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Inferring latent user preferences using both structured and unstructured data is an important social computing task. In this paper, we propose a user preference representation based on user activities embedded in unstructured data to better encode the homophily theory. The representation of an individual user is learned using a embedding based method to integrate latent user preferences in social...
Partial transmit sequence (PTS) scheme is one of the distortionless PAPR reduction scheme in multicarrier systems. The conventional PTS scheme exploits the frequency-domain phase rotation to generate low PAPR candidate signal, however it suffers from both high complexity and side information (SI). This paper proposes a time-domain PTS scheme without SI for single carrier frequency division multiple...
In the uplink of interleaved orthogonal frequency division multiple access (OFDMA) systems, multiuser interference (MUI) occurs due to different carrier frequency offsets (CFOs) from different users at the receiver. In this paper, a novel scheme is presented to compensate the multiple CFOs at the interleaved OFDMA receiver. The proposed scheme is based on a calculation of optimum CFO correction value...
In this letter, a new blind partial transmit sequence (PTS) scheme in multi carrier code division multiple access (MC-CDMA) systems is proposed. Based on the analysis of the relationship between the dispreading property and side information, this proposed scheme divides the received signal into subblocks, and selects the set of phase factors which provides the maximum power of the combination of dispread...
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