Byoung-Hak Kim

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In this paper, we implement the robust demodulator for mobile broadband satellite internet access systems. Especially, in order to achieve the good synchronization under very low SNR, a large frequency offset, and Doppler frequency offset with constraints of mobile satellite communication, we introduce the efficient carrier freq. offset estimating algorithm(More)
In this paper, we introduce a low power consumption packet detection scheme based on cross correlation and complex multiplication for MB-OFDM UWB system. The proposed scheme compares received signal power and calculated value explained later. The received signal is filtered by a correlator and then output of the correlator is multiplied with delayed output(More)
This paper describes the main characteristics and architecture of a satellite mobile internet access (MSIA) system developed by ETRI. MSIA system provides Internet service, broadcasting, and digital A/V service in both fixed and mobile environments using Ku-band geostationary earth orbit (GEO) satellite. A Ku -band two-way active phased array antenna(More)
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