Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Dae-Ig Chang"'
Publikováno v:
ICTC
5G has been enlarged the multi-service networks supporting a wide range of verticals for a diverse set of performance. To meet these various requirements, satellite communications are being highlighted especially in non-terrestrial area. In this pape
Autor:
Jong-keun Lee, Dae-Ig Chang
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. 42:739-746
Publikováno v:
International Journal of Satellite Communications and Networking. 33:295-314
Summary This paper presents the satellite orthogonal frequency division multiplexing (SAT-OFDM) technology as a satellite radio interface for international mobile telecommunications (IMT)-Advanced. The SAT-OFDM radio interface is designed to provide
Publikováno v:
International Journal of Satellite Communications and Networking. 33:351-366
Summary An integrated mobile-satellite service (MSS) system is one of the most promising infrastructures for the efficient use of satellite frequency, and the satellite coverage can be extended by reusing the satellite frequency in its ground compone
Autor:
Jong-keun Lee, Dae-Ig Chang
Publikováno v:
2017 19th International Conference on Advanced Communication Technology (ICACT).
Frequency usage is steadily increased according to growth in communication services. Researchers develop communication technologies to get an additive spectrum efficiency on this account. ETSI also upgrades existing DVB-S2 standard to meet increased
Autor:
Jong-keun Lee, Dae-Ig Chang
Publikováno v:
ICTC
In this paper, we represent performance comparison of V2V communications. We apply LTE-D2D with MIMO or cooperative schemes to get low latency and reliability. In cooperative communication, respective links between transmitters and receivers are affe
Publikováno v:
Journal of Communications and Networks. 12:582-591
Probabilistic modeling and analysis of correlation metrics have been receiving considerable interest for a long period of time because they can be used to evaluate the performance of communication receivers, including satellite broadcasting receivers
Layer-separable PES Packetization and Processing Scheme for SVC-based Satellite Broadcasting Service
Publikováno v:
Journal of Broadcast Engineering. 14:561-572
In this paper, we propose an efficient layer-separable PES packetization and processing scheme for DVB-S2 satellite broadcasting service based on SVC video. Unlike the conventional single layer-based video coding such as MPEG-2, MPEG-4 and H.264, SVC
Publikováno v:
International Journal of Satellite Communications and Networking. 27:295-311
For increased bandwidth efficiency and receiver performance, standards for satellite broadcasting systems are evolving by utilizing efficient transmission techniques. The second-generation digital video broadcasting for satellites (DVB-S2) adopts the
Publikováno v:
Journal of Broadcast Engineering. 13:905-914
요 약이 연구는 Ka대역 HDTV 위성방송서비스를 제공할 때 발생하는 강우감쇠 문제를 해결하기 위하여, MPEG-4 SVC (Scalable Video Coding) 신호를 JSCC (Joint Source/Channel Coding) 시스템을 통하여 Ka대역 위