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ETRI Journal
(45 results)-
White Papers
Considerations of the SLA Management System
May 1, 2008, 12:00am PDT
As the high-speed Internet access service is disseminated rapidly, subscriber's concern about the Internet access service migrates from the network speed to the service quality. As this trend...
Provided by ETRI Journal
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White Papers
Forensic Data Acquisition From Cell Phones Using JTAG Interface
April 28, 2008, 12:00am PDT
With the role of cell phones in today's society as a digital personal assistant as well as the primary tool for personal communication, it is possible to imagine the involvement of cell phones in...
Provided by ETRI Journal
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White Papers
Website Registration Using Link for Privacy
May 16, 2008, 12:00am PDT
In this paper, the authors introduce a method for reducing the abuse of the personal information which is provided to the Internet website. When a user joins the general website, a user registers...
Provided by ETRI Journal
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White Papers
How to Integrate Diverse Client Authentication Protocol With Various Authentication Means
May 8, 2008, 12:00am PDT
There are various authentication means such as password, certificate and biometrics, which are used in many authentication systems. However, in general, most of authentication systems require one...
Provided by ETRI Journal
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White Papers
The Telematics Contents Providing System Based on a User's Request Using DMB Network
May 16, 2008, 12:00am PDT
The authors describe a system for providing the Telematics contents based on a user's request through DMB (Digital Multimedia Broadcasting) network. This paper includes the feature of the system...
Provided by ETRI Journal
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White Papers
The Need of MTM Interface Specification for the Trusted Mobile Platform
May 16, 2008, 12:00am PDT
In this paper the authors discuss the interface between the Mobile Trusted Module(MTM) and the mobile platform for the trusted mobile platform. And they describe about the need of MTM interface...
Provided by ETRI Journal
-
White Papers
Partial Shift Mapping for PAPR Reduction With Low Complexity in OFDM Systems
April 1, 2012, 12:00am PDT
The high peak-to-average power is one of the main drawbacks in OFDM systems. This paper proposes a Partial Shift Mapping (PSM) method for peak power reduction in OFDM systems. By utilizing the...
Provided by ETRI Journal
-
White Papers
Exploiting Multichannel Diversity in Spectrum Sharing Systems Using Optimal Stopping Rule
April 1, 2012, 12:00am PDT
This paper studies the problem of exploiting multichannel diversity in a spectrum sharing system, where the Secondary User (SU) sequentially explores channel state information on the licensed...
Provided by ETRI Journal
-
White Papers
Modified 802.11-Based Opportunistic Spectrum Access in Cognitive Radio Networks
April 1, 2012, 12:00am PDT
In this paper, a modified 802.11-based opportunistic spectrum access is proposed for single-channel cognitive radio networks where primary users operate on a slot-by-slot basis. In the authors'...
Provided by ETRI Journal
-
White Papers
Design and Optimization of Full Comparator Based on Quantum-Dot Cellular Automata
April 1, 2012, 12:00am PDT
Quantum-dot Cellular Automata (QCA) is one of the few alternative computing platforms that has the potential to be a promising technology because of higher speed, smaller size, and lower power...
Provided by ETRI Journal
-
White Papers
A New Semantic Kernel Function for Online Anomaly Detection of Software
April 1, 2012, 12:00am PDT
In this paper, a new online anomaly detection approach for software systems is proposed. The novelty of the proposed approach is to apply a new semantic kernel function for a Support Vector...
Provided by ETRI Journal
-
White Papers
Improved Wideband Precoding With Arbitrary Subcarrier Grouping in MIMO-OFDM Systems
February 1, 2012, 12:00am PST
Precoding in the multiple-input multiple-output orthogonal frequency division multiplexing system is investigated. In conventional WideBand Precoding (WBP), only one precoder, obtained from the...
Provided by ETRI Journal
-
White Papers
Secure Hardware Implementation of ARIA Based on Adaptive Random Masking Technique
February 1, 2012, 12:00am PST
The block cipher ARIA has been threatened by side-channel analysis, and much research on countermeasures of this attack has also been produced. However, studies on countermeasures of ARIA are...
Provided by ETRI Journal
-
White Papers
Tone Dual-Channel MAC Protocol With Directional Antennas for Mobile Ad Hoc Networks
February 1, 2012, 12:00am PST
The directional Medium Access Control (MAC) protocol improves the throughput of mobile ad hoc networks but has a deafness problem and requires location information for neighboring nodes. In the...
Provided by ETRI Journal
-
White Papers
Single Relay Selection for Bidirectional Cooperative Networks With Physical-Layer Network Coding
February 1, 2012, 12:00am PST
To serve the growing demand of the bidirectional information exchange, the authors propose a single Relay Selection (RS) scheme for Physical-layer Network Coding (PNC) in a bidirectional...
Provided by ETRI Journal
-
White Papers
Block-Mode Lattice Reduction for Low-Complexity MIMO Detection
February 1, 2012, 12:00am PST
The authors propose a very-low-complexity Lattice-Reduction (LR) algorithm for multi-input multi-output detection in time-varying channels. The proposed scheme reduces the complexity by performing...
Provided by ETRI Journal
-
White Papers
Small-Size and High-Isolation MIMO Antenna for WLAN
February 1, 2012, 12:00am PST
A small-sized (15 mm×30 mm) planar monopole MIMO antenna that offers high-isolation performance is presented in this letter. The antenna is miniaturized using inductive coupling within a...
Provided by ETRI Journal
-
White Papers
Hierarchical Identity-Based Encryption With Constant-Size Private Keys
February 1, 2012, 12:00am PST
The main challenge at present in constructing Hierarchical Identity-Based Encryption (HIBE) is to solve the trade-off between private-key size and ciphertext size. At least one private-key size or...
Provided by ETRI Journal
-
White Papers
Codebook-Based Precoding for SDMA-OFDMA With Spectrum Sharing
December 1, 2011, 12:00am PST
This paper focuses on codebook-based precoding for Space-Division Multiple Access/Orthogonal Frequency-Division Multiple Access (SDMA-OFDMA) systems aiming to guarantee high throughput for their...
Provided by ETRI Journal
-
White Papers
New Elements Concentrated Planar Fractal Antenna Arrays for Celestial Surveillance and Wireless Communications
December 1, 2011, 12:00am PST
This paper introduces three new fractal array configurations that have superior performance over the well-known Sierpinski fractal array. These arrays are based on the fractal shapes Dragon, Twig,...
Provided by ETRI Journal
-
White Papers
Energy-Efficient Adaptive Dynamic Sensor Scheduling for Target Monitoring in Wireless Sensor Networks
December 1, 2011, 12:00am PST
Due to uncertainties in target motion and randomness of deployed sensor nodes, the problem of imbalance of energy consumption arises from sensor scheduling. This paper presents an energy-efficient...
Provided by ETRI Journal
-
White Papers
Probabilistic Support Vector Machine Localization in Wireless Sensor Networks
December 1, 2011, 12:00am PST
Sensor networks play an important role in making the dream of ubiquitous computing a reality. With a variety of applications, sensor networks have the potential to influence everyone's life in the...
Provided by ETRI Journal
-
White Papers
Privacy-Preserving H.264 Video Encryption Scheme
December 1, 2011, 12:00am PST
As a growing number of individuals are exposed to surveillance cameras, the need to prevent captured videos from being used inappropriately has increased. Privacy-related information can be...
Provided by ETRI Journal
-
White Papers
Nash Bargaining Solution for RFID Frequency Interference
November 29, 2011, 12:00am PST
The authors present a fair and efficient solution for selfish readers with the Nash Bargaining Solution (NBS) to mitigate the effects of RFID frequency interference. They compare the NBS with a...
Provided by ETRI Journal
-
White Papers
Enhanced FCME Thresholding for Wavelet-Based Cognitive UWB Over Fading Channels
December 1, 2011, 12:00am PST
The cognitive Ultra-WideBand (UWB) network detects interfering narrowband systems and adapts its configuration accordingly. An inherently adaptive and flexible candidate for cognitive UWB...
Provided by ETRI Journal
-
White Papers
Distributed Resource Allocation in Two-Hierarchy Networks
April 1, 2012, 12:00am PDT
In this paper, a new distributed resource allocation algorithm is proposed to alleviate the cross-tier interference for orthogonal frequency division multiplexing access macrocell and femtocell...
Provided by ETRI Journal
-
White Papers
A Novel Data Transmission Scheme for ATSC Terrestrial DTV Systems
April 1, 2012, 12:00am PDT
In Advanced Television Systems Committee (ATSC) terrestrial Digital TeleVision (DTV) systems, additional very low-rate data can be transmitted by modulating the amplitude and polarity of the...
Provided by ETRI Journal
-
White Papers
Synchronization for IR-UWB System Using a Switching Phase Detector-Based Impulse Phase-Locked Loop
April 1, 2012, 12:00am PDT
Conventional synchronization algorithms for impulse radio require high-speed sampling and a precise local clock. Here, a Phase-Locked Loop (PLL) scheme is introduced to acquire and track...
Provided by ETRI Journal
-
White Papers
Impacts of Hierarchy in Ethernet Ring Networks on Service Resiliency
April 1, 2012, 12:00am PDT
In transport networks, a multi-ring architecture is very useful to facilitate network planning and to design and provide more resilient services for customers. Unlike traditional synchronous...
Provided by ETRI Journal
-
White Papers
Constructing Strong Identity-Based Designated Verifier Signatures With Self-Unverifiability
April 1, 2012, 12:00am PDT
An identity-based strong designated verifier signature scheme provides restricted verifiability only for a verifier designated by a signer and proper privacy for the signer. In this paper, the...
Provided by ETRI Journal
-
White Papers
Acceptance-Diffusion Strategies for Tablet-PCs: Focused on Acceptance Factors of Non-Users and Satisfaction Factors of Users
April 1, 2012, 12:00am PDT
Among emerging devices propelling the growth of mobile devices, smartphones and tablet-PCs are among the most recognizable. In this paper, a research model is designed for exploring...
Provided by ETRI Journal
-
White Papers
Performance Analysis of a Two-Hop Fixed-Gain MIMO Multiuser Relay Network With End-to-End Antenna Selection
April 1, 2012, 12:00am PDT
This letter analyzes the performance of a two-hop MIMO multiuser relay network with a fixed gain amplify-and-forward protocol and antenna selection at the transmitter and receiver. A new...
Provided by ETRI Journal
-
White Papers
An Efficient Soft-Output MIMO Detection Method Based on a Multiple-Channel-Ordering Technique
October 1, 2011, 12:00am PDT
In this paper, the authors propose an efficient soft-output signal detection method for spatially multiplexed Multiple-Input Multiple-Output (MIMO) systems. The proposed method is based on the...
Provided by ETRI Journal
-
White Papers
Performance of Two-User Two-Way Amplify-and-Forward Relaying Systems With Scheduling
October 1, 2011, 12:00am PDT
In this paper, the authors study scheduling schemes for two-user two-way wireless relaying systems. Two transmission modes are considered: point-to-point direct transmission and two-way...
Provided by ETRI Journal
-
White Papers
Hybrid Distributed Stochastic Addressing Scheme for ZigBee/IEEE 802.15.4 Wireless Sensor Networks
October 1, 2011, 12:00am PDT
This paper proposes hybrid distributed stochastic addressing (HDSA), which combines the advantages of distributed addressing and stochastic addressing, to solve the problems encountered when...
Provided by ETRI Journal
-
White Papers
FEROM: Feature Extraction and Refinement for Opinion Mining
October 1, 2011, 12:00am PDT
Opinion mining involves the analysis of customer opinions using product reviews and provides meaningful information including the polarity of the opinions. In opinion mining, feature extraction is...
Provided by ETRI Journal
-
White Papers
GCC2Verilog Compiler Toolset for Complete Translation of C Programming Language Into Verilog HDL
October 1, 2011, 12:00am PDT
Reconfigurable computing using a Field-Programmable Gate-Array (FPGA) device has become a promising solution in system design because of its power efficiency and design flexibility. To bring the...
Provided by ETRI Journal
-
White Papers
Cooperative Hybrid-ARQ Protocols: Unified Frameworks for Protocol Analysis
October 1, 2011, 12:00am PDT
Cooperative Hybrid-Automatic Repeat reQuest (HARQ) protocols, which can exploit the spatial and temporal diversities, have been widely studied. The efficiency of cooperative HARQ protocols is...
Provided by ETRI Journal
-
White Papers
An Efficient Network Attack Visualization Using Security Quad and Cube
October 1, 2011, 12:00am PDT
Security Quad and Cube (SQC) is a network attack analyzer that is capable of aggregating many different events into a single significant incident and visualizing these events in order to identify...
Provided by ETRI Journal
-
White Papers
A Secure Key Predistribution Scheme for WSN Using Elliptic Curve Cryptography
October 1, 2011, 12:00am PDT
Security in Wireless Sensor Networks (WSNs) is an upcoming research field which is quite different from traditional network security mechanisms. Many applications are dependent on the secure...
Provided by ETRI Journal
-
Whitepapers
Applying Hebbian Theory to Enhance Search Performance in Unstructured Social-Like Peer-to-Peer Networks
August 1, 2012, 12:00am PDT
Unstructured Peer-To-Peer (p2p) networks usually employ flooding search algorithms to locate resources. However, these algorithms often require a large storage overhead or generate massive network...
Provided by ETRI Journal
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Whitepapers
MHP: Master-Handoff Protocol for Fast and Energy-Efficient Data Transfer Over SPI in Wireless Sensing Systems
August 1, 2012, 12:00am PDT
Serial Peripheral Interface (SPI) has been identified as a bottleneck in many wireless sensing systems today. SPI is used almost universally as the physical connection between the Micro-Controller...
Provided by ETRI Journal
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Whitepapers
System-Level Performance of Spread Spectrum-Based Add-On Service Overlaid Onto the Existing Terrestrial Digital Multimedia Broadcast Band
August 1, 2012, 12:00am PDT
The authors consider an overlaid broadcast service, where a Spread Spectrum (SS)-based broadcast signal is overlaid onto the existing Terrestrial Digital Multimedia Broadcasting (T-DMB) band. The...
Provided by ETRI Journal
-
White Papers
Priority-Based Duplicate Burst Transmission Mechanism in Optical Burst Switching Networks
February 1, 2008, 12:00am PST
This paper proposes a priority-based duplicate burst transmission mechanism in an optical burst switching network to enhance the probability of successful reception of bursts. The performance of...
Provided by ETRI Journal
-
White Papers
Least Square Channel Estimation for Two-Way Relay MIMO OFDM Systems
October 1, 2011, 12:00am PDT
This paper considers the channel estimation for two-way relay MIMO OFDM systems. A Least Square (LS) channel estimation algorithm under block-based training is proposed. The Mean Square Error...
Provided by ETRI Journal
-
White Papers
A Secure Key Predistribution Scheme for WSN Using Elliptic Curve Cryptography
October 1, 2011, 12:00am PDT
Security in Wireless Sensor Networks (WSNs) is an upcoming research field which is quite different from traditional network security mechanisms. Many applications are dependent on the secure...
Provided by ETRI Journal
-
White Papers
An Efficient Network Attack Visualization Using Security Quad and Cube
October 1, 2011, 12:00am PDT
Security Quad and Cube (SQC) is a network attack analyzer that is capable of aggregating many different events into a single significant incident and visualizing these events in order to identify...
Provided by ETRI Journal
-
White Papers
Cooperative Hybrid-ARQ Protocols: Unified Frameworks for Protocol Analysis
October 1, 2011, 12:00am PDT
Cooperative Hybrid-Automatic Repeat reQuest (HARQ) protocols, which can exploit the spatial and temporal diversities, have been widely studied. The efficiency of cooperative HARQ protocols is...
Provided by ETRI Journal
-
White Papers
GCC2Verilog Compiler Toolset for Complete Translation of C Programming Language Into Verilog HDL
October 1, 2011, 12:00am PDT
Reconfigurable computing using a Field-Programmable Gate-Array (FPGA) device has become a promising solution in system design because of its power efficiency and design flexibility. To bring the...
Provided by ETRI Journal
-
White Papers
FEROM: Feature Extraction and Refinement for Opinion Mining
October 1, 2011, 12:00am PDT
Opinion mining involves the analysis of customer opinions using product reviews and provides meaningful information including the polarity of the opinions. In opinion mining, feature extraction is...
Provided by ETRI Journal
-
White Papers
Hybrid Distributed Stochastic Addressing Scheme for ZigBee/IEEE 802.15.4 Wireless Sensor Networks
October 1, 2011, 12:00am PDT
This paper proposes hybrid distributed stochastic addressing (HDSA), which combines the advantages of distributed addressing and stochastic addressing, to solve the problems encountered when...
Provided by ETRI Journal
-
White Papers
Performance of Two-User Two-Way Amplify-and-Forward Relaying Systems With Scheduling
October 1, 2011, 12:00am PDT
In this paper, the authors study scheduling schemes for two-user two-way wireless relaying systems. Two transmission modes are considered: point-to-point direct transmission and two-way...
Provided by ETRI Journal
-
White Papers
An Efficient Soft-Output MIMO Detection Method Based on a Multiple-Channel-Ordering Technique
October 1, 2011, 12:00am PDT
In this paper, the authors propose an efficient soft-output signal detection method for spatially multiplexed Multiple-Input Multiple-Output (MIMO) systems. The proposed method is based on the...
Provided by ETRI Journal
-
White Papers
Performance Analysis of a Two-Hop Fixed-Gain MIMO Multiuser Relay Network With End-to-End Antenna Selection
April 1, 2012, 12:00am PDT
This letter analyzes the performance of a two-hop MIMO multiuser relay network with a fixed gain amplify-and-forward protocol and antenna selection at the transmitter and receiver. A new...
Provided by ETRI Journal
-
White Papers
Acceptance-Diffusion Strategies for Tablet-PCs: Focused on Acceptance Factors of Non-Users and Satisfaction Factors of Users
April 1, 2012, 12:00am PDT
Among emerging devices propelling the growth of mobile devices, smartphones and tablet-PCs are among the most recognizable. In this paper, a research model is designed for exploring...
Provided by ETRI Journal
-
White Papers
Constructing Strong Identity-Based Designated Verifier Signatures With Self-Unverifiability
April 1, 2012, 12:00am PDT
An identity-based strong designated verifier signature scheme provides restricted verifiability only for a verifier designated by a signer and proper privacy for the signer. In this paper, the...
Provided by ETRI Journal
-
White Papers
Impacts of Hierarchy in Ethernet Ring Networks on Service Resiliency
April 1, 2012, 12:00am PDT
In transport networks, a multi-ring architecture is very useful to facilitate network planning and to design and provide more resilient services for customers. Unlike traditional synchronous...
Provided by ETRI Journal
-
White Papers
Synchronization for IR-UWB System Using a Switching Phase Detector-Based Impulse Phase-Locked Loop
April 1, 2012, 12:00am PDT
Conventional synchronization algorithms for impulse radio require high-speed sampling and a precise local clock. Here, a Phase-Locked Loop (PLL) scheme is introduced to acquire and track...
Provided by ETRI Journal
-
White Papers
A Novel Data Transmission Scheme for ATSC Terrestrial DTV Systems
April 1, 2012, 12:00am PDT
In Advanced Television Systems Committee (ATSC) terrestrial Digital TeleVision (DTV) systems, additional very low-rate data can be transmitted by modulating the amplitude and polarity of the...
Provided by ETRI Journal
-
White Papers
Distributed Resource Allocation in Two-Hierarchy Networks
April 1, 2012, 12:00am PDT
In this paper, a new distributed resource allocation algorithm is proposed to alleviate the cross-tier interference for orthogonal frequency division multiplexing access macrocell and femtocell...
Provided by ETRI Journal
-
White Papers
Enhanced FCME Thresholding for Wavelet-Based Cognitive UWB Over Fading Channels
December 1, 2011, 12:00am PST
The cognitive Ultra-WideBand (UWB) network detects interfering narrowband systems and adapts its configuration accordingly. An inherently adaptive and flexible candidate for cognitive UWB...
Provided by ETRI Journal
-
White Papers
Nash Bargaining Solution for RFID Frequency Interference
November 29, 2011, 12:00am PST
The authors present a fair and efficient solution for selfish readers with the Nash Bargaining Solution (NBS) to mitigate the effects of RFID frequency interference. They compare the NBS with a...
Provided by ETRI Journal
-
White Papers
Privacy-Preserving H.264 Video Encryption Scheme
December 1, 2011, 12:00am PST
As a growing number of individuals are exposed to surveillance cameras, the need to prevent captured videos from being used inappropriately has increased. Privacy-related information can be...
Provided by ETRI Journal
-
White Papers
Probabilistic Support Vector Machine Localization in Wireless Sensor Networks
December 1, 2011, 12:00am PST
Sensor networks play an important role in making the dream of ubiquitous computing a reality. With a variety of applications, sensor networks have the potential to influence everyone's life in the...
Provided by ETRI Journal
-
White Papers
Energy-Efficient Adaptive Dynamic Sensor Scheduling for Target Monitoring in Wireless Sensor Networks
December 1, 2011, 12:00am PST
Due to uncertainties in target motion and randomness of deployed sensor nodes, the problem of imbalance of energy consumption arises from sensor scheduling. This paper presents an energy-efficient...
Provided by ETRI Journal
-
White Papers
New Elements Concentrated Planar Fractal Antenna Arrays for Celestial Surveillance and Wireless Communications
December 1, 2011, 12:00am PST
This paper introduces three new fractal array configurations that have superior performance over the well-known Sierpinski fractal array. These arrays are based on the fractal shapes Dragon, Twig,...
Provided by ETRI Journal
-
White Papers
Codebook-Based Precoding for SDMA-OFDMA With Spectrum Sharing
December 1, 2011, 12:00am PST
This paper focuses on codebook-based precoding for Space-Division Multiple Access/Orthogonal Frequency-Division Multiple Access (SDMA-OFDMA) systems aiming to guarantee high throughput for their...
Provided by ETRI Journal
-
White Papers
Hierarchical Identity-Based Encryption With Constant-Size Private Keys
February 1, 2012, 12:00am PST
The main challenge at present in constructing Hierarchical Identity-Based Encryption (HIBE) is to solve the trade-off between private-key size and ciphertext size. At least one private-key size or...
Provided by ETRI Journal
-
White Papers
Small-Size and High-Isolation MIMO Antenna for WLAN
February 1, 2012, 12:00am PST
A small-sized (15 mm×30 mm) planar monopole MIMO antenna that offers high-isolation performance is presented in this letter. The antenna is miniaturized using inductive coupling within a...
Provided by ETRI Journal
-
White Papers
Block-Mode Lattice Reduction for Low-Complexity MIMO Detection
February 1, 2012, 12:00am PST
The authors propose a very-low-complexity Lattice-Reduction (LR) algorithm for multi-input multi-output detection in time-varying channels. The proposed scheme reduces the complexity by performing...
Provided by ETRI Journal
-
White Papers
Single Relay Selection for Bidirectional Cooperative Networks With Physical-Layer Network Coding
February 1, 2012, 12:00am PST
To serve the growing demand of the bidirectional information exchange, the authors propose a single Relay Selection (RS) scheme for Physical-layer Network Coding (PNC) in a bidirectional...
Provided by ETRI Journal
-
White Papers
Tone Dual-Channel MAC Protocol With Directional Antennas for Mobile Ad Hoc Networks
February 1, 2012, 12:00am PST
The directional Medium Access Control (MAC) protocol improves the throughput of mobile ad hoc networks but has a deafness problem and requires location information for neighboring nodes. In the...
Provided by ETRI Journal
-
White Papers
Secure Hardware Implementation of ARIA Based on Adaptive Random Masking Technique
February 1, 2012, 12:00am PST
The block cipher ARIA has been threatened by side-channel analysis, and much research on countermeasures of this attack has also been produced. However, studies on countermeasures of ARIA are...
Provided by ETRI Journal
-
White Papers
Improved Wideband Precoding With Arbitrary Subcarrier Grouping in MIMO-OFDM Systems
February 1, 2012, 12:00am PST
Precoding in the multiple-input multiple-output orthogonal frequency division multiplexing system is investigated. In conventional WideBand Precoding (WBP), only one precoder, obtained from the...
Provided by ETRI Journal
-
White Papers
A New Semantic Kernel Function for Online Anomaly Detection of Software
April 1, 2012, 12:00am PDT
In this paper, a new online anomaly detection approach for software systems is proposed. The novelty of the proposed approach is to apply a new semantic kernel function for a Support Vector...
Provided by ETRI Journal
-
White Papers
Design and Optimization of Full Comparator Based on Quantum-Dot Cellular Automata
April 1, 2012, 12:00am PDT
Quantum-dot Cellular Automata (QCA) is one of the few alternative computing platforms that has the potential to be a promising technology because of higher speed, smaller size, and lower power...
Provided by ETRI Journal
-
White Papers
Modified 802.11-Based Opportunistic Spectrum Access in Cognitive Radio Networks
April 1, 2012, 12:00am PDT
In this paper, a modified 802.11-based opportunistic spectrum access is proposed for single-channel cognitive radio networks where primary users operate on a slot-by-slot basis. In the authors'...
Provided by ETRI Journal
-
White Papers
Exploiting Multichannel Diversity in Spectrum Sharing Systems Using Optimal Stopping Rule
April 1, 2012, 12:00am PDT
This paper studies the problem of exploiting multichannel diversity in a spectrum sharing system, where the Secondary User (SU) sequentially explores channel state information on the licensed...
Provided by ETRI Journal
-
White Papers
Partial Shift Mapping for PAPR Reduction With Low Complexity in OFDM Systems
April 1, 2012, 12:00am PDT
The high peak-to-average power is one of the main drawbacks in OFDM systems. This paper proposes a Partial Shift Mapping (PSM) method for peak power reduction in OFDM systems. By utilizing the...
Provided by ETRI Journal
-
White Papers
The Need of MTM Interface Specification for the Trusted Mobile Platform
May 16, 2008, 12:00am PDT
In this paper the authors discuss the interface between the Mobile Trusted Module(MTM) and the mobile platform for the trusted mobile platform. And they describe about the need of MTM interface...
Provided by ETRI Journal
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