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SINR Analysis of Different OFDM-Inspired Waveforms Over Doubly Dispersive Channels.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Sep2020, Vol. 69 Issue 9, p9459-9468. 10p.
Abstract: Wireless channels generally exhibit dispersion in both time and frequency domain, known as doubly selective or doubly dispersive channels. To combat the delay spread effect, multicarrier modulation (MCM) such as orthogonal frequency division multiplexi...
Non-Redundant OFDM Receiver Windowing for 5G Frames and Beyond.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Jan2020, Vol. 69 Issue 1, p676-684. 9p.
Abstract: Contemporary receiver windowed-orthogonal frequency division multiplexing (RW-OFDM) algorithms have limited adjacent channel interference (ACI) rejection capability under high delay spread and small fast Fourier transformation (FFT) sizes. Cyclic prefi...
Location-Aware ICI Reduction in MIMO-OFDM Downlinks for High-Speed Railway Communication Systems.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Apr2018, Vol. 67 Issue 4, p2958-2972. 15p.
Abstract: In the long-term evolution for railway, orthogonal frequency-division multiplexing (OFDM) is adopted to provide seamless connection to existing ground cellular network and support high mobility communication in future 5G. However, due to the high veloc...
Near-Optimal Angle of Transform in FrFT-OFDM Systems Based on ICI Analysis.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Jul2016, Vol. 65 Issue 7, p5777-5783. 7p.
Abstract: In this paper, we establish an analytical framework to derive a closed form for a close approximation of the optimal angle of transform in fractional-Fourier-transform orthogonal-frequency-division-multiplexing (FrFT-OFDM) systems. In this framework, w...
Conditional Power and Rate Adaptation for MQAM/OFDM Systems Under CFO With Perfect and Imperfect Channel Estimation Errors.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Nov2015, Vol. 64 Issue 11, p5042-5055. 14p.
Abstract: In this paper, a new conditional power and rate adaptation scheme for orthogonal frequency-division multiplexing (OFDM) systems is proposed in the presence of carrier frequency offset (CFO), with perfect and imperfect channel state information (CSI). T...
Iterative Joint Estimation Procedure for Channel and Frequency Offset in Multi-Antenna OFDM Systems With an Insufficient Cyclic Prefix.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Oct2013, Vol. 62 Issue 8, p3653-3662. 10p.
Abstract: This paper addresses a strategy to improve the joint channel and frequency offset (FO) estimation in multi-antenna systems, widely known as multiple-input–multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM), in the presence of inters...
MIMO Multicarrier Transmission Over Doubly Selective Channels With Virtual Trajectories Receiver.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Oct2019, Vol. 68 Issue 10, p9330-9338. 9p.
Abstract: High mobility and multipath propagation induce Doppler and delay dispersion, respectively. When both phenomena affect the transmitted signal, the communication channel is known as a doubly selective channel (DSC). In multicarrier systems under this sce...
A Faster-Than-Nyquist (FTN)-Based Multicarrier System.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Jan2019, Vol. 68 Issue 1, p947-951. 5p.
Abstract: Faster-than-Nyquist (FTN) signaling is regarded as a potential modulation format of 5G communication system for its high spectral efficiency. To further improve the spectral efficiency, researchers have extended the FTN signaling to the frequency dimen...
Incoherent DPSK Diversity Reception in Doubly Selective Channels Based on Virtual Trajectories.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Aug2018, Vol. 67 Issue 8, p7744-7748. 5p.
Abstract: Estimation of channel state information in doubly selective channels (DSC) is a demanding task. In addition, the bandwidth expended in pilot signals may considerably impact the system throughput. Furthermore, the computational resources required for es...
Time-Asymmetric and Subcarrier-Specific Pulse Shaping in OFDM-Based Waveforms.
Publication Type: Academic Journal
Source(s): IEEE Transactions on Vehicular Technology. Nov2015, Vol. 64 Issue 11, p5070-5082. 13p.
Abstract: In orthogonal frequency-division multiplexing (OFDM) systems, suppressing the out-of-band (OOB) emission with pulse shaping comes with a price. The expense emerges in designing the transition between consecutive symbols. The price can be either the red...