Kwanwoong Ryu

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Multicarrier direct sequence code division multiple access (MC DS-CDMA) is an attractive technique for achieving high data rate transmission. This is valid regardless of whether or not the potentially large peak-to-average power ratio (PAPR) is an important factor for its application. On the other hand, code select CDMA (CS-CDMA) is an attractive technique(More)
In this paper, we present a new Multi-Carrier Code-selective Code Division Multiple Access System (MC CS-CDMA) with frequency repetition. The code selection process enables the proposed scheme to decrease the number of subcarriers for the same transmission data rate and total bandwidth as conventional MC DS-CDMA. The remaining bandwidth can be used for(More)
In this paper, we design a frame structure of the wake-up system using DTV excess bandwidth for emergency alerting based on the Advanced Television Systems Committee (ATSC) terrestrial DTV system. The proposed frame structure of that system is based on the FSK modulation for indoor reception in receiver. Laboratory test and simulation results show that the(More)
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