Robust Low-Sidelobe Transmit Beamforming under Peak-to-Average-Power Ratio Constraint [PDF]
Sensors, 2023 Transmit beamforming (TBF) provides the capability of focusing illuminating power in the desired directions while reducing the emitting power in undesired directions.
Lingping Cai +4 more
doaj +2 more sources
Peak to average power ratio reduction in NC–OFDM systems [PDF]
Journal of Electrical Engineering, 2015 Non contiguous orthogonal frequency division multiplexing (NC-OFDM) is an efficient and adaptable multicarrier modulation scheme to be used in cognitive radio communications.
Ghafoor, Abdul +2 more
core +3 more sources
Optical-OFDM VLC System: Peak-to-Average Power Ratio Enhancement and Performance Evaluation [PDF]
SensorsVisible Light Communication (VLC) systems are favoured for numerous applications due to their extensive bandwidth and resilience to electromagnetic interference.
Yasser A. Zenhom +3 more
doaj +2 more sources
Low Spatial Peak-to-Average Power Ratio Transmission for Improved Energy Efficiency in Massive MIMO Systems [PDF]
Sensors, 2021 A significant portion of the operating power of a base station is consumed by power amplifiers (PAs). Much of this power is dissipated in the form of heat, as the overall efficiency of currently deployed PAs is typically very low.
Sina Rezaei Aghdam, Thomas Eriksson
doaj +2 more sources
Secure OFDM with Peak-to-Average Power Ratio Reduction Using the Spectral Phase of Chaotic Signals [PDF]
Entropy, 2021 In this paper, a new physical layer security technique is proposed for Orthogonal Frequency Division Multiplexing (OFDM) communication systems. The security is achieved by modifying the OFDM symbols using the phase information of chaos in the frequency ...
Mohamad F. Haroun, T. Aaron Gulliver
doaj +2 more sources
A Novel Hybrid Precoding-Companding Technique for Peak-to-Average Power Ratio Reduction in 5G and beyond [PDF]
Sensors, 2021 Several high-speed wireless systems use Orthogonal Frequency Division Multiplexing (OFDM) due to its advantages. 5G has adopted OFDM and is expected to be considered beyond 5G (B5G).
Mohamed Mounir +4 more
doaj +2 more sources
Peak-to-Average Power Ratio analysis in MIMO systems [PDF]
2006 2nd International Conference on Information & Communication Technologies, 2006 International audienceIn this paper, we analyze the Peak-to-Average Power Ratio (PAPR) in Multiple Input Multiple Output (MIMO) systems based on Alamouti diversity scheme. This analysis is at both transmitter and re- ceiver sides with channel influences.
Louët, Yves, Rihawi, Basel
core +6 more sources
Peak to average power ratio analysis for LTE systems [PDF]
2010 Second International Conference on Communication Software and Networks, 2010 The 3rd generation partnership project (3GPP) long term evolution (LTE) standard uses single carrier frequency division multiple access (SCFDMA) scheme for the uplink transmissions and orthogonal frequency division multiplexing access (OFDMA) in downlink.
Islam, Md. Saiful +2 more
core +2 more sources
Peak-to-average power ratio of good codes for Gaussian channel [PDF]
IEEE Transactions on Information Theory, 2014 Consider a problem of forward error-correction for the additive white Gaussian noise (AWGN) channel. For finite blocklength codes the backoff from the channel capacity is inversely proportional to the square root of the blocklength.
Polyanskiy, Yury, Wu, Yihong
core +5 more sources
Clipping Noise Compensation for Overlapped Time Domain Multiplexing toward Low Peak-to-Average Power Ratio [PDF]
SensorsOverlapped Time Domain Multiplexing (OvTDM) is a high-rate transmission technology that employs the idea of superposition coded modulation (SCM) scheme for signal generation, aiming to achieve maximum channel capacity sharing.
Chongda Huang +3 more
doaj +2 more sources