Výsledky vyhledávání

Location Error Analysis of an Active RFID-Based RTLS in Multipath and AWGN Environments

Autor: Sang-Hyun Mo, Dong-Sun Seo, Jongsub Cha, Seung-Il Myong, Heyung-Sub Lee, Hoe-Sung Yang

Publikováno v: ETRI Journal. 33:528-536

In this paper, we analyze the location accuracy of real-time locating systems (RTLSs) in multipath environments in which the RTLSs comply with the ISO/IEC 24730-2 international standard. To analyze the location error of RTLS in multipath environments

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b7ca966ec96b5ed64adb12e849eb118c
https://doi.org/10.4218/etrij.11.1610.0023

Zobrazit plný text záznamu

An Efficient ZJ-Based Decoding Algorithm for Space-Time Trellis Codes in Slow Rayleigh Fading Channels

Autor: Jongsub Cha, Joonhyuk Kang, Youngok Kim, Heyung-Sub Lee

Publikováno v: IEEE Transactions on Communications. 59:337-342

In this paper, we propose a computationally efficient decoding algorithm for space-time trellis codes in slow Rayleigh fading channels. The proposed scheme is based on a stack algorithm with two key ideas: (i) a variable stack size depending upon the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::655c28e6d0498cb7b35e39f901db16df
https://doi.org/10.1109/tcomm.2010.120710.090291

Zobrazit plný text záznamu

Low Complexity Tree Searching-Based Iterative Precoding Techniques for Multiuser MIMO Broadcast Channel

Autor: Kyungho Park, Joonhyuk Kang, Jongsub Cha, Hyuncheol Park

Publikováno v: IEICE Transactions on Communications. :2045-2048

In this letter, we propose two computationally efficient precoding algorithms that achieve near-ML performance for multiuser MIMO downlink. The proposed algorithms perform tree expansion after lattice reduction. The first full expansion is tried by s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cab472864bd0d4bc29c26c3be2426a41
https://doi.org/10.1093/ietcom/e91-b.6.2045

Zobrazit plný text záznamu

Efficient Transmit Power Allocation with Partial Feedback for Closed-Loop SQRD Based V-BLAST Systems

Autor: Hoiyoon Jung, Jongsub Cha, Hyuckjae Lee

Publikováno v: IEICE Transactions on Communications. :1219-1222

This letter proposes an efficient transmit power allocation using partial channel information feedback for the closed-loop sorted QR decomposition (SQRD) based V-BLAST systems. For the feedback information, the positive real-valued diagonal elements

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0934a5efd8f77ed6946bb43f51bfbf04
https://doi.org/10.1093/ietcom/e91-b.4.1219

Zobrazit plný text záznamu

Low Complexity Fano-Based Detection Algorithm with Iterative Structure for V-BLAST Systems

Autor: Hyuckjae Lee, Hyoungsuk Jeon, Jongsub Cha

Publikováno v: IEICE Transactions on Communications. :347-350

We present a computationally efficient Fano detection algorithm with an iterative structure for V-BLAST systems. As our previous work, we introduced a Fano-based sequential detection scheme with three interrelated steps whose computational loads are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5bd5b8916fa6104a2df38c3053c3e1b1
https://doi.org/10.1093/ietcom/e91-b.1.347

Zobrazit plný text záznamu

Reduced-Complexity Stack-Based Iterative Detection for V-BLAST Systems

Autor: Jongsub Cha, Joonhyuk Kang, Keonkook Lee

Publikováno v: IEICE Transactions on Communications. :2897-2902

In this paper, a computationally efficient stack-based iterative detection algorithm is proposed for V-BLAST systems. To minimize the receiver's efforts as much as possible, the proposed scheme employs iterative tree search for complexity reduction a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8250e0ae7e797b799b0faa2fa79d77de
https://doi.org/10.1093/ietcom/e90-b.10.2897

Zobrazit plný text záznamu

A Computationally Efficient Fano-Based Sequential Detection Algorithm for V-BLAST Systems

Autor: Jongsub Cha, Joonhyuk Kang

Publikováno v: IEICE Transactions on Communications. :1528-1531

We present a computationally efficient sequential detection scheme using a modified Fano algorithm (MFA) for V-BLAST systems. The proposed algorithm consists of the following three steps: initialization, tree searching, and optimal selection. In the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4657d1bd36ce9f9f1f237229702fe8eb
https://doi.org/10.1093/ietcom/e90-b.6.1528

Zobrazit plný text záznamu

Efficient V-BLAST Detection Using Modified Fano Algorithm

Autor: Jongsub Cha, Joonhyuk Kang

Publikováno v: IEICE Transactions on Communications. :1955-1959

We propose a sub-optimal but computationally efficient Modified Fano Detection algorithm (MFD) for V-BLAST systems. This algorithm utilizes the QR decomposition of the channel matrix and the sequential detection scheme based on tree searching to find

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::500b0fb557d71d568467f6211c793890
https://doi.org/10.1093/ietcom/e89-b.6.1955

Zobrazit plný text záznamu

An efficient inter-unit interference reduction technique for a MSTTD system

Autor: Youngok Kim, Heyung-Sub Lee, Jongsub Cha

Publikováno v: IEEE Communications Letters. 14:97-99

A multiple space-time transmit diversity (MSTTD) detection scheme on quasi-static Rayleigh flat-fading channels is proposed. The proposed detection algorithm first determines the candidates for M units each using a QR decomposition, and computes a re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee77d097a9ee61f3009bc0ec6545fd6c
https://doi.org/10.1109/lcomm.2010.02.091793

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání