An Improved Transmission Rate in Cooperative Communication Based on OFDMA System
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概要
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The sub-channel is empty except each user's allocated sub-channel in an orthogonal frequency division multiple access (OFDMA) system. The scheme of cooperative communication using this empty sub-channel has been studied. But, because each user wastes the time slots in the cooperation phase, it is difficult to achieve the full rate. In this letter, a new cooperative communication scheme based on OFDMA is proposed to improve transmission rate in Rayleigh fading channel.
著者
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Song Hyoung-kyu
Ut Communication Institute Sejong University
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LEE Eui-Hak
uT Communication Research Institute, Sejong University
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