NDLI: Capacity analysis of adaptive multiuser frequency-time domain radio resource allocation in OFDMA systems

Content Provider	IEEE Xplore Digital Library
Author	Xing Zhang Yirong Wang Wenbo Wang
Copyright Year	2006
Description	Author affiliation: Beijing Univ. of Posts & Telecommun. (Xing Zhang; Yirong Wang; Wenbo Wang)
Abstract	In this paper, we present the adaptive multiuser frequency-time domain radio resource allocation model which adaptively allocates the radio resource jointly in the frequency and time domain to exploit the frequency diversity and time diversity as well as multiuser diversity. Then we give an in-depth capacity analysis of the proposed radio resource allocation with frequency-time domain power adaptation in the downlink OFDMA systems and draw a comparison with the conventional frequency domain resource allocation method. Simulation results show that: 1) the proposed resource allocation method achieves much higher spectral efficiency than the conventional frequency-domain resource allocation; and 2) for the proposed two-dimensional allocation method, the performance of water-filling power allocation is almost the same as that of the equal power allocation, especially when the number of user is large
Sponsorship	The Inst. of Electr. and Electron. Eng., Inc. Circuits and Syst. Soc. (IEEE CASS)
File Size	1286755
File Format	PDF
ISBN	0780393899
DOI	10.1109/ISCAS.2006.1693923
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-21
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio spectrum management Frequency domain analysis Resource management Frequency diversity Frequency conversion OFDM Power system modeling Diversity methods Fading Intelligent networks
Content Type	Text
Resource Type	Article

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