Results 31 to 40 of about 1,161,847 (184)
Peak-to-average power ratio reduction based on cross-correlation in OFDM systems [PDF]
, 2014 Two of the most important techniques of Peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems are Partial Transmit Sequence PAPR (PTS-PAPR) and Cross-Correlation-PTS.
Hashim, Shaiful Jahari +5 more
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A peak-to-average power ratio reduction method for mixed-numerology multi-carrier systems
Dianxin kexue, 2023 In order to support diverse service demands of communication scenarios, 5G adopts the mixed-numerology system based on orthogonal frequency division multiplexing (OFDM).The mixed-numerology systems still have the problem of high peak-to-average power ...
Nan SHI +4 more
doaj +2 more sources
IEEE Access, 2019 Reliable wireless data transmission in intelligent transportation systems (ITS) has drawn a wide concern in recent years. As an efficient wireless transmission technology, multi-carrier communication (MCM) finds its way in many applications. However, the
Jun Hou +5 more
doaj +1 more source
Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser [PDF]
, 2012 A compact semiconductor mode-locked laser (MLL) is presented that demonstrates strong passive Q-switched mode-locking over a wide range of drive conditions.
Cheung +12 more
core +1 more source
Partial Transmit Sequences for Peak-to-Average Power Ratio Reduction in Multiantenna OFDM
EURASIP Journal on Wireless Communications and Networking, 2007 The major drawback of orthogonal frequency-division multiplexing (OFDM) is its high peak-to-average power ratio (PAR), which gets even more substantial if a transmitter with multiple antennas is considered.
Christian Siegl, Robert F. H. Fischer
doaj +1 more source
Peak-to-average power ratio analysis in multicode CDMA [PDF]
Proceedings IEEE 56th Vehicular Technology Conference, 2003 This paper analyzes the peak-to-average power ratio (PAPR) problem in multicode-code division multiple access (MC-CDMA) systems. The statistical distribution of PAPR is derived and the achievable PAPR reduction for a given code rate is estimated. We show that the PAPR in MC-CDMA communications systems can be reduced by partial transmit sequence (PTS ...
K. Sathananthan, C. Tellambura
openaire +1 more source
Journal of Communications Software and Systems, 2022 When dealing with the phenomenon of unexpected high peak-to-average power ratio (PAPR) caused by multicarrer techniques, it is rarely to find a proposed solution that addresses the most important challenges together, that are; reducing the PAPR ...
Mohammed I. Al-Rayif
doaj +1 more source
Linearization Study of a Highly Efficient CMOS-GaN RF Pulse Width Modulation Based Transmitter [PDF]
, 2012 This paper studies linearity of a 2 GHz, 10 Watt peak output power RF pulse width modulation (RF-PWM) based transmitter. The transmitter incorporates a tunable load network class-E PA as the final output stage.
Acar, Mustafa +5 more
core +1 more source
On the peak-to-average power ratio of M-sequences
Finite Fields and Their Applications, 2006 Let \(\mathbb F_q\), \(q=2^m\), be a finite field with a primitive element \(\alpha\). For \(\beta\in \mathbb F_q^*\), the \(M\)-sequence is: \[ a_k(\beta )=(-1)^{\text{tr}(\beta\alpha^k)},\qquad 0\leq k < q-1, \] where \(\text{tr}\) is the trace form \(\mathbb F_q\) to \(\mathbb F_2\).
Alrod, Idan +2 more
openaire +1 more source
Joint Tomlinson-Harashima precoding and optimum transmit power allocation for SC-FDMA [PDF]
, 2010 Single-Carrier Frequency Division Multiple Access (SC-FDMA) has been selected as the uplink transmission scheme in the 3GPP Long Term Evolution standard.
Nix, AR, Noune, MB
core +2 more sources