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Browsing by Author "Kim, Kiseon"
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Analytical time-domain model for radio over free space optical (RoFSO) systems considering the scintillation effect
Lim, Wansu; Cho, Tae-Sik; Yun, Changho; Kourtessis, Pandelis; Kim, Kiseon; Yang, Yeon-Mo (2012)An analytical time-domain model is presented to analyze a radio over free space optical (RoFSO) system considering the scintillation effect with a log-normal distribution. This analytical model uses a dual-drive Mach-Zehnder ... -
Average BER analysis of SCM-based free-space optical systems by considering the effect of IM3 with OSSB signals under turbulence channels
Lim, Wansu; Cho, Teasik; Yun, Changho; Kim, Kiseon (2009-11)In this paper, we derive the average bit error rate (BER) of subcarrier multiplexing (SCM)-based free space optics (FSO) systems using a dual-drive Mach-Zehnder modulator (DD-MZM) for optical single-sideband (OSSB) signals ... -
BER performance analysis of radio over free-space optical systems considering laser phase noise under Gamma-Gamma turbulence channels
Lim, Wansu; Yun, Changho; Kim, Kiseon (2009-03)This paper analytically investigates a bit error rate (BER) performance of radio over free space optical (FSO) systems considering laser phase noise under Gamma-Gamma turbulence channels. An external modulation using a ... -
Burst-polling based dynamic bandwidth allocation using adaptive minimum guaranteed bandwidth for EPONs
Lim, Wansu; Yun, Changho; Yang, Yeon-Mo; Lee, Hyunju; Kim, Kiseon (2009-12)The enhanced burst-polling dynamic bandwidth allocation (EBDBA) method is proposed to support broadband access networks based on quality of service for Ethernet passive optical networks (EPONs). EBDBA adaptively increases ...