Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals
Tongxin xuebao, 2015 Considering the drawbacks of the traditional companding transforms，an efficient companding scheme combined with iterative filtering was proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals.
Chao YANG, Yong WANG, Jian-hua GE
doaj +2 more sources
Companding technique for high dynamic range measurements using gafchromic films
, 2011 We propose a methodology to perform dose measurements using gafchromic films which can span several decades of dose levels. The technique is based on a rescaling approach using different films irradiated at different dose levels.
Battum +13 more
core +1 more source
Earth and Space Science, Volume 11, Issue 8, August 2024.Abstract The Terminal Tracking Camera (TTCam) imaging system on the NASA Lucy Discovery mission consists of a pair of cameras that are being used mainly as a navigation and target acquisition system for the mission's asteroid encounters. However, a secondary science‐focused function of the TTCam system is to provide wide‐angle broadband images over a ...
Y. Zhao +11 more
wiley +1 more source
A new technique for reducing size of a wpt system using two-loop strongly-resonant inductors [PDF]
, 2017 Mid-range resonant coupling-based high efficient wireless power transfer (WPT) techniques have gained substantial research interest due to the number of potential applications in many industries.
Adebisi, Bamidele +6 more
core +3 more sources
Efficient PAPR reduction algorithm in OFDM based on nonlinear piecewise companding
Tongxin xuebao, 2021 Focusing on the high peak-to-average power ratio （PAPR） problem in orthogonal frequency division multiplexing （OFDM） systems， a generalized hybrid of rayleigh and sine distribution based nonlinear companding algorithm for PAPR reduction in OFDM systems ...
Zhitong XING +5 more
doaj +2 more sources
On Optimizing the PAPR of OFDM Signals With Coding, Companding, and MIMO
IEEE Access, 2019 One main disadvantage of the multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system is that the signals transmitted on each antenna may experience high peak-to-average-power ratio (PAPR). We will present a new hybrid
Francisco Sandoval +2 more
doaj +1 more source
Rate Allocation for Decentralized Detection in Wireless Sensor Networks
, 2015 We consider the problem of decentralized detection where peripheral nodes make noisy observations of a phenomenon and send quantized information about the phenomenon towards a fusion center over a sum-rate constrained multiple access channel.
Jalden, Joakim, Tarighati, Alla
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Zero-Delay Joint Source-Channel Coding in the Presence of Interference Known at the Encoder [PDF]
, 2016 Zero-delay transmission of a Gaussian source over an additive white Gaussian noise (AWGN) channel is considered in the presence of an additive Gaussian interference signal.
Ertem, T, Gunduz, D, Varasteh, M
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Joint Wyner-Ziv/Dirty Paper coding by modulo-lattice modulation
, 2008 The combination of source coding with decoder side-information (Wyner-Ziv problem) and channel coding with encoder side-information (Gel'fand-Pinsker problem) can be optimally solved using the separation principle.
Kochman, Yuval, Zamir, Ram
core +4 more sources
A New Approach to Peak Threshold Estimation for Impulsive Noise Reduction Over Power Line Fading Channels [PDF]
, 2018 Impulsive noise (IN) is a major component that degrades signal integrity in power line communication (PLC) systems. PLC systems driven by orthogonal frequency-division multiplexing (OFDM) have Rayleigh distributed amplitudes.
Adebisi, Bamidele +5 more
core +2 more sources