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In this paper, we show bounds on Peak-to-Average Power Ratio (PAPR) and propose a method to reduce PAPR. These bounds are written in terms of moments of transmitted symbols. Further, we show some bounds in special cases and these special…

Information Theory · Computer Science 2019-09-17 Hirofumi Tsuda

We consider the problem of peak-to-average power ratio (PAPR) reduction in orthogonal frequency-division multiplexing (OFDM) based massive multiple-input multiple-output (MIMO) downlink systems. Specifically, given a set of symbol vectors…

Information Theory · Computer Science 2015-12-01 Hengyao Bao , Jun Fang , Zhi Chen , Hongbin Li , Shaoqian Li

The peak power problem in multicarrier waveforms is well-known and imposes substantial limitations on wireless communications. As the quest for investigation of enabling technologies for the next generation of wireless communication systems…

Information Theory · Computer Science 2016-04-12 Saeed Afrasiabi-Gorgani , Gerhard Wunder

Consider a wireless network of transmitter-receiver pairs where the transmitters adjust their powers to maintain a target SINR level in the presence of interference. In this paper, we analyze the optimal power vector that achieves this…

Information Theory · Computer Science 2014-01-16 Aris L. Moustakas , Panayotis Mertikopoulos , Nicholas Bambos

We consider the problem of peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems via optimized sparsification of tone reservation (TR). In particular, we propose a novel TR optimization…

Signal Processing · Electrical Eng. & Systems 2024-07-31 Getuar Rexhepi , Kengo Ando , Giuseppe Thadeu Freitas de Abreu

We study the peak-to-average power ratio (PAPR) problem in orthogonal frequency-division multiplexing (OFDM) systems. In conventional clipping and filtering based PAPR reduction techniques, clipping noise is allowed to spread over the whole…

Signal Processing · Electrical Eng. & Systems 2019-04-02 Selahattin Gökceli , Toni Levanen , Taneli Riihonen , Markku Renfors , Mikko Valkama

In tone reservation (TR) based OFDM systems, the peak to average power ratio (PAPR) reduction performance mainly depends on the selection of the peak reduction tone (PRT) set and the optimal target clipping level. Finding the optimal PRT…

Signal Processing · Electrical Eng. & Systems 2020-03-16 Yajun Wang , Wen Chen , Chintha Tellambura

This letter presents an improved peak cancellation (PC) scheme for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems. The main idea is based on a serial peak cancellation (SPC) mode…

Information Theory · Computer Science 2011-01-13 Lilin Dan , Yue Xiao , Wei NI , Shaoqian Li

We consider the issue of high peak-to-average-power ratio (PAPR) of Orthogonal time frequency space (OTFS) modulated signals. This paper proposes a low-complexity novel iterative PAPR reduction method which achieves a PAPR reduction of…

Information Theory · Computer Science 2025-01-22 Saurabh Prakash , Venkatesh Khammammetti , Saif Khan Mohammed

We present and analyze an algorithm designed for addressing vector-valued regression problems involving possibly infinite-dimensional input and output spaces. The algorithm is a randomized adaptation of reduced rank regression, a technique…

Machine Learning · Computer Science 2024-01-01 Giacomo Turri , Vladimir Kostic , Pietro Novelli , Massimiliano Pontil

This work establishes the design, analysis, and fine-tuning of a Peak-to-Average-Power-Ratio (PAPR) reducing system, based on compressed sensing at the receiver of a peak-reducing sparse clipper applied to an OFDM signal at the transmitter.…

Information Theory · Computer Science 2015-05-27 Ebrahim B. Al-Safadi , Tareq Y. Al-Naffouri

Orthogonal Frequency Division Multiplexing (OFDM) is an efficient method of data transmission for high speed communication systems. However, the main drawback of OFDM system is the high Peak to Average Power Ratio (PAPR) of the transmitted…

Networking and Internet Architecture · Computer Science 2012-05-11 Suverna Sengar , Partha Pratim Bhattacharya

Peak to average power ratio (PAPR) constrained power allocation in single carrier multiuser (MU) single-input multiple-output (SIMO) systems with iterative frequency domain (FD) soft cancelation (SC) minimum mean squared error (MMSE)…

Information Theory · Computer Science 2016-11-17 Valtteri Tervo , Antti Tölli , Juha Karjalainen , Tad Matsumoto

In this paper, the probability distribution of the peak to average power ratio (PAPR) is analyzed for the mixed numerologies transmission based on orthogonal frequency division multiplexing (OFDM). State of the art theoretical analysis…

Signal Processing · Electrical Eng. & Systems 2019-11-26 Xiaoran Liu , Lei Zhang , Jun Xiong , Xiaoying Zhang , Li Zhou , Jibo Wei

We consider the problem of peak-to-average power ratio (PAPR) reduction for orthogonal frequency-division multiplexing (OFDM) based large-scale multiple-input multipleoutput (MIMO) systems. A novel perturbation-assisted scheme is developed…

Information Theory · Computer Science 2016-07-12 Hengyao Bao , Jun Fang , Zhi Chen , Tao Jiang

OFDM signals demonstrates high fluctuations termed as Peak to Average Power Ratio (PAPR).The problem of OFDM is the frequent occurrence of high Peaks in the time domain signal which in turn reduces the efficiency of transmit high power…

Information Theory · Computer Science 2014-02-11 Smita Jolania , Sandeep Toshniwal

Given a sample covariance matrix, we examine the problem of maximizing the variance explained by a linear combination of the input variables while constraining the number of nonzero coefficients in this combination. This is known as sparse…

Optimization and Control · Mathematics 2010-12-24 Youwei Zhang , Alexandre d'Aspremont , Laurent El Ghaoui

The OFDM waveform exhibits high fluctuation in the signal envelope which causes distortion in the nonlinear power amplifier of the transmitter. Peak-to-Average Power Ratio (PAPR) and Cubic Metric (CM) are the common metrics to quantify the…

Information Theory · Computer Science 2020-03-26 Saeed Afrasiabi-Gorgani , Gerhard Wunder

Solving the generalized eigenvalue problem is a useful method for finding energy eigenstates of large quantum systems. It uses projection onto a set of basis states which are typically not orthogonal. One needs to invert a matrix whose…

Nuclear Theory · Physics 2023-04-05 Caleb Hicks , Dean Lee

High Peak to Average Power Ratio (PAPR) of the transmitted signal is a critical problem in multicarrier modulation systems (MCM) such as Orthogonal Frequency Division Multiplexing (OFDM), and Multi-Carrier Code Division Multiple Access (MC…

Networking and Internet Architecture · Computer Science 2012-04-18 B. Sarala , D. S. Venkateswarulu , B. N. Bhandari
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