MIMO Signal Processing in Offset-QAM Based Filter Bank Multicarrier Systems

Pérez-Neira, Ana I.; Caus, Màrius; Zakaria, Rostom; Ruyet, Didier Le; Kofidis, Eleftherios; Haardt, Martin; Mestre, Xavier; Cheng, Yao

doi:10.1109/tsp.2016.2580535

Cited by 106 publications

(71 citation statements)

References 101 publications

(184 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Indeed, MIMO can exacerbate detection errors in the FBMC/OQAM signal, and existing equalization methods do not eliminate this interference, severely impairing the MIMO FBMC/OQAM signal. Therefore, to fully utilize the whole functionality of MIMO, it is necessary to remove interference using more efficient methods rather than the existing pre‐ and post‐processing techniques, including equalization . Yet, there is a lack of research considering the complete elimination of multipath interference with a corresponding performance analysis.…”

Section: Related Workmentioning

confidence: 99%

“…Filter banks with CP have simpler equalization but also suffer from significant spectral loss as a result of CP introduction. Therefore, in terms of spectral efficiency, it is more than reasonable to adopt the FBMC/OQAM without CP, which modulates real‐valued samples after OQAM staggering by pulse shaping and provides robustness to time and frequency dispersions …”

Section: Introductionmentioning

confidence: 99%

“…Owing to the increase in the symbol duration by the factor of K , the effect of multipath interference in FBMC/OQAM is negligible in a mild frequency‐selective channel. Hence, the application of pulse shaping filters in FBMC/OQAM sets it free from a redundant CP and provides small side lobes with low levels of OOB emission, high spectral efficiency, and robustness to timing and frequency misalignments …”

Section: Introductionmentioning

confidence: 99%

“…2,[5][6][7][8] Among FBMC modulation types, the most spectrally efficient one is based on offset quadrature amplitude modulation (FBMC/OQAM) which does not exploit CP. 9,10 Besides the FBMC/OQAM, there are alternative filter bank modulations such as FBMC based on quadrature amplitude modulation (QAM), also known as filtered multitone (FMT), and filter banks that rely on CP. 2 The FMT modulates complex QAM symbols, making the modulation process very similar to OFDM.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Improved FBMC/OQAM uplink performance using an antenna array in a highly frequency selective fading channel

Kim

Ahn

Kim

et al. 2019

Micro & Optical Tech Letters

View full text Add to dashboard Cite

Filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is an attractive alternative to orthogonal frequency division multiplexing, as it yields a higher spectral efficiency and robustness to frequency dispersion; however, FBMC/OQAM suffers from multipath interference owing to the absence of the cyclic prefix, especially in the signal environments of widely spread multipaths. Although conventional techniques such as multiple‐input multiple‐output along with equalization can combat multipath fading, these techniques do not effectively resolve the multipath interference unless each subcarrier channel can be assumed to be of a flat fading. This article presents a systematic procedure of applying a receive antenna array to FBMC/OQAM systems that removes the multipath interferences using a nicely‐shaped beam pattern for each of the multipaths associated with a severe frequency selectivity. The performance of the proposed array system has been demonstrated in terms of its bit error rate in the adverse multipath‐spread environment of the Extended Typical Urban model of the 3rd Generation Partnership Project, in which each subcarrier channel suffers from a severe frequency‐selective fading. Using various computer simulations, we found that the proposed array system can completely resolve multipath interferences with an array of N = 10, 16, and 22 when Δθ = 15°, 10°, and 5°, respectively, where N and Δθ denote the number of antennas in each subarray and the interpath direction of arrival difference, respectively. In addition, the proposed array system also provides a signal‐to‐noise ratio gain that is proportional to N, once the multipath interferences are successfully resolved.

show abstract

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improved FBMC/OQAM uplink performance using an antenna array in a highly frequency selective fading channel

Kim

Ahn

Kim

et al. 2019

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…46 Considering R m (n) for m = 0,1,…,N − 1, (5) can be written in matrix form as Further simplification is done by assuming channel to be flat within the bandwidth of h 0 (n).…”

Section: System Modelmentioning

confidence: 99%

Sensitivity of filter bank SCFDMA to carrier frequency offset and its compensation using firefly algorithm

Ali

2018

Int J Communication

View full text Add to dashboard Cite

This paper proposes an efficient wireless uplink strategy named filter bank single carrier frequency division multiple access. The proposed system combines the low peak-to-average power ratio of precoded orthogonal frequency division multiple access with the reduced out-of-band emission of filter bank multicarrier scheme. We present a complete mathematical analysis of the proposed model and derive the conditions to be fulfilled by the transmit filter for perfect data recovery. We further introduce a transmit filter design to enhance the peak-to-average power ratio and out-of-band emission characteristics of the proposed system. This paper also analyzes the sensitivity of the filter bank single carrier frequency division multiple access system to carrier frequency offset (CFO) and suggests a low complexity interference compensation scheme, under the assumption of perfect knowledge of CFO at the receiver. Later on, the assumption on CFO parameter is removed, and a blind interference compensation technique based on firefly algorithm is developed. Finally, a detailed simulation study is performed to substantiate the effectiveness of the proposed methods.KEYWORDS carrier frequency offset, filter bank multicarrier, firefly algorithm, out-of-band emission, peak-toaverage power ratio, precoded OFDMA

show abstract

References

2017

Advanced Multicarrier Technologies for Future Radio Communication

View full text Add to dashboard Cite

MIMO Signal Processing in Offset-QAM Based Filter Bank Multicarrier Systems

Cited by 106 publications

References 101 publications

Improved FBMC/OQAM uplink performance using an antenna array in a highly frequency selective fading channel

Improved FBMC/OQAM uplink performance using an antenna array in a highly frequency selective fading channel

Sensitivity of filter bank SCFDMA to carrier frequency offset and its compensation using firefly algorithm

References

Contact Info

Product

Resources

About