Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Selahattin Gokceli"'
Autor:
Selahattin Gokceli, Toni Levanen, Taneli Riihonen, Juha Yli-Kaakinen, Alberto Brihuega, Matias Turunen, Markku Renfors, Mikko Valkama
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 2, Pp 48-66 (2021)
The physical-layer radio access of 5G New Radio (NR) and other modern wireless networks builds on the cyclic prefix (CP) orthogonal frequency-division multiplexing (OFDM), known to suffer from the high peak-to-average power ratio (PAPR) challenge. In
Externí odkaz:
https://doaj.org/article/f5e559013375463497f3e35c28f97d38
Autor:
Selahattin Gokceli, Pablo Pascual Campo, Toni Levanen, Juha Yli-Kaakinen, Matias Turunen, Markus Allen, Taneli Riihonen, Arto Palin, Markku Renfors, Mikko Valkama
Publikováno v:
IEEE Access, Vol 8, Pp 89946-89963 (2020)
In wireless communications, higher transmission power enables higher coverage or higher data rate. However, due to hardware limitations, achieving high power efficiency becomes challenging. The main issue is that at high power region close to power a
Externí odkaz:
https://doaj.org/article/80bf71efcc3a48658320c17f24208f84
Publikováno v:
IEEE Access, Vol 6, Pp 14842-14856 (2018)
Orthogonal frequency division multiplexing (OFDM) technique is the most used approach in various wireless communication technologies due to its implementation advantages. However, OFDM has also some significant drawbacks, such as the sensitivity agai
Externí odkaz:
https://doaj.org/article/3c7518fe6b4441759922d9e7a1991f12
Publikováno v:
IEEE Access, Vol 5, Pp 25463-25473 (2017)
Orthogonal frequency division multiplexing (OFDM) with index modulation (OFDM-IM) technique has been recently proposed to provide performance improvements over conventional OFDM. OFDM-IM includes a different data transmission mechanism, where additio
Externí odkaz:
https://doaj.org/article/8e4f18fc6681483b9c2db53e29933bfb
Publikováno v:
Journal of Computer Networks and Communications, Vol 2017 (2017)
With the development of sensor technologies, various application areas have emerged. The usage of these technologies and exploitation of recent improvements have clear benefits on building applications. Such use-cases can improve smart functions of b
Externí odkaz:
https://doaj.org/article/9d0ddf405d4c4516a32014b9f8ecbfa8
Publikováno v:
IEEE Transactions on Vehicular Technology. 72:5378-5383
Frequency-selective peak-to-average power ratio (PAPR) reduction is essential in networks such as 5 G New Radio (NR) that support frequency-domain multiplexing of users and services. However, stemming from the frequency-selective shaping of the invol
Autor:
Mikko Valkama, Kari Pajukoski, Esa Tiirola, Ismael Peruga, Selahattin Gokceli, Taneli Riihonen
Publikováno v:
IEEE Wireless Communications Letters. 10:2130-2134
In this paper, a novel guard-tone reservation (GTR) method is proposed to reduce the peak-to-average power ratio (PAPR) of discrete Fourier transform-spread-orthogonal frequency-division multiplexing (DFT-s-OFDM) waveform. Unlike existing PAPR reduct
Publikováno v:
IEEE Transactions on Vehicular Technology. 68:6167-6171
We study the peak-to-average power ratio (PAPR) problem in orthogonal frequency-division multiplexing (OFDM) systems. In conventional clipping and filtering based PAPR reduction techniques, clipping noise is allowed to spread over the whole active pa
Publikováno v:
IEEE Access, Vol 6, Pp 14842-14856 (2018)
Orthogonal frequency division multiplexing (OFDM) technique is the most used approach in various wireless communication technologies due to its implementation advantages. However, OFDM has also some significant drawbacks, such as the sensitivity agai
Publikováno v:
IEEE Access, Vol 5, Pp 25463-25473 (2017)
Orthogonal frequency division multiplexing (OFDM) with index modulation (OFDM-IM) technique has been recently proposed to provide performance improvements over conventional OFDM. OFDM-IM includes a different data transmission mechanism, where additio