Title :
Performance analysis of spectrum efficiency of cognitive radio
Author :
Kashwan, K.R. ; Anuraj, R.
Author_Institution :
Dept. of Electron. & Commun. Eng.-PG, Sona Coll. of Technol. (Autonomous), Salem, India
Abstract :
Spectrum is getting more and scarcer with ever expanding wireless application technology. The new generation technologies such as 3G and 4G are causing more spectrum congestion. The solution for this may lie with use of Cognitive Radio (CR) for communication. In this paper, the performance of a new method is analysed. This method increases the channel efficiency and capacity by allowing both the licensed and unlicensed users to share the spectrum band. Spectral encoded signals are used for the transmission of data and parity bits. OFDMA is analysed for unused and underused bandwidths. This method is analysed by using MATLAB simulation tools. Performance analysis results of OFDMA waveforms are studied and analysed for comparison with the CDMA technology.
Keywords :
OFDM modulation; cognitive radio; frequency division multiple access; 3G technology; 4G technology; CDMA technology; MATLAB simulation tools; OFDMA waveforms; channel capacity; channel efficiency; cognitive radio; data bits; licensed users; parity bits; performance analysis; spectral encoded signals; spectrum efficiency; underused bandwidths; unlicensed users; unused bandwidths; wireless application technology; Bandwidth; Bit error rate; Cognitive radio; Delay; Interference; Multiaccess communication; OFDM; Channel Efficiency; Cognitive Radio; MATLAB Tools; OFDMA; Spectrum Congestion;
Conference_Titel :
Image Information Processing (ICIIP), 2011 International Conference on
Conference_Location :
Himachal Pradesh
Print_ISBN :
978-1-61284-859-4
DOI :
10.1109/ICIIP.2011.6108938
