Results 41 to 50 of about 2,392 (179)
Modeling Interference Between OFDM/OQAM and CP-OFDM: Limitations of the PSD-Based Model [PDF]
, 2016 To answer the challenges put out by the next generation of wireless networks (5G), important research efforts have been undertaken during the last few years to find new waveforms that are better spectrally localized and less sensitive to asynchronism ...
Bader, Faouzi +2 more
core +6 more sources
Distortion analysis in OQAM/FBMC-based OFDMA [PDF]
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2015 The paper considers an OFDMA scheme based on OQAM/FBMC and evaluates the interaction of the different users to one another under strong frequency selectivity or timing synchronization errors between users. More specifically, due to imperfect equalization, each user contributes to a distortion component in the received signal.
Gregoratti, David, Mestre, Xavier
openaire +2 more sources
Waveform Design for 5G and Beyond [PDF]
, 2018 5G is envisioned to improve major key performance indicators (KPIs), such as peak data rate, spectral efficiency, power consumption, complexity, connection density, latency, and mobility.
Arslan, H. +3 more
core +2 more sources
A Discrete Bit Loading Algorithm for FBMC/OQAM [PDF]
IEEE Signal Processing Letters, 2012 In this letter the discrete rate maximization problem is investigated for FBMC/OQAM. The analysis reveals that if there is crosstalk certain bit allocations violate the power constraints. Aiming at ensuring the feasibility along with alleviating the complexity we have devised a novel iterative algorithm, which always converges.
Màrius Caus +2 more
openaire +5 more sources
Preamble-Based Channel Estimation for CP-OFDM and OFDM/OQAM Systems: A Comparative Study [PDF]
, 2009 In this paper, preamble-based least squares (LS) channel estimation in OFDM systems of the QAM and offset QAM (OQAM) types is considered, in both the frequency and the time domains.
Katselis, Dimitris +3 more
core +1 more source
, 2012 Publication in the conference proceedings of EUSIPCO, Bucharest, Romania ...
Dimitrios Katselis +2 more
openaire +3 more sources
Experimental Study of a Transmission System Based on FBMC/OQAM
Известия высших учебных заведений России: Радиоэлектроника, 2021 Introduction. This paper investigates a transmission system based on FBMC/OQAM multiplexing. This system is characterized by a high spectral efficiency, thereby attracting interest as an alternative transmission method in future wireless mobile ...
R. R. Abenov +4 more
doaj +1 more source
Efficient implementation of filter bank multicarrier systems using circular fast convolution [PDF]
, 2017 In this paper, filter bank-based multicarrier systems using a fast convolution approach are investigated. We show that exploiting offset quadrature amplitude modulation enables us to perform FFT/IFFT-based convolution without overlapped processing, and ...
Ghoraishi, Mir +3 more
core +1 more source
Joint Sparse Graph for FBMC/OQAM Systems [PDF]
IEEE Transactions on Vehicular Technology, 2018 As an advanced non-orthogonal multiple access (NOMA) technique, the low density signature (LDS) has never been used in filter bank multicarrier (FBMC) systems. In this paper, we model a low density weight matrix (LDWM) to utilize the intrinsic interference in FBMC systems when single-tap equalization is employed, and propose a LDS-FBMC scheme which ...
Lei Wen +6 more
openaire +4 more sources
Peak-to-Average Power Ratio Reduction of FBMC/OQAM Signal Using a Joint Optimization Scheme
IEEE Access, 2017 Owing to the signal structure difference between the filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) and the orthogonal frequency-division multiplexing (OFDM) systems, the existing technologies to reduce the peak-to ...
Junhui Zhao, Shanjin Ni, Yi Gong
doaj +1 more source