Title :
Low Density Spreading for next generation multicarrier cellular systems
Author :
AL-Imari, Mohammed ; Imran, Muhammad Ali ; Tafazolli, Rahim
Author_Institution :
Centre for Commun. Syst. Res., Univ. of Surrey, Guildford, UK
Abstract :
Multicarrier-Low Density Spreading Multiple Access (MC-LDSMA) is a promising technique for high data rate mobile communications. In this paper, the suitability of using MC-LDSMA in the uplink for next generation cellular systems is investigated. The performance of MC-LDSMA is evaluated and compared with current multiple access techniques, OFDMA and SC-FDMA. Specifically, Peak to Average Power Ratio (PAPR), Bit Error Rate (BER), spectral efficiency and fairness are considered as performance metrics. The link and system-level simulation results show that MC-LDSMA has significant performance improvements over SC-FDMA and OFDMA. It is shown that using MC-LDSMA can significantly improve the system performance in terms of required transmission power, spectral efficiency and fairness among the users.
Keywords :
cellular radio; error statistics; frequency division multiple access; next generation networks; MC-LDSMA; OFDMA; SC-FDMA; bit error rate; frequency division multiple access; mobile communications; multicarrier low density spreading multiple access; next generation multicarrier cellular systems; peak-to-average power ratio; spectral efficiency; spectral fairness; transmission power; Base stations; Bit error rate; Peak to average power ratio; Phase shift keying; Resource management; Multiple access technique; PAPR; fairness; link-level; low density spreading; spectral efficiency;
Conference_Titel :
Future Communication Networks (ICFCN), 2012 International Conference on
Conference_Location :
Baghdad
Print_ISBN :
978-1-4673-0261-6
Electronic_ISBN :
978-1-4673-0259-3
DOI :
10.1109/ICFCN.2012.6206872
