NDLI: Uplink resource allocation for cognitive radio systems: QAM-OFDM or OQAM-OFDM?

Content Provider	IEEE Xplore Digital Library
Author	Jamal, H. Ghorashi, S.A. Sadough, S.M. Soltani, N.
Copyright Year	2012
Description	Author affiliation: Cognitive Telecommunications Research Group, Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Shahid Beheshti University G.C., 1983963113, Tehran, Iran (Jamal, H.; Ghorashi, S.A.; Sadough, S.M.; Soltani, N.)
Abstract	Daily increasing demand for new wireless services with higher data rate and QoS level makes the upgrade of the physical layer modulation techniques inevitable. OFDMA is a common multiple access multicarrier modulation technique that is usually used in cognitive radio (CR) systems. Recently, a new technology, filter bank multicarrier system (FBMC) has been introduced to provide multiple access systems with filter banks. Therefore, it seems that OFDMA is not always the best candidate for CR systems. FBMC system is an evolutionary scheme with some advantages over the common-used OFDM multicarrier systems. This technology uses filter banks to produce independent subcarriers with better spectrum efficiency and resolutions in comparison with OFDM subcarriers. In this paper, by using an idea related to this modulation technique, we propose an uplink radio resource allocation algorithm in which fairness issue is also considered. Basically, we have focused on total capacity enhancement of a CR network using FBMC modulation. In order to better illustrate the efficiency FBMC modulation technique in future CR systems, we have also enhanced the proposed resource allocation algorithm for OFDM and FBMC based CR system in the case MIMO communications.
Starting Page	188
Ending Page	193
File Size	614540
Page Count	6
File Format	PDF
ISBN	9781467320726
e-ISBN	9781467320733
DOI	10.1109/ISTEL.2012.6482981
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-06
Publisher Place	Iran
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	FBMC Cognitive Radio OFDM Resource Allocation Modulation Filter banks Interference Throughput MIMO Complexity theory Resource management
Content Type	Text
Resource Type	Article

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