indoor channel --- out-of-band (OOB) emission --- space time codes --- differential space time modulation --- differential detection --- pair-wise detection --- maximum likelihood detection --- n/a

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• Reference Manager
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5G traffic has very diverse requirements with respect to data rate, delay, and reliability. The concept of using multiple OFDM numerologies adopted in the 5G NR standard will likely meet these multiple requirements to some extent. However, the traffic is radically accruing different characteristics and requirements when compared with the initial stage of 5G, which focused mainly on high-speed multimedia data applications. For instance, applications such as vehicular communications and robotics control require a highly reliable and ultra-low delay. In addition, various emerging M2M applications have sparse traffic with a small amount of data to be delivered. The state-of-the-art OFDM technique has some limitations when addressing the aforementioned requirements at the same time. Meanwhile, numerous waveform alternatives, such as FBMC, GFDM, and UFMC, have been explored. They also have their own pros and cons due to their intrinsic waveform properties. Hence, it is the opportune moment to come up with modification/variations/combinations to the aforementioned techniques or a new waveform design for 5G systems and beyond. The aim of this Special Issue is to provide the latest research and advances in the field of waveform design for 5G systems and beyond.

Technology: general issues --- History of engineering & technology --- Energy industries & utilities --- multicarrier modulation --- prototype filter design --- frequency sampling methods --- windowing based methods --- optimization based methods --- V2X --- LDS-F-OFDM --- LDS-UFMC --- EVA channel model --- multi-input-multi-output (MIMO) --- space time block coding --- physical layer security (PLS) --- secrecy capacity --- 5G waveform --- SC-FDMA --- FBMC --- Low PAPR FBMC (LP-FBMC) --- access timing offset --- carrier frequency offset --- high-power amplifier (HPA) nonlinearity --- software defined radio (SDR) device --- uplink indoor channel --- out-of-band (OOB) emission --- space time codes --- differential space time modulation --- differential detection --- pair-wise detection --- maximum likelihood detection

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This book explores the enabling technology in optical fiber communications. It focuses on the state-of-the-art advances from fundamental theories, devices, and subsystems to networking applications as well as future perspectives of optical fiber communications. The topics cover include integrated photonics, fiber optics, fiber and free-space optical communications, and optical networking.

Research & information: general --- spectral shaping --- photonic crystal fiber cascade --- zero-dispersion frequencies spacing --- supercontinuum generation --- virtual network embedding --- converged optical networks --- network slicing --- machine learning --- software-defined network --- optical waveguide --- silicon photonics --- silicon nitride --- optical polarization --- bipolar --- optical code division multiple access --- electro-optical modulator --- free-space optics communication --- FiWi access network --- energy efficiency --- power over fiber --- TWDM-PON --- delay analysis --- frequency modulated continuous-wave (FMCW) --- light detection and ranging (LiDAR) --- instantaneous frequency --- coherent optical spectrum analyzer (COSA) --- time-frequency curve --- microstructured optical fiber --- optical fiber sensors --- refractive index sensor --- surface plasmon resonance --- optical fiber communication --- electrical dispersion compensation --- multi-channel digital backpropagation --- equalization-enhanced phase noise --- achievable information rates --- elastic optical network --- invalid spectrum rate --- advanced reservation --- defragmentation --- blocking probability --- spectrum alignment rate --- VCSEL --- neural network-based equalization --- Volterra series-based equalization --- lanthanum-aluminum silicate glass --- polarization-maintaining fiber --- fiber Bragg grating --- Sagnac interferometer --- fluorinated polyimide film --- humidity hysteresis --- optical frequency domain reflectometry --- position deviation compensation --- sub-millimeter spatial resolution --- analysis --- FPGA --- GPON --- MongoDB --- storing --- fiber optics communications --- optical security and encryption --- phase fluctuations --- Elastic Optical Network --- space division multiplexing --- routing --- coherent optical communication --- offset-quadrature amplitude modulation-based filter-bank multicarrier (FBMC/OQAM) --- blind phase noise compensation --- inter-carrier-interference (ICI) --- discrete cosine transform (DCT) --- Brillouin --- ultrafast --- distributed sensing --- pump pulse array --- resolution enhancement --- SNR