The PAPR Problem in OFDM Transmission: New Directions for a Long-Lasting Problem

Wunder, Gerhard; Fischer, Robert F. H.; Boche, Holger; Litsyn, Simon; No, Jong-Seon

doi:10.1109/msp.2012.2218138

Cited by 203 publications

(109 citation statements)

References 83 publications

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“…In practice, each codeword entry x k must obey a given peakpower constraint to avoid distortions due to nonlinearities and saturation effects at the high-power amplifier [26]. To account for this and obtain capacity results that are more relevant in practice, in this paper we substitute (7) with the more stringent peak-power constraint…”

Section: Peak-amplitude Constraintmentioning

confidence: 99%

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Capacity Bounds for MIMO Microwave Backhaul Links Affected by Phase Noise

Durisi

Tarable

Camarda

et al. 2014

IEEE Trans. Commun.

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Abstract-We present bounds and a closed-form high-SNR expression for the capacity of multiple-antenna systems affected by Wiener phase noise. Our results are developed for the scenario where a single oscillator drives all the radio-frequency circuitries at each transceiver (common oscillator setup), the input signal is subject to a peak-power constraint, and the channel matrix is deterministic. This scenario is relevant for line-of-sight multipleantenna microwave backhaul links with sufficiently small antenna spacing at the transceivers. For the 2×2 multiple-antenna case, for a Wiener phase-noise process with standard deviation equal to 6• , and at the medium/high SNR values at which microwave backhaul links operate, the upper bound reported in the paper exhibits a 3 dB gap from a lower bound obtained using 64-QAM. Furthermore, in this SNR regime the closed-form high-SNR expression is shown to be accurate.

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Section: Peak-amplitude Constraintmentioning

confidence: 99%

“…We next upper-bound the first term on the RHS of (26), which corresponds to the mutual information of a memoryless phasenoise channel with uniform phase noise using a method similar to the one used in [12], [13]. Specifically, we use the duality approach [31, Th.…”

Section: The Unitary Case a Capacity Upper Boundmentioning

confidence: 99%

Capacity Bounds for MIMO Microwave Backhaul Links Affected by Phase Noise

Durisi

Tarable

Camarda

et al. 2014

IEEE Trans. Commun.

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“…These problems can be solve by increasing the number of transmitter antenna and receiver antenna but it takes more cost. With the intention of solving the above problem with cost efficiency, we plan to incorporate the OSTBC, ZCT With the intention of reducing the PAPR in OFDM, the subcarriers signals are added through inverse fast Fourier transform (IFFT) operation which helps to increase the performance of high-power amplifier (HPA) at the transmitter [5,6] [7]. There are many techniques used to reduce the PAPR of MIMO-OFDM system that are Clipping and filtering [8], Partial transient sequence (PTS) [9], Selected mapping(SLM) [10], Zadoff-Chu transform (ZCT) [11].…”

Section: Introductionmentioning

confidence: 99%

Channel Estimation Using EKF - ZCT Based Orthogonal STBC MIMO OFDM System

2017

International Journal of Research Studies in Computer Science a

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Multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM)transmission can improve both the transmission capacity and performance due to diversity gain. However, one of the major drawback of MIMO-OFDM have high peak-to average power ratio (PAPR) in order to the signals transmitted on different antennas. The transmitted bits must be channel-encoded as they are particularly critical to the performance of the considered OFDM system. Consequently, this channel encoding highly increases the system complexity and decreases the transmission data rate. These two problems are subjected to transmitter diversity that can overcome by incorporating orthogonal space-time block coded (OSTBC) and Zadoff-Chu Transform (ZCT) with the MIMO-OFDM. Moreover, the receiver diversity is can be improved using of Extended Kalman Filter (EKF). By enhancing the transmitter diversity and receiver diversity

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“…However, the transmitter design for these techniques can be particularly challenging, especially for systems requiring high power and spectral efficiencies. In fact, the filtering associated to typical modulations with high spectral efficiency leads to signals with high peak-toaverage power ratio (PAPR) [3], which leads to amplification difficulties.…”

Section: Introductionmentioning

confidence: 99%

Boosting LINC systems combiners efficiency through ring-type magnitude modulation

Castanheira

Simioes

Gomes

et al. 2017

2017 25th European Signal Processing Conference (EUSIPCO)

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Abstract-This paper proposes a transmitter structure that combines a ring-type magnitude modulation (RMM) technique with a linear amplification with nonlinear components (LINC) scheme for power and spectrally efficient transmission based on bandwidth limited OQPSK signals, for either a linear combiner (LC) or a Chireix combiner (CC). It shows that by controlling the transmitted signal's envelope through RMM, the range of the LINC decomposition angle is considerably decreased. This significantly improves LC's power efficiency, and substantially reduces CC's spectral leakage while maintaining its high amplification efficiency.

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The PAPR Problem in OFDM Transmission: New Directions for a Long-Lasting Problem

Cited by 203 publications

References 83 publications

Capacity Bounds for MIMO Microwave Backhaul Links Affected by Phase Noise

Capacity Bounds for MIMO Microwave Backhaul Links Affected by Phase Noise

Channel Estimation Using EKF - ZCT Based Orthogonal STBC MIMO OFDM System

Boosting LINC systems combiners efficiency through ring-type magnitude modulation

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