A Novel Alternative Signal Generation for PAPR Reduction in OFDM using Shift Value Set for CSS
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 7
Abstract
The implementation of the orthogonal frequency division multiplexing (OFDM) in a wireless communications domain has introduced the world a new communication model which can offer 100 Mbps speed with minimum disadvantages. The transmit signals in an orthogonal frequency-division multiplexing (OFDM) system can have high peak values in the time domain since many subcarrier components are added via an inverse fast Fourier transformation (IFFT) operation. As a result, OFDM systems are known to have a high peak-to-average power ratio (PAPR) when compared to single-carrier systems. In fact, the high PAPR is one of the most detrimental aspects in an OFDM system as it decreases the signal-to-quantization noise ratio (SQNR) of the analog-digital convertor (ADC) and digital-analog convertor (DAC) while degrading the efficiency of the power amplifier in the transmitter. The PTS scheme is considered as the best PAPR reduction technique and the cyclic shifted sequences (CSSs) scheme evolved from it has achieved the significant. The concept of CSS is to cyclically shifted the OFDm sequences to and then combined to generate the alternative signal sequences and the accuracy of the CSS scheme les in the careful selection of the shift value (SV) sets which directly related to PAPR reduction. In simulation results, the SV sets are carefully selected and its validation is approved by performing the simulations on the Selected SV sets.
Authors and Affiliations
B. Nagababu, J. Ravindranadh
Keywords
Related Articles
- EP ID EP24835
- DOI -
- Views 454
- Downloads 14
The Study of Rotational and Traversal Speeds Effect on Mechanical Properties Of 7075 Aluminium Alloy Friction Stir Welding
FSW has been successfully used to weld similar and dissimilar cast and wrought aluminium alloys, especially for aircraft aluminium alloys generally present low weldability by traditional fusion welding process. In this...
Productivity of Scheduled Commercial Banks in India
Banks plays an important role in financing the economic needs of the country. Productivity plays a vital role in economic growth and development in Indian banks. Productivity leads to efficient utilization of human, mat...
Wide Bandwidth CMOS Low Noise Amplifier Using Matched Coplanar Waveguide Line for Wireless Communication
In this work, the simulation analysis of low noise amplifier and rectangular micro-strip patch antenna is proposed. In this, two different modules are proposed and analysed through Agilent ADS tool. Firstly, a rectangul...
A New Single Phase 5- Level Inverter Fed from Hybrid Renewable Energy System with Less Number of Switches
Renewable energy sources such as photovoltaic, wind, and low-head hydro and geothermal are expected to increase greatly their market share of the total power produced in the world. Fuel cell technology is also nearing t...
Use of Plastic Waste in Bituminous Road
disposal of waste plastic has become a serious problem and waste plastics are thrown out which cause environmental pollution. Utilization of waste obtain in production of recycle plastic pipe may be used as coarse aggre...