Results 91 to 100 of about 88,007,393 (199)
A method of reducing peak-to-average power ratio (PAPR)
, 2011 A method of reducing peak-to-average power ratio (PAPR) in orthogonal frequency division multiplex (OFDM) systems is provided, wherein the method includes the steps of generating a matrix of random phase sequence based on interleaved formation, adding of
Mohd Ali, Borhanuddin +2 more
core +1 more source
A Low-Density Parity-Check Code Search Algorithm for Low Peak-to-Average Power Ratio
, 2007 Orthogonal Frequency Division Multiplexing (OFDM) is popular modulation scheme for wireless system. Because OFDM has advantages of multipath-delay-spread tolerance, immunity to frequency selective fading channel and high spectral efficiency, many ...
范君霖, Fan, Chun-Lin
core
Whale optimization‐based PTS scheme for PAPR reduction in UFMC systems
IET CommunicationsThis paper proposes a whale optimization algorithm (WOA)‐based partial transmit sequence (PTS) scheme called WOA‐PTS to reduce the high peak‐to‐average power ratio (PAPR) for universal filtered multi‐carrier (UFMC) systems.
Esmot Ara Tuli +3 more
doaj +1 more source
Al-Khawarizmi Engineering Journal, 2019 One of the serious problems in any wireless communication system using multi carrier modulation technique like Orthogonal Frequency Division Multiplexing (OFDM) is its Peak to Average Power Ratio (PAPR).It limits the transmission power due to the ...
Ahmed K. Hassan
doaj
PAPR Reduction for Coded OFDM Systems
, 2007 正交分頻多工系統(OFDM)是一種使用多重載波調變的技術並且被使用在許多無線和有線的通訊中。然而，正交分頻多工技術有一個主要的缺點。那就是，正交分頻多工的訊號可能有大的峰均值功率比(peak-to-average power ratio)。 本論文中之設計目的是擁有高峰均值削減能力的同時不損失位元錯誤率的表現。因此我們使用錯誤更正碼的方式來降低峰均值功率比。考慮在不同的選擇性映射(Selective mapping)的架構下，研究其中有些不需使用附帶消息位元(Side-information ...
楊宗杰, Yang, Tsung-Chieh
core
A method of peak to average power ration (PAPR)
, 2013 A method of peak to average power ratio (PAPR) reduction is provided, the method includes the steps of interleaving output of Inverse Fast Fourier Transform (IFFT) modulation and performing phase optimization, such that multiplication operations are ...
Al-Hussaini, Khalid Taher Mohammed +2 more
core +1 more source
Peak-To-Average Power Ratio Reduction Techniques for OFDM Systems
, 2016 Fourth generation wireless communication technology is possible because of the OFDM technology. The modern era wants high data rate by using bandwidth efficiently, which are successfully fulfilled by OFDM technology.
Kumar, Gautam
core
Al-Khawarizmi Engineering Journal, 2008 One of the serious problems in any wireless communication system using multi carrier modulation technique like Orthogonal Frequency Division Multiplexing (OFDM) is its Peak to Average Power Ratio (PAPR).It limits the transmission power due to the ...
Ahmed K. Hassan
doaj
Peak to Average Power Ratio (PAPR) Reduction in OFDM
International Journal for Research in Applied Science and Engineering Technology, 2019 openaire +1 more source
A Novel Precoder for Peak-to-Average Power Ratio Reduction in OTFS Systems [PDF]
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 roughly 5 dB when ...
Mohammed, Saif Khan +2 more
core +1 more source