Spectral Efficiency and Bit Error Rate Analysis of WiMAX Using Diverse Modulation Techniques over Rayleigh Channel
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 7
Abstract
Worldwide Interoperability for Microwave Access (WiMAX) is a popular wireless technology which offers fast voice, video and information benefits up to the client end. In this paper, the OFDM based WiMAX physical layer makes use of concatenated Reed Solomon Convolutional (RS-CC) code and different modulation techniques with different code rates along with different cyclic prefix. As WiMAX can be used for NLOS (Non - Line of Sight) communication so Rayleigh channel has been used as transmission medium. The comparison of various cyclic prefix such as 1/4, 1/8, 1/16 and 1/32 has been done on different modulation techniques over Rayleigh channel. The performance of OFDM based WiMAX physical layer has been analyzed from the graphs between BER (Bit Error rate) vs. SNR (Signal to Noise Ratio) and Spectral Efficiency vs. SNR (Signal to Noise Ratio) for different modulation techniques. The simulation results of BER vs. SNR conclude that different modulations and code rate provide better performance at guard time interval of 1/32.The simulation result of Spectral efficiency vs SNR conclude that 64 QAM with code rate ¾ has highest spectral efficiency because of which it can be used for transmitting larger amount of data with lesser amount of transmission error.
Authors and Affiliations
Bindu Handa, Anita Suman, Praveen Kumar
Keywords
Related Articles
- EP ID EP391880
- DOI 10.9790/9622-0707080613.
- Views 121
- Downloads 0
Thermodynamic Assessment of the Fe-B System in the Ssol5 and User Databases
Thermodynamic assessment of Fe-B system, including phase diagram, Gibbs energy, enthalpy, heat capacity and activity, was performed in the ThermoCalc software ver. 4.1 (Sweden). Two databases were used: the commercial SS...
Measurement and Performance Evaluation of Horizontal Axis Wind Turbine Using Variable Blade Pitch Control Mechanism
This work investigates the performance of a horizontal axis wind turbine (HAWT) with variable blade pitch control mechanism. The control mechanism is a simple mechanical Watt governor design, which was developed to regul...
Study of Yamuna River Water and Its Nearby Drinking Water Sources in North Delhi
The Condition of River Yamuna is getting poor day by day in Delhi. Abandoned dhobi Ghats, their Tubs and Kilns Assemble on the boundary of the river and causes major amount of River Pollution. This Study is about Quality...
Decentralized control scheme for Load Frequency Control in a Power System
This paper presents the decentralized control scheme in case of Load Frequency Control used in Power System. This scheme can be used in both single area and interconnected power system. But in an interconnected power sys...
Analysis of Self-Supported Steel Chimney with the Effects of Geometrical Parameters
Steel stacks are smoke releasing slender and tall structures constructed for various power plant or oil and gas industries. Steel chimney are subjected to static and dynamic loadings. Static analysis is carried out by st...