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 98
- Downloads 0
Double Diffusive Convection and the Improvement of Flow in Square Porous Annulus
There has been increased interest shown in recent years to investigate the behavior of heat and mass transfer in a square annulus with a porous medium fixed between the inner and outer walls. This paper aims to evaluate...
NFC based Secure Mobile Health Care System
In this paper, a novel architecture for improving healthcare system with the help of Android based mobile devices with NFC and Bluetooth interfaces, smartcard technology on tamper resistant secure element (SE) for storin...
Treatability Studies on Tannery Wastewater
Tanning industry is one of the oldest industries releasing wastewater which is characterized by high BOD, COD, suspended solids, chloride and chromium. Coagulation process helps to reduce the suspended and colloidal mate...
Assessment of Particles of Varied Soil By Grain Size Analysis – A Case Study in Jabalpur M.P.
Grain size distribution plays a vital role for characterization of soil. Particle size distribution (PSD) in a soil mass is a character which gives a major idea about bearing capacity of soils and bearing capacity of the...
Evaluation of Anti-oxidant Activity of Elytraria acaulis Aerial Extracts
Elytraria acaulis, a stem less perennial herb of Acantheceae family has many medicinal and therapeutic properties. Anti oxidative activity of the aerial parts of this Elytraria acaulis were assessed in the present study....