Wireless multicarrier communications

Wang, Zhendao; Giannakis, Georgios B.

doi:10.1109/79.841722

Cited by 1,063 publications

(21 citation statements)

References 54 publications

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“…In this way, we brake intentionally the time-domain orthogonality between consecutive f-OFDM symbols for lower OOBE. Consequently, asynchronous transmission between sub-band is now supported by f-OFDM [10].…”

Section: A Ufmc (Universal Filter Multicarrier)mentioning

confidence: 99%

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An Overview of Various Waveform Contenders Based on OFDM for 5G Communication

Vishnoi¹,

Gaur²,

Verma³

2018

IJTSRD

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The rollout of fifth generation(5G) wireless communication technology provides high spectral efficiency, high speed, greater density of users, high capacity, pseudo outdoor communication etc. In the year 2020, the data consumption is expected to increase 30% which cannot be supported by the current technologies such as 3G and 4G. The (4G) mobile communication uses Orthogonal Frequency Division Multiplexing (OFDM) technique in various systems like -Wi-MAX. Now as the technology is being advanced to 5G, there are some drawbacks of OFDM like -peak to average power ratio (PAPR), out of band emissions (OOB), and use of cyclic prefix (CP).In this paper, the drawbacks of Ofdm in Lte has been removed using the waveforms contenders like UFMC, FBMC, and GFDM overwhelmingly welcomed for the 5G air interface. applications of 5G are Internet of Things (IoT), Vehicle to Vehicle (V2V) communication, Machine to Any (M2X) communication.

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Section: A Ufmc (Universal Filter Multicarrier)mentioning

confidence: 99%

“…In order to have the clear vision of various techniques and technologies, its good have a comparison on the basis of performance and specifications [10].…”

Section: Comparisonmentioning

confidence: 99%

An Overview of Various Waveform Contenders Based on OFDM for 5G Communication

Vishnoi¹,

Gaur²,

Verma³

2018

IJTSRD

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“…In its frequency domain implementation [8], SC-FDMA is a precoded OFDMA transmission scheme, where precoding is done by means of a DFT. As in all cyclic-prefixed OFDMA-based systems, the system in the frequency domain [before passing through the inverse DFT (IDFT)] experiences an equivalent diagonal channel [14]. Therefore, it is after the DFT precoding that a transmit diversity precoding module must be inserted, in order to be able to correctly apply at subcarrier level space-time (ST) or spacefrequency (SF) block codes (BC) that were originally designed for narrowband channels.…”

Section: Transmit Diversity In Sc-fdmamentioning

confidence: 99%

Low PAPR space frequency block coding for multiuser MIMO SC-FDMA systems: specific issues for users with different spectral allocations

Ciochina

Mouat

Castelain

2011

EURASIP J. Adv. Signal Process.

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Single-carrier space frequency block coding (SC-SFBC) is an innovative mapping scheme suitable for implementing transmit diversity in single-carrier frequency division multiple access (SC-FDMA) systems. The main advantage of SC-SFBC is that it preserves the low envelope variations of SC-FDMA, which is particularly interesting for the uplink of wireless communications systems. In this article, we apply the SC-SFBC concept in a multiuser multiple-input multiple-output (MU-MIMO) scenario. We introduce a novel algorithm allowing the optimization of the parameters of SC-SFBC to enable low-complexity decoding at the receiver side and to maximize the overall spectral occupancy in MU-MIMO SC-FDMA systems, and we show the good performance of the proposed MU scheme.Keywords: SC-FDMA, transmit diversity, single-carrier space frequency block coding, multi-user MIMO, peak to average power ratio.

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“…This signal is transmitted at a sampling period T s , hence creating symbols with a duration T t = T s N t and a bandwidth F s = 1/T s . When transmitting s k over a time-varying channel and assuming a sufficiently long cyclic prefix, the received signal is [10]:…”

Section: Emulating High Speeds By Time Interpolationmentioning

confidence: 99%

Emulating extreme velocities of mobile LTE receivers in the downlink

Rodríguez-Piñeiro

Lerch

García-Naya

et al. 2015

J Wireless Com Network

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Long-Term Evolution (LTE) is expected to substitute the Global System for Mobile (GSM) Communications as the radio access technology for railway communications. Recently, considerable attention has been devoted to high-speed trains since this particular environment poses challenging problems in terms of performance simulation and measurement. In order to considerably decrease the cost and complexity of high-speed measurement campaigns, we have proposed a technique to induce effects caused by highly time-varying channels on Orthogonal FrequencyDivision Multiplexing (OFDM) signals while conducting measurements at low speeds. In this work, we illustrate the performance of this technique by comparing the results of LTE measurements at different velocities in a controlled measurement environment. Additionally, we validate this technique by means of simulations, considering one of the scenarios defined as part of the Winner Phase II Channel Models, specifically designed for high-speed train scenarios.

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Wireless multicarrier communications

Cited by 1,063 publications

References 54 publications

An Overview of Various Waveform Contenders Based on OFDM for 5G Communication

An Overview of Various Waveform Contenders Based on OFDM for 5G Communication

Low PAPR space frequency block coding for multiuser MIMO SC-FDMA systems: specific issues for users with different spectral allocations

Emulating extreme velocities of mobile LTE receivers in the downlink

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