Multi-user time-reversal STC-GFDMA for future wireless networks

Matthé, Maximilian; Mendes, Luciano Leonel; Gaspar, Ivan; Michailow, Nicola; Zhang, Dan; Fettweis, Gerhard

doi:10.1186/s13638-015-0366-6

Cited by 26 publications

(24 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, most synchronization algorithms developed for OFDM remain applicable to the GFDM waveform. The paper [43] in our special issue demonstrates how space time coding can be combined with the GFDM waveform in the multi-antenna wireless system while still allowing flexible resource sharing among users by using wireless scheduling.…”

Section: Waveform Design For 5g Wireless Systemsmentioning

confidence: 99%

Enabling 5G mobile wireless technologies

Lau

Jorswieck

et al. 2015

J Wireless Com Network

View full text Add to dashboard Cite

Research on 5G mobile wireless technologies has been very active in both academia and industry in the past few years. While there has been certain consensus on the overall requirements of 5G wireless systems (e.g., in data rate, network capacity, delay), various enabling wireless technologies have been considered and studied to achieve these performance targets. It has been quite clear, however, that there would be no single enabling technology that can achieve all diverse and even conflicting 5G requirements. In general, many fundamental changes and innovations to re-engineer the overall network architecture and algorithms in different layers and to exploit new system degrees of freedom would be needed for the future 5G wireless system. In particular, we may need to consider other potential waveform candidates that can overcome limitations of the orthogonal frequency multiple access (OFDM) waveform employed in the current 4G system, develop disruptive technologies to fulfill 5G rate and capacity requirements including network densification, employment of large-scale (massive) multiple input multiple output (MIMO), and exploitation of the millimeter wave (mmWave) spectrum to attain Gigabit communications. In addition, design tools from the computer networking domain including software defined networking, virtualization, and cloud computing are expected to play important roles in defining the more flexible, intelligent, and efficient 5G network architecture. This paper aims at describing key 5G enabling wireless mobile technologies and discussing their potentials and open research challenges. We also present how papers published in our special issue contribute to the developments of these disruptive 5G technologies.

show abstract

Section: Waveform Design For 5g Wireless Systemsmentioning

confidence: 99%

Enabling 5G mobile wireless technologies

Lau

Jorswieck

et al. 2015

J Wireless Com Network

View full text Add to dashboard Cite

show abstract

“…TR-STC was initially developed for single-carrier systems, where two subsequent time domain codewords are decoupled by a CP and jointly space-time encoded. For GFDM, one block is treated as a single-carrier codeword and the TR-STC is applied onto two subsequent GFDM blocks [9]. At the receiver, both GFDM blocks are recovered by the TR-STC and processed by the GFDM detector.…”

Section: Application Of Cr-oqam In Gfdmmentioning

confidence: 99%

“…The theoretic equations for GFDM/QAM are taken from [9]. Note that as GFDM/(CR-)OQAM is orthogonal, it performs equal to OFDM/OQAM, and the corresponding equations are also taken from ( [9], Eq.…”

Section: Performance Evaluationmentioning

confidence: 99%

“…We provide analysis regarding spectral and peakto-average power ratio (PAPR) properties for this new waveform and compare them with the existing systems. Additionally, time-reversal space-time coding (TR-STC) [9] is applied to GFDM/CR-OQAM to exploit multiantenna diversity, showing that in GFDM, STC can be easily combined with OQAM modulation. For the timecontinuous OFDM/OQAM, several methods for application of STC have been proposed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Conjugate root offset-QAM for orthogonal multicarrier transmission

Matthé

Fettweis

2016

EURASIP J. Adv. Signal Process.

Self Cite

View full text Add to dashboard Cite

Current implementations of orthogonal frequency-division multiplexing (OFDM)/offset quadrature amplitude modulation (OQAM) are restricted to band-limited symmetric filters. To circumvent this, non-symmetric conjugate root (CR) filters are proposed for OQAM modulation. The idea is applied to Generalized Frequency Division Multiplexing (GFDM) and a method for achieving transmit diversity with OQAM modulation is presented. The proposal reduces implementation complexity compared to standard OQAM by modifying the transmit phase space which is exploited by a real-valued fast Fourier transform (FFT) operation. Generalized frequency division multiplexing (GFDM)/CR-OQAM outperforms conventional GFDM using QAM modulation in terms of symbol error rate in fading multipath channels and provides a more localized spectrum compared to GFDM/OQAM.

show abstract

“…S RB is the number of [24] can be applied on groups of GFDM symbols, in order to achieve transmit diversity. The data frame proposed in this paper allows for adjusting the number of preambles that are transmitted by each antenna.…”

Section: Gfdm Modelmentioning

confidence: 99%

GFDM Frame Design for 5G Application Scenarios

Ferreira

Rodrigues

González

et al. 2017

JCIS

Self Cite

View full text Add to dashboard Cite

Abstract-The services foreseen for 5G networks will demand a vast number of challenging requirements to be fulfilled by the physical layer. These services can be grouped into application scenarios, each one with a key requirement to be addressed by the 5G network. A flexible waveform associated with a appropriate data frame is an essential feature in order to guarantee the support of contrasting requirements from different application scenarios such as Enhanced Mobile Broadband, Internet of Things, Tactile Internet and Internet Access for Remote Areas. In this paper, we propose a flexible data frame based on Generalized Frequency Division Multiplexing (GFDM) that can be tailored to address the specific key requirements of the different 5G scenarios. The paper also presents the physical layer parametrization that can be used for each application.

show abstract

Multi-user time-reversal STC-GFDMA for future wireless networks

Cited by 26 publications

References 10 publications

Enabling 5G mobile wireless technologies

Enabling 5G mobile wireless technologies

Conjugate root offset-QAM for orthogonal multicarrier transmission

GFDM Frame Design for 5G Application Scenarios

Contact Info

Product

Resources

About