Search Results - "Jin-up Kim"
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The Design Method and Performance Analysis of RF Subsampling Frontend for SDR/CR Receivers
Published in IEEE transactions on industrial electronics (1982) (01-05-2010)“…RF subsampling can be used by radio receivers to directly down convert and digitize RF signals. The goal of software-defined radio (SDR) design is to place…”
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Journal Article -
2
Design and compensation of second-order sub-sampling digital frontend
Published in Journal of Central South University (01-02-2012)“…The problem of designing a digital frontend (DFE) was considered which can dynamically access or sense dual bands in any radio frequency (RF) regions without…”
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Journal Article -
3
Non-contrast low-dose CT can be used for volumetry of ADPKD
Published in BMC nephrology (26-10-2023)“…Abstract Background Kidney volume provides important information for the diagnosis and prognosis of autosomal dominant polycystic kidney disease (ADPKD), as…”
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4
Modified Dummy Sequence Insertion Method for PAPR Reduction of OFDM Signal
Published in 2007 IEEE 66th Vehicular Technology Conference (01-09-2007)“…One of the major drawbacks of the OFDM system is a large peak to average power ratio. This leads to performance degradation due to nonlinear distortion in the…”
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Conference Proceeding
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5
Multicarrier Transmission Peak-to-Average Power Reduction Using Redundant Bit Scrambling
Published in 2007 IEEE 66th Vehicular Technology Conference (01-09-2007)“…One of the major drawbacks of OFDM systems is the high peak-to-average power ratio (PAPR). This high PAPR likely causes performance degradation due to…”
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Conference Proceeding -
6
Cascaded Resource Allocation among Prioritized Shared Spectrum Blocks
Published in 2010 IEEE 71st Vehicular Technology Conference (01-05-2010)“…Dynamic spectrum access (DSA) has received much attention in recent years as an effort to enhance the spectrum utilization. Primary-secondary usage (PSU) of…”
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Conference Proceeding -
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Efficient SNR estimation in OFDM system
Published in 2011 IEEE Radio and Wireless Symposium (01-01-2011)“…It is very important to estimate the signal to noise ratio (SNR) of received signal and to transmit the signal effectively for the modern communication system…”
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Conference Proceeding -
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A Modified Min Sum Decoding Algorithm based on Approximation Enhancement for LDPC Codes
Published in 2020 International Conference on Information and Communication Technology Convergence (ICTC) (21-10-2020)“…Min-sum algorithm(MSA) and its modification are used in LDPC decoder implementations because of its error performance and low computation complexity. In this…”
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Conference Proceeding -
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Analysis and design of SLM based DFT spreading OFDM system for active anti-jamming system
Published in 2011 IEEE Radio and Wireless Symposium (01-01-2011)“…DFT (discrete Fourier transform) spread OFDM is used a lot to solve high PAPR problem of OFDM (orthogonal frequency division multiplexing) system. However,…”
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Conference Proceeding -
10
Suppression of synchronization errors in OFDM based carrier aggregation system
Published in 2010 16th Asia-Pacific Conference on Communications (APCC) (01-10-2010)“…OFDM (Orthogonal Frequency Division Multiplexing) has been chosen as the air interface technique for LTE (Long Term Evolution) standard. Furthermore, CA…”
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Conference Proceeding -
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Design and Verification of Low Latency Access Network based on Mobile Edge Computing
Published in 2020 International Conference on Information and Communication Technology Convergence (ICTC) (21-10-2020)“…This paper deals with an access system for end-to-end low latency services in mobile communication systems. The MEC (Mobile Edge Computing) concept was…”
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Conference Proceeding -
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4376 THE ASSOCIATION AMONG CAROTID IMT, PWV AND VASCULAR ACCESS FAILURE IN HEMODIALYSIS PATIENTS
Published in Nephrology, dialysis, transplantation (14-06-2023)“…Abstract Background and Aims Patients with chronic kidney disease (CKD) or end stage renal disease (ESRD) have an increased risk of cardiovascular mortality…”
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Journal Article -
13
Local breakout of mobile access network traffic by mobile edge computing
Published in 2016 International Conference on Information and Communication Technology Convergence (ICTC) (01-10-2016)“…Rapid growth of mobile traffic can be load of mobile operator's core network. Local breakout is a offloading solution of access network to save core network…”
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Conference Proceeding -
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Virtualization and Orchestration of Radio Access Network
Published in 2018 IEEE International Conference on Communication Systems (ICCS) (01-12-2018)“…This paper discusses orchestration of RAN systems implemented with virtualization. The 5G mobile communication system should have one flexible network…”
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Conference Proceeding -
15
Probabilistic zone transition mobility model for Multi-Radio Overlay Networks simulation
Published in 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications (01-09-2009)“…Future wireless communication systems are expected to be comprised of multiple overlay networks, in which different kinds of Radio Access Technologies (RATs)…”
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Conference Proceeding -
16
A New Spectral Correlation Approach to Spectrum Sensing for 802.22 WRAN System
Published in The 2007 International Conference on Intelligent Pervasive Computing (IPC 2007) (01-10-2007)“…rapidly, much attention has been paid on the use of spectrum resources. Recently, a new technology called Cognitive Radio (CR) was developed for using the…”
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Conference Proceeding -
17
Optimal detection considering AGC effects in multiple antenna systems
Published in 2008 IEEE International Symposium on Consumer Electronics (01-04-2008)“…Most detection methods for multiple input multiple output (MIMO) systems are derived with an assumption that the noise from multiple receive paths is white…”
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Conference Proceeding -
18
A Convolution Coding Scheme for PAR Reduction in WLAN-OFDM System
Published in The 2007 International Conference on Intelligent Pervasive Computing (IPC 2007) (01-10-2007)“…Orthogonal frequency division multiplexing (OFDM) is used to achieve the high-speed data transmission over fading channel. However, the main disadvantage of…”
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Conference Proceeding -
19
Multiple-Decision-Feedback Detection for STBC over Time-Selective Fading Channels
Published in VTC Spring 2009 - IEEE 69th Vehicular Technology Conference (01-04-2009)“…This paper introduces an efficient multiple-decision-feedback (MDF) detection for space time block code (STBC) over time-selective fading channels. The MDF…”
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Conference Proceeding -
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Block Type Pilot Protection Technique for Clipping in OFDM Systems
Published in The 9th International Conference on Advanced Communication Technology (01-02-2007)“…One of the drawbacks in an OFDM system is the high peak to average power ratio (PAPR). Among a number of techniques to reduce the high PAPR, clipping is the…”
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Conference Proceeding