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Quadrature OFDMA Systems Based on Layered FFT Structure

Zhang, Jian (Andrew); Luo, Lin; Shi, Zhenning

Description

In current OFDMA systems three major problems arise due to the large number of subcarriers, including high peak to average power ratio (PAPR), sensitivity to carrier frequency offset (CFO), and high complexity in users terminals. In this paper, based on an innovative concept of layered FFT structure, we propose novel Quadrature OFDMA (Q-OFDMA) systems which can overcome these problems. In particular, the proposed systems can achieve the same guard-interval overhead and same bandwidth occupation...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/51842
Source: IEEE Transactions on Communications
DOI: 10.1109/TCOMM.2009.03.060620

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