Performance Analsis of Clipping Technique for Papr Reduction of MB-OFDM UWB Signals
| Autor: | Pappu Tejaswi, Murthy T.S.N |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
business.industry Orthogonal frequency-division multiplexing Amplifier Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Large peak Power ratio 0202 electrical engineering electronic engineering information engineering Electronic engineering Wireless 020201 artificial intelligence & image processing business |
| Zdroj: | International Journal on Cybernetics & Informatics. 5:09-19 |
| ISSN: | 2277-548X 2320-8430 |
| DOI: | 10.5121/ijci.2016.5402 |
| Popis: | Multiband Orthogonal Frequency Division Multiplexing (MB-OFDM) is used as efficacious procedure for ultra-wideband (UWB) wireless communication applications, which divides the spectrum into various subbands, whose bandwidth is approximately 500MHz. Major arduousness in multiband-OFDM is ,it have very large peak to average power ratio value which causes the signal to enter into dynamic region that consequence in the loss of orthogonal properties and results in the interference of the carrier signals which crops the amplifier saturation and finally limits the capacity of the system. Many PAPR amortize algorithms have reported in the survey and pre-coding is PAPR reduction which is inserted after modulation in the OFDM system. The Existing work presents the reduction of that value by different clipping techniques namely Classical-Clipping (CC), Heavy side-Clipping (HC), Deep-Clipping (DC) and Smooth-Clipping (SC) and their comparison analysis is done. Every clipping method is best at its own level .The proficiency of these strategies are evaluated in locutions of average power disparity, complete system decadence and PAPR reduction. Finally results show the MB OFDM yields better performance to reduce PAPR in effective way. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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