PAPR reduction by pulse shaping using Nyquist linear combination pulses

Azurdia-Meza, César A.; Lee, Kyujin; Lee, Kyesan

doi:10.1587/elex.9.1534

Cited by 20 publications

(16 citation statements)

References 14 publications

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“…For the different systems implemented, 10 5 uniform random symbol blocks were generated. Applying the criteria in [7,9], and [8], the PAPR of the the pulse shaping filter was measured and analyzed. After calculating the PAPR of each block, the Roll-off factor α = 0.22…”

Section: Papr Analysis Of the Proposed Systemmentioning

confidence: 99%

Bottom-layer solutions for 60 GHz millimeter-wave wireless networks: modulation and multiplexing access techniques

Estevez¹,

Azurdia²

2015

Telecommun Syst

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Wireless technologies are an essential communication means that transform a branched localized fixed meshwork into a ubiquitous disconnected network. A clear trend shows that cells are becoming smaller, homogeneously distributed, operating at higher carrier frequencies, and more energy conscious. This points toward wireless picocell systems that implement millimeter-wave (mm-wave) modulation. In this work various techniques are proposed, which are oriented to specific traits of the 60-GHz mm-wave band. Two techniques oriented to solve physical and data-link layer issues are proposed. Single carrier frequency division multiple access (SC-FDMA) is proposed as the technology to be implemented at the physical layer, and a variable slot time multiplexing access technique, called variable slot time-time division multiple access (VST-TDMA), with a conscious energy-conservation protocol, is proposed for the data-link (MAC) layer. SC-FDMA with pulse shaping is implemented to minimize the peak-to-average power ratio of the system, which reduces energy consumption. The multiplexing access technique takes advantage of the reduced cell size by multiplexing data in the time domain, this allows the reduced number of users to utilize the entire available bandwidth. Incorporated into the access protocol is the option of energy pacing or even self-sustainability if an energy harvesting device is present. Self-sustainability can be achieved at the cost off throughput, some techniques are discussed to relieve this trade-off condition. Also, a thorough discussion is included on battery energy depletion, even with an energy harvesting device present, to further increase the through- put performance. Since using SC-FDMA reduces the energy consumption, it enables VST-TDMA to operate at higher speeds under self-sustainability mode. Overall the proposed set of solutions showed independently significant improvements to the system. It is also discussed how these techniques coalesce conveniently by working in unison, improving the energy efficiency and throughput capabilities of 60-GHz systems.Keywords 60 GHz · Energy self-sustainability · Millimeter-wave · Peak-to-average power ratio (PAPR) · Single carrier frequency division multiple access (SC-FDMA) · Variable slot time-time division multiple access (VST-TDMA)

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Section: Papr Analysis Of the Proposed Systemmentioning

confidence: 99%

Bottom-layer solutions for 60 GHz millimeter-wave wireless networks: modulation and multiplexing access techniques

Estevez¹,

Azurdia²

2015

Telecommun Syst

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“…To overcome the issue of a peak cancellation failure, an alternative implementation scheme [29], which we refer to as scheme 2, can be applied. Let us rewrite Equation 3 as: …”

Section: Conventional Implementation: Schemementioning

confidence: 99%

A low-complexity peak cancellation scheme and its FPGA implementation for peak-to-average power ratio reduction

Song

Ochiai

2015

J Wireless Com Network

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The power amplifier (PA) is the most power-hungry component in a wireless base station transmitter, and reducing the peak-to-average power ratio (PAPR) of wireless signals is an important issue for its effective use. In this paper, we focus on a field-programmable gate array (FPGA) implementation of the peak cancellation (PC) technique, which is known as the simplest method for PAPR reduction. The design issue of effective peak-cancelling pulses under the constraint on the out-of-band emission is addressed. In order to reduce its hardware complexity, a novel approach for generating peak-cancelling pulses is also presented. The experimental results based on long-term evolution (LTE)/LTE-Advanced and multi-band Wideband Code Division Multiple Access (WCDMA) signals demonstrate the validity of the proposed scheme. It has been shown that the proposed PC scheme can achieve lower in-band distortion than the conventional PC with an acceptable loss in out-of-band performance. Our study also includes mapping the signal processing methods onto a Xilinx virtex-7 FPGA device running at 245.76 MHz and addresses the resource utilization and the hardware design in detail.

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“…The prior implies that the undesired effects of jitter will be diminished, and the optimum PLCP will be less sensitive to timing errors, resulting in a lower BER [3,[7][8][9][10][11]. Further, PAPR reduction can be achieved by minimizing the amplitudes of the two largest sidelobes [12,15,16]. It can be seen that the optimum PLCP has basically the same impulse response as the optimum LCP pulse.…”

Section: Nyquist Parametric Linear Combination Pulsesmentioning

confidence: 99%

Evaluation of ISI-Free Parametric Linear Combination Pulses in Digital Communication Systems

Azurdia-Meza

2015

Wireless Pers Commun

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Artículo de publicación ISIDigital communication systems are characterized by having a filter at the transmitter and receiver sides to band limit the transmitted signals and diminish the effects to intersymbol interference (ISI). The optimum parametric linear combination pulse is evaluated at the transmitter and receiver sides by using different evaluation tools. The proposed pulse is evaluated in terms of the bit error rate in the presence of symbol-timing errors. Eye diagrams are presented to visually evaluate the susceptibility of the transmission system to ISI, and the maximum distortion is determined as a numerical measure of performance.Program U-INICIA VID, University of Chile UI-02/201

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PAPR reduction by pulse shaping using Nyquist linear combination pulses

Cited by 20 publications

References 14 publications

Bottom-layer solutions for 60 GHz millimeter-wave wireless networks: modulation and multiplexing access techniques

Bottom-layer solutions for 60 GHz millimeter-wave wireless networks: modulation and multiplexing access techniques

A low-complexity peak cancellation scheme and its FPGA implementation for peak-to-average power ratio reduction

Evaluation of ISI-Free Parametric Linear Combination Pulses in Digital Communication Systems

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