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http://dx.doi.org/10.6109/jkiice.2011.15.8.1675

A Spectrally Efficient Relaying Scheme with Multiple Antennas for Next-Generation Cellular Networks  

Jung, Bang-Chul (경상대학교 정보통신공학과)
Kang, Min-Seok (경상대학교 정보통신공학과)
Lee, Sang-Wook (경상대학교 정보통신공학과)
Jeon, Seong-Geun (경상대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.8, 2011 , pp. 1675-1686 More about this Journal
Abstract
We propose a spectrally efficient relaying scheme with multiple antennas for cellular networks which consist of base station (BS), relay station (RSs), and mobile stations (MSs). In general, a BS has more antennas than an RS or an MS. By using multiple antennas, a BS can support another MS with the same frequency resource, where an RS transmits data to a specific MS. In this case, the MS receiving data form an RS also receives the interference form the BS because the BS also uses the same frequency resource at the same time. In this paper, we propose ing and pre-whitening techniques as a pre-coding scheme at the BS for reducing the interference at the MS receiving data from the RS.
Keywords
relay station; multiple antennas; scheduling; MIMO pre-coding; spectral efficiency;
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