Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Youn Shik Byun"'
Autor:
Youn-Shik Byun, Jun-Ho Kim
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. 41:890-895
Autor:
Youn-Shik Byun, Nak-Kyun Kim
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. 40:253-263
Lately, spectrum sensing performance has been improved by using cooperate spectrum sensing which each results of sensing of several secondary users are reported to the fusion center. Using Cognitive Radio, secondary user is able to share a bandwidth
Autor:
Youn-Shik Byun, Romi Choe
Publikováno v:
The Journal of Korea Information and Communications Society. :19-27
As frequency resource has taken on greater importance, Cognitive Radio(CR) technology has been considered as the solution to improve spectrum utilization by allowing a secondary user to utilize a licensed band when the primary user is absent. So spec
Autor:
Yong-Seock Cho, Youn-Shik Byun
Publikováno v:
The Journal of Korea Information and Communications Society. :350-359
In this paper, Inter user interference elimination algorithm based on Block Diagonal Geometric Mean Decomposition(BD-GMD) for eliminating inter user interference apply to Zero-Forcing in the Successive Signal to Leakage plus Noise Ratio(SSLNR) in Coo
Autor:
Youn-Shik Byun, Romi Choe
Publikováno v:
The Journal of Korea Information and Communications Society. :249-257
Recently, data traffic is significantly increased by high rate data service. As a result, radio spectrum is considered one of the most scarce and valuable resources for wireless communications. For the solution of this problem, cognitive radio(CR) ha
Autor:
Myung-Ju Jo, Youn-Shik Byun
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. 37:488-496
In this paper, the scheme for designing optimal beamforming matrix for interference control is proposed. The optimal beamforming matrix is found though linear combination of interference alignment conditions and renewal of linear combination coeffici
Autor:
Ki-Jun Lee, Youn-Shik Byun
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 23:700-705
This paper suggests the detecting method in which it uses the candidate symbol obtained through PI-SDR, the little computational complexity is required. By using the candidate symbol matrices obtained through PI-SDR, ZF and MMSE method was applied an
Autor:
Youn-Shik Byun, Eun-Ji Yoo
Publikováno v:
The Journal of Korean Institute of Communications and Information Sciences. 36:149-156
MIMO-OFDM(Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing) has been spotlighted as a solution of high-quality service for next generation's wireless communications. However, like OFDM, one of main problems of MIMO-OFDM is th
Publikováno v:
2008 IEEE 9th Workshop on Signal Processing Advances in Wireless Communications.
Wireless communication systems must be designed to mitigate fading to guarantee a reliable communication. In future technologies, a successful method to improve reliable communication over a wireless link is to use multiple antennas. Recently, a lot
Publikováno v:
2008 10th International Conference on Advanced Communication Technology.
We already know that the Maximum Likelihood (ML) detection in multiple-input multiple-output (MIMO) channels has optimal performance. However its complexity is very serious problem to make it in capable of real time implementation. To simplify the co