An Efficient PAPR Reduction Method for Wavelet Packet Modulation Schemes

Le, Ngon T.; Muruganathan, S.D.; Sesay, A.B.

doi:10.1109/vetecs.2009.5073381

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…where α = µ/ς with ς being the drain efficiency of the RF power amplifier and µ being the PAPR [8], which depends on the modulation scheme and associated constellation size [9]. P out can be calculated according to link budget relationship [11] as follows:…”

Section: Energy Consumption Analysismentioning

confidence: 98%

Energy efficient wavelet based OFDM for V-BLAST MIMO Wireless Sensor Networks

Rafique

Seet

2011

2011 IEEE Online Conference on Green Communications

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In this paper, Wavelet based Orthogonal Frequency Division Multiplexing (WOFDM) is proposed as the primary modulation technique for Multi-Input Multi-Output (MIMO) Wireless Sensor Networks (WSNs) based on Vertical Bell Labs Layered Space-Time (V-BLAST) architecture. The BER and energy performance of WOFDM is analyzed and compared with other well-known modulation techniques. By exploiting the properties of WOFDM such as one dimensional constellation and low Peak-to-Average-Power Ratio (PAPR), simpler RF section can be designed for energy-efficient and high data-rate WSNs.

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Section: Energy Consumption Analysismentioning

confidence: 98%

Energy efficient wavelet based OFDM for V-BLAST MIMO Wireless Sensor Networks

Rafique

Seet

2011

2011 IEEE Online Conference on Green Communications

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“…It is seen that the WPDM shows slight smaller PAPR compared with the DCO-OFDM. Note that the PAPR performance gain can be further improved by optimizing the modulation structure and the orthogonal basis [9].…”

Section: A Spectrum and Power Efficiencymentioning

confidence: 99%

“…Thus there is no need for employing CP to mitigate the ISI. Moreover, WPDM outperforms OFDM in terms of the peak-to-average power ratio (PAPR) [9]. To the best of our knowledge, WPDM has not been introduced to optical wireless communication such as LED based visible light communication.…”

Section: Introductionmentioning

confidence: 99%

Visible light communication based on wavelet packet division multiplexing

Huang

Gong

2014

2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)

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We introduce wavelet packet division multiplexing (WPDM) to Light-emitting diodes (LED)-based optical wireless communication systems. We first review the WPDM fundamental knowledge, and then provide a LED communication system diagram based on WPDM. Then, we evaluate the performance of the WPDM-based LED communication system, and compare it with the DC biased optical OFDM (DCO-OFDM)-based communication system. From simulation results, it is seen that the WPDM-based system shows higher spectrum and power efficiency, lower peak-to-average power ratio (PAPR), more robust to inter-symbol interference (ISI) and LED nonlinear distortion. Those features make WPDM a good candidate for the LED communication systems. Keywords-optical wireless communication; wavelet packet division multiplexing; orthogonal waveform basis.

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“…Literature [4][5][6][7] attempted to solve the problem from the optimization of wavelet packet modulation. Some studies [8] and [9] present the method of probability to reduce PAPR, not only to affect the BER performance of system but to have high complexity, such as PTS technology.…”

Section: Introductionmentioning

confidence: 99%

PAPR Reduction Schemes for Lifting Scheme based Orthogonal Wavelet Packet Multiplexing System

Tan¹,

Guangwu²,

Wei³

2015

TOCSJ

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Lifting scheme based orthogonal wavelet packet multiplexing (LOWPM) system can increase computation efficiency and save storage space, but as a new multicarrier modulation system, it also has the problem of high peak to average power ratio (PAPR). In order to reduce computational complexity and improve the effect of PAPR suppression for Partial Transmit Sequence (PTS) technology, PAPR reduction schemes based on the technology of pruning wavelet packet modulation and the improved threshold search for PTS are put forward in the paper, through proper pruning of the fulltree structure of wavelet packet modulation in the PTS to reduce the number of nodes in the system, and finally improve the effect of PAPR reduction, and on the other hand, through improving threshold search to increase the processing efficiency. Simulation results show that the proposed algorithm compared with the original algorithm has corresponding performance improvement, and on the condition of not affecting the original bit error rate of system, can better reduce PAPR, while decreasing the computational complexity.

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An Efficient PAPR Reduction Method for Wavelet Packet Modulation Schemes

Cited by 6 publications

References 11 publications

Energy efficient wavelet based OFDM for V-BLAST MIMO Wireless Sensor Networks

Energy efficient wavelet based OFDM for V-BLAST MIMO Wireless Sensor Networks

Visible light communication based on wavelet packet division multiplexing

PAPR Reduction Schemes for Lifting Scheme based Orthogonal Wavelet Packet Multiplexing System

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