Abstract
The 5G and beyond future wireless networks aim to support a large variety of services with increasing demand in terms of data rate and throughput while providing a higher degree of reliability, keeping the overall system complexity affordable. One of the key aspects regarding the physical layer architecture of such systems is the definition of the waveform to be used in the air interface. Such waveforms must be studied and compared in order to choose the most suitable and capable of providing the 5G and beyond services requirements, with flexible resource allocation in time and frequency domains, while providing high spectral and power efficiencies. In this paper, several beyond 5G waveforms candidates are presented, along with their transceiver architectures. Additionally, the associated advantages and disadvantages regarding the use of these transmission techniques are discussed. They are compared in a similar downlink transmission scenario where three main key performance indicators (KPIs) are evaluated. They are the peak-to-average power ratio, the overall system spectral efficiency (wherein the out of band emissions are measured, along with the spectral confinement of the power spectral density of the transmitted signals) and the bit error rate performance. Additionally, other KPIs are discussed.
Highlights
Over the past recent years, the fifth generation (5G) of wireless communication systems and networks has been researched, engineered and deployed
We perform a comparison between the candidate waveforms mentioned in previous section, regarding the peak-to-average power ratio (PAPR) and power spectral density (PSD)/spectral efficiency of the transmitted signal, BER performance and implementation complexity
For the TIBWB-Orthogonal Frequency Division Multiplexing (OFDM) with and without windowing time overlapping (WTO) cases we consider that OFDM component sub-symbols with N = 64 sub-carriers and the number of packed OFDM blocks per TIBWB-OFDM block is Ns = 42
Summary
Over the past recent years, the fifth generation (5G) of wireless communication systems and networks has been researched, engineered and deployed. 5G and beyond generations are envisioned to improve major key performance indicators (KPIs), including data rates, spectral efficiency, power consumption, transceiver complexity, connection density, latency, and mobility [4,5]. This can be done by exploring different methods for achieving a higher capacity of exchanging information with enhanced coverage potential, reliability and availability [2,6]. The URLLC implies a high reliability upon the transmission of a packet from the transmitter to the receiver, i.e., with a low probability of error (1 packet loss out of 100 million packet), no mobility interruption time and less than 1 ms latency [9]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
