On the Waveform for 5G

This paper presents an extensive and fair comparison among the most promising waveform contenders for the 5G air interface. The considered waveform contenders, namely filter-bank multi-carrier (FBMC), universal-filtered multi-carrier (UFMC), generalized frequency-division multiplexing (GFDM) and resource-block filtered orthogonal frequency-division multiplexing (RB-F-OFDM) are compared to OFDM used in 4G in terms of spectral efficiency, numerical complexity, robustness towards multi-user interference (MUI) and resilience to power amplifier non-linearity. FBMC shows the best spectral containment and reveals to be almost insensitive to multi-user interference. It however suffers from its bad spectral efficiency for short bursts and from its poor multiple input multiple output (MIMO) compatibility. GFDM reveals to be the most promising contender, with the best spectral efficiency and the smallest complexity overhead compared to OFDM. It is also the most resilient to multi-user interference after FBMC and is MIMO compatible as soon as the interference can be managed. UFMC and RB-F-OFDM are finally the closest to OFDM and benefit therefore from a better compatibility with existing systems, even if their performance is generally lower than FBMC and GFDM.

show abstract

“…OBO (dB) = 10 log 10 P sig P sat (20) where P sat is the saturating power of the PA and P sig is the mean power of the transmitted signal.…”

Section: Performance Metricsmentioning

confidence: 99%

“…Paper [20] also recently proposed an overview of FBMC, GFDM and UFMC. It additionally includes F-OFDM in the comparison and recommends the latter waveform for 5G.…”

Section: Introductionmentioning

confidence: 99%

Performance of emerging multi-carrier waveforms for 5G asynchronous communications

Eeckhaute

Bourdoux

Doncker

et al. 2017

J Wireless Com Network

View full text Add to dashboard Cite

show abstract

“…As can be seen, the OFDM technique is omnipresent in the 5G waveform proposals. The OFDM technique shall certainly remain as the root framework for the new 5G waveform design, with some optimization to support the new 5G requirements [18,19]. This paper makes use of the complex -fading channel to assess the bit error rate (BER) performance of a BPSKbased OFDM system.…”

Section: International Journal Of Antennas and Propagationmentioning

confidence: 99%

The Complexα-μFading Channel with OFDM Application

Freitas¹,

Bomfin²,

Souza³

et al. 2017

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

The aims of this paper are threefold: (i) to present a model for the complex -fading channel; (ii) to propose an efficient, simple, and general method to generate complex -samples; (iii) to make use of this channel in order to assess the bit error rate performance of an OFDM system. An analytical framework is then used, whose output is validated through Monte Carlo simulation. Several important conclusions concerning the system performance as a function of the channel parameters, namely, nonlinearity, clustering, and power imbalance of in-phase and quadrature components, are drawn.

show abstract

“…This work addresses the harmonization of the AI physical layer and, more specifically, of the main 5G multicarrier waveform candidates that have been subject of extensive research in the last years [5]. Apart from the well-known cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) waveform, present in current cellular standards, many other multicarrier waveforms have been already identified as promising for the 5G use cases, such as the ones based on filter banks [6].…”

Section: Introductionmentioning

confidence: 99%

Multicarrier Waveform Harmonization and Complexity Analysis for an Efficient 5G Air Interface Implementation

García‐Roger

Roger

Valgas

et al. 2017

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

The coexistence of multiple air interface variants in the upcoming fifth generation (5G) wireless technology remains a matter of ongoing discussion. This paper focuses on the physical layer of the 5G air interface and provides a harmonization solution for the joint implementation of several multicarrier waveform candidates. Waveforms based either on cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) or on filter bank multicarrier (FBMC) are first presented through a harmonized system model. Complexity comparisons among five different waveforms are provided. Then, the complexity of a proposed configurable hardware implementation setup for waveform transmission and reception is evaluated. As a result, the harmonized transmitter and receiver exhibit 25-40% and 15-25% less complexity in floating-point operations, respectively, in comparison to two standalone implementations of the most complex waveform instances of the CP-OFDM and FBMC families. This highlights the similarities between both families and illustrates the component reuse advantages associated with the proposed harmonized solution.

show abstract

On the Waveform for 5G

Cited by 146 publications

References 4 publications

Performance of emerging multi-carrier waveforms for 5G asynchronous communications

Performance of emerging multi-carrier waveforms for 5G asynchronous communications

The Complexα-μFading Channel with OFDM Application

Multicarrier Waveform Harmonization and Complexity Analysis for an Efficient 5G Air Interface Implementation

Contact Info

Product

Resources

About