Space-Time Coded OFDM with Low PAPR
نویسندگان
چکیده
منابع مشابه
Space-time coded OFDM with low PAPR
Recently the use of multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems has been proposed for signaling over frequency-selective fading channels. Although various aspects of these systems have been considered in the literature, the problem of the inherent high peak-to-average power ratio (PAPR) is not examined. In this paper, we consider PAPR reductio...
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Active Constellation Extension (ACE) is one of techniques introduced for Peak to Average Power Ratio (PAPR) reduction for OFDM systems. In this technique, the constellation points are extended such that the PAPR is minimized but the minimum distance of the constellation points does not decrease. In this paper, an iterative ACE method is extended to spatially encoded OFDM systems. The proposed m...
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Orthogonal Frequency Division Multiplexing (OFDM) is basically a frequency division multiplexing technique which uses a multicarrier scheme. Due to the efficient behavior in multipath fading environment OFDM used in many physical wireless systems. OFDM suffers from high Peak to Average Power Ratio (PAPR) compared to the single carrier systems. In this paper we have presented a PAPR reduction te...
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ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2006
ISSN: 1687-6172,1687-6180
DOI: 10.1155/asp/2006/87125