Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Youn Ok Park"'
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. 41:51-57
This paper describes the physical layer modem structure of Giga KOREA 5G system which is being developed by ETRI as a 5G telecommunications prototype. The objective of Giga KOREA 5G system is supporting maximum 100 Gbps data rate for each cell with w
Publikováno v:
International Journal of Communication Systems. 29:1128-1137
We consider the problem of bit error rate BER degradation because of the power gain imbalance between horizontal H-polarization and vertical V-polarization components in an orthogonal dual-polarization transmission system. To alleviate the aforementi
Publikováno v:
Wireless Personal Communications. 83:1341-1358
An enlargement of the candidate vector set of QR-least reliable layer (QR-LRL) based MIMO detector for efficient soft output generation is proposed. Previous work (Bahng et al. in IEICE Trans Commun, E89---B(10):2956---2960, 2008) shows that the QR-L
Publikováno v:
2017 19th International Conference on Advanced Communication Technology (ICACT).
A Physical layer link channel (PLC) is a narrowband signaling channel located within the downstream OFDM channel used in data-over-service-interface specifications (DOCSIS) 3.1 system. It consists of a PLC preamble and PLC data which include informat
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. :771-773
Dual-polarization antenna system has been being researched for wireless communications under short range line-of-sight channel environments. In this paper, probability density function of signal-tointerference-ratio(SIR) for the dual-polarization ant
Autor:
Changyong Shin, Youn Ok Park
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. :774-776
In this paper, we propose a multiple dual-polarized antenna system for multi-user transmission in line-of-sight (LoS) dominant channel environments. By exploiting space and polarization resources efficiently, the proposed system achieves a higher sum
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. :154-161
This paper presents the signal-to-interference plus noise ratio (SINR) estimation of IEEE 802.16m WirelessMAN-Advanced mobile station with simulation and implementation results. The downlink signal of IEEE 802.16m has two kinds of A-Preambles: the PA
Publikováno v:
2016 IEEE MTT-S International Microwave Symposium (IMS).
A 2.59GHz self-interference cancellation (SIC) circuit is presented for in-band full-duplex radio. The SIC circuit is based on an analog vector modulator whose output can automatically track the time-varying self-interference signal through an analog
Publikováno v:
2016 18th International Conference on Advanced Communication Technology (ICACT).
The 3-dimensional beamforming is a highly attractive issue in 5G telecommunication. Equipped with 2-dimensional antenna arrays, it allows vertical sectorization within a cell as well as horizontal one, by making a beamforming zone for the correspondi
Publikováno v:
The Journal of Korea Navigation Institute. 16:255-263
In this paper, the performance evaluation results of the timing synchronization schemes are presented for aeronautical mobile airport communication systems (AeroMACS). AeroMACS, which is based on IEEE 802.16e mobile WiMAX standard, uses the aeronauti