Multiple RF Continuous-Wave generation using a single signal generator for carrier agrregation in LTE-advanced

Abyaneh, Mohammad Abdi; Kaissoine, Abdou; Huyart, B.; Cousin, Jean-Christophe

doi:10.1109/eumc.2014.6986668

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…One can generate several CW signals using the method given in [5]. By modulating these CW signals with the OFDM signal presented in section II, CA is achievable.…”

Section: Qpsk-ofdm Carrier Aggregationmentioning

confidence: 99%

“…Based on the Nyquist criterion, the sampling frequency fs should be at least twice the signal bandwidth, as shown in equation (5). (5) Where Llf = frfl. However, the bandwidth (B) of the OFDM signal is smaller than Llf, hence one should oversample the OFDM signal so that the two signals are sampled at the same sampling frequency.…”

Section: Qpsk-ofdm Carrier Aggregationmentioning

confidence: 99%

“…This equipment design increases the energy consumption and the production cost of the system. However a method to generate several Continuous Wave (CW) signals using a single signal generator is explained in [5]. It allows creating several LOs from one.…”

Section: Introductionmentioning

confidence: 99%

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QPSK-OFDM Carrier Aggregation using a single transmission chain

Abyaneh

Huyart

Cousin

2015

2015 IEEE MTT-S International Microwave Symposium

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To increase the data throughput in Radio Frequency (RF) communication, several coding techniques, different modulations and other secondary parameters can be improved, however the most important factor is the available bandwidth. Carrier Aggregation (CA) is the method proposed in the standardization of LTE-Advanced (LTE-A) by 3rd Generation Partnership Project (3GPP) in order to achieve up to 100 MHz of bandwidth. In this paper a method for generating carrier aggregated Orthogonal Frequency Division Multiplexed (OFDM) signals using a single transmitter chain is presented, moreover the demodulation results obtained by a Tri-Phase Demodulator (TPD) are presented.

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“…One can generate several CW signals using the method given in [5]. By modulating these CW signals with the OFDM signal presented in section II, CA is achievable.…”

Section: Qpsk-ofdm Carrier Aggregationmentioning

confidence: 99%

Section: Qpsk-ofdm Carrier Aggregationmentioning

confidence: 99%

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QPSK-OFDM Carrier Aggregation using a single transmission chain

Abyaneh

Huyart

Cousin

2015

2015 IEEE MTT-S International Microwave Symposium

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Carrier Aggregation of Three OFDM Signals Using a Single Oscillator and I/Q Modulator

Abyaneh¹,

Huyart²,

Cousin³

2017

IEEE Trans. Microwave Theory Techn.

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Non Contiguous Tri-band Receiver for Carrier Aggregation RF System

Kaissoine¹,

Huyart²

2016

ujcn

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The carrier aggregation technique will allow an increase of capacity of the 4 th Generation mobile communication networks (LTE-A: Long Term Evolution Advanced). The probability to find carriers that occupy a continuous spectrum in frequency is very low. The challenge is to demodulate an RF signal where the information is distributed on non-contiguous frequency bands. The technique presented in this paper concerns the mixing of n modulated carriers with n Continuous Wave (CW) signals by using a single three phase demodulator circuit. This technique allows reducing the conversion band of the Analog to Digital Converter (ADC) to 100 MHz. The principle is theoretically demonstrated for three non-contiguous carriers and validated by measurements results. The test was made for modulated carriers of 10 MHz or 15 MHz bandwidth by using the same QPSK modulation format or two different modulation formats (QPSK and 16-QAM). The demodulation performance is evaluated by measuring the Error Vector Magnitudes (EVM) of the transposed signals in baseband. This test shows that it is possible to demodulate a distributed non-contiguous multi-carriers RF signal in the band 2-3 GHz with a bit rate more than 300 Mbps.

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Multiple RF Continuous-Wave generation using a single signal generator for carrier agrregation in LTE-advanced

Cited by 3 publications

References 5 publications

QPSK-OFDM Carrier Aggregation using a single transmission chain

QPSK-OFDM Carrier Aggregation using a single transmission chain

Carrier Aggregation of Three OFDM Signals Using a Single Oscillator and I/Q Modulator

Non Contiguous Tri-band Receiver for Carrier Aggregation RF System

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