Adaptive bit and subcarrier allocation algorithm for multiuser OFDM/OQAM systems. (1st January 2011)

• Record Type: Journal Article
• Authors: Baamrani, Khalid El; Habib, Ayad; Elassali, Raja
• Is Part Of: International journal of mobile network design and innovation. Volume 3:Number 4(2011)
• Page Start: 198
• Page End: 203
• Publication Date: 2011-01-01
• Subjects: multiuser OFDM -- offset QAM -- offset quadrature amplitude modulation -- OQAM -- filter bank-based multicarrier -- FBMC -- bit and subcarrier allocation -- mobile network; Mobile communication systems -- Periodicals; Wireless communication systems -- Design and construction -- Periodicals; 384.535
• DOI: 10.1504/IJMNDI.2011.042560
• Languages: English
• ISSNs: 1744-2869

Abstract

OFDM/OQAM technique is one of the leading candidates for future wireless systems. This technique does not employ guard regions and as a direct consequence, the wasted resources (time/power) allocated to the guard interval in the OFDM/QAM system are directly used to convey useful data; this guarantees a higher spectral efficiency and a throughput increase. The objective of this paper is to maximise the sum of the users data rates subject to the overall transmit power constraint and BER requirement for multiuser OFDM/OQAM downlink transmission. As demonstrated in the simulation results, the proposed OFDM/OQAM algorithm offers better performance than previous OFDM/QAM algorithms in the literature.