Results 101 to 110 of about 197 (147)
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FBMC OQAM: novel variant of OFDM
Journal of Optical Communications, 2021AbstractOrthogonal frequency division multiplexing (OFDM) revolutionizes the transmission technologies, including, optical as well as wireless communication. In OFDM the orthogonal nature of carriers makes it very good technique for data transfer. Still the out-of-band (OOB) radiation in OFDM leads to inter symbol interference (ISI) and bit error rate (
Shiv Om Tiwari, Rajeev Paulus
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On the Uplink Spectral Efficiency of the FBMC-OQAM Transceiver
2019 16th International Symposium on Wireless Communication Systems (ISWCS), 2019The analysis of the spectral efficiency that can be achieved by using the FBMC-OQAM transceiver in the uplink of the modern wireless networks is carried out. Such efficiency is studied in a scenario where the limitations are introduced by interferences due to the multiple access scenario, rather than by the presence of hostile wireless channels.
Mattera, Davide, Tanda, Mario
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Coordinated beamforming in MIMO FBMC/OQAM systems
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014In this contribution, we propose a coordinated transmit beamforming technique for point-to-point multiple-input-multiple-output (MIMO) filter bank based multi-carrier with offset quadrature amplitude modulation (FBMC/OQAM) systems. To enable reliable transmissions when the number of transmit antennas does not exceed the number of receive antennas and ...
Yao Cheng 0001, Peng Li, Martin Haardt
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Generalized Synchronization Algorithms for FBMC-OQAM Systems
IEEE Transactions on Vehicular Technology, 2018Synchronization is one of the critical issues for wireless communications. In this paper, we present low-complexity joint timing and carrier frequency offsets synchronization algorithms for filter-bank multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) systems by exploiting two uncorrelated consecutive real training symbols based on ...
Hyunwoo Cho, Xiaoli Ma
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A new type of comb pilot in FBMC/OQAM
2018 IEEE Wireless Communications and Networking Conference (WCNC), 2018Scattered pilot-aided channel estimation in offset QAM-based filter bank multicarrier (FBMC/OQAM) systems has so far been only considered for slow fading channels. In more demanding scenarios, the classical auxiliary pilot (AP) idea has been shown to result a severe error.
Chunling Hao +3 more
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FBMC/OQAM equalization: Exploiting the imaginary interference
2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC), 2012Filter bank based multicarrier (FBMC) modulations have recently gained a great interest. Indeed, when coupled with an Offset QAM (OQAM) coding on each sub-carrier, FBMC/OQAM can reach the maximum Nyquist rate and provide a compact spectrum. However, as with this modulation scheme no cyclic prefix is used, equalizers more efficient than a simple 1-tap ...
Gaëtan Ndo, Hao Lin, Pierre Siohan
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Synchronization Sequence Design for FBMC/OQAM Systems
IEEE Transactions on Wireless Communications, 2016In this paper, we propose a new sequence generation methodology to make a constant amplitude zero autocorrelation (CAZAC) preamble available in offset Quadrature Amplitude Modulation-based filter bank multicarrier (FBMC) synchronization. The role of the new sequence is to compensate the filtering and symbol overlap of the FBMC structure so as to ...
Wonsuk Chung +3 more
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Enabling Low-Complexity MIMO in FBMC-OQAM
2016 IEEE Globecom Workshops (GC Wkshps), 2016Filter Bank Multi-Carrier (FBMC) offers superior spectral properties compared to Orthogonal Frequency Division Multiplexing (OFDM), at the cost of imaginary interference, which makes the application of Multiple-Input and Multiple-Output (MIMO) more challenging.
Ronald Nissel, Markus Rupp
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Efficient multitap equalization for FBMC‐OQAM systems
Transactions on Emerging Telecommunications Technologies, 2019AbstractThis work provides a simple yet efficient multitap equalization structure for filter bank multicarrier systems, which is a candidate waveform for the next generation (5G) of mobile communication systems. More specifically, we analyze the system performance under medium‐ to high‐frequency selective channels.
David William Marques Guerra +1 more
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A suboptimal power allocation algorithm for FBMC/OQAM
2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2012This paper tackles the sum-rate maximization in FBMC systems. It is well-known that multipath fading destroys the orthogonality of the subcarriers, which brings a non-convex problem that can be interpreted as the maximization of a difference of concave functions.
Màrius Caus, Ana I. Pérez-Neira
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