Results 31 to 40 of about 197 (147)
Channel Estimation Approach with Low Pilot Overhead in FBMC/OQAM Systems
Wireless Communications and Mobile Computing, Volume 2021, Issue 1, 2021., 2021 In filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) systems, a large pilot overhead is required due to the existence of the imaginary interference. In this paper, we present an approach to reduce the pilot overhead of channel estimation. A part of pilot overhead is used for transmitting data, and compensating symbols are
Jun Sun +6 more
wiley +1 more source
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
FBMC/OQAM Security Strategy Based on Diversity DNA Encryption
IEEE Photonics Journal, 2021 In this paper, a diversity deoxyribonucleic acid (DNA) chaotic encryption strategy is proposed to enhance the physical layer security of the filter bank multi-carrier/offset quadrature amplitude (FBMC/OQAM) system.
Rong Tang +7 more
doaj +1 more source
Performance evaluation of PAPR reduction in FBMC system using nonlinear companding transform
ICT Express, 2019 Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) is one of the best waveforms used in 5G communications. The FBMC is a multicarrier modulation system (MCM) which suffers from high peak to average power ratio (PAPR) causing
Imad A. Shaheen +3 more
doaj +1 more source
Compressive Sensing-Based Channel Estimation for FBMC-OQAM System Under Doubly Selective Channels
IEEE Access, 2019 Filter-bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) has been considered as an alternative scheme to orthogonal frequency division multiplexing (OFDM).
Zongmiao He +5 more
doaj +1 more source
Evaluation and Analysis of FBMC/OQAM Systems Based on Pulse Shaping Filters
IEEE Access, 2020 Cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) is the most widespread multicarrier modulation scheme. However, the use of a rectangular filter in CP-OFDM causes poor out-of-band (OoB) radiation.
Heba M. Abdel-Atty +2 more
doaj +1 more source
Power Allocation and Capacity Analysis for FBMC-OQAM With Superimposed Training
IEEE Access, 2019 Superimposed training (ST) is a semiblind channel estimation technique, proposed for orthogonal frequency division multiplexing (OFDM), where training sequences are added to data symbols, avoiding the use of dedicated pilot-subcarriers, and increasing ...
Juan Carlos Estrada-Jimenez +3 more
doaj +1 more source
PAPR Reduction in the FBMC-OQAM System via Segment-Based Optimization
IEEE Access, 2018 Multicarrier modulation (MCM) schemes have been intensively studied and developed, because of their numerous advantages, which include high data rate and immunity to multipath fading.
Ji-Hyun Moon, Ye-Ri Nam, Jeong-Ho Kim
doaj +1 more source
IEEE Access, 2020 Partial transmit sequence (PTS) scheme has been well applied to reduce the high peak-to-average power ratio (PAPR) of the orthogonal frequency division multiplexing (OFDM) signal.
Siying Lv +3 more
doaj +1 more source
ETRI Journal, 2021 Filterbank multicarrier with offset quadrature amplitude modulation (FBMC‐OQAM) is an attractive alternative to the orthogonal frequency division multiplexing (OFDM) modulation technique.
Vibhutesh Kumar Singh +3 more
doaj +1 more source