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Texas A&M International University
(29 results)-
Whitepapers
Threshold Saturation of Spatially-Coupled Codes on Intersymbol-Interference Channels
May 24, 2012, 12:00am PDT
Recently, it has been observed that terminated LowDensity-Parity-Check (LDPC) convolutional codes (or spatially-coupled codes) appear to approach the capacity universally across the class of...
Provided by Texas A&M International University
-
Whitepapers
Reactive Relay Selection in Underlay Cognitive Networks With Fixed Gain Relays
May 24, 2012, 12:00am PDT
Best relay selection is a bandwidth efficient technique for multiple relay environments without compromising the system performance. The problem of relay selection is more challenging in underlay...
Provided by Texas A&M International University
-
Whitepapers
Delay-Constrained Gaussian Relay Channel With Energy Harvesting Nodes
May 24, 2012, 12:00am PDT
This paper considers the use of energy harvesters, instead of conventional time-invariant energy sources, in wireless cooperative communication. For the purpose of exposition, the authors study...
Provided by Texas A&M International University
-
Whitepapers
A Density Evolution Based Framework for Dirty Paper Code Design Using TCQ and Multilevel LDPC Codes
May 24, 2012, 12:00am PDT
The authors propose a density evolution based dirty-paper code design framework that combines trellis coded quantization with multi-level Low-Density Parity-Check (LDPC) codes. Unlike existing...
Provided by Texas A&M International University
-
Whitepapers
QoS Driven Power Allocation Over Full-Duplex Wireless Links
May 24, 2012, 12:00am PDT
The authors propose the Quality-of-Service (QoS) driven power allocation scheme for full-duplex wireless links. By integrating information theory with the principle of effective capacity, they...
Provided by Texas A&M International University
-
Whitepapers
Self-Organized Resource Allocation in LTE Systems With Weighted Proportional Fairness
May 24, 2012, 12:00am PDT
The authors consider the problem of LTE network self organization and optimization of resource allocation. One particular challenge for LTE systems is that, by applying OFDMA, a transmission may...
Provided by Texas A&M International University
-
Whitepapers
Maximizing Effective Capacity Over Wireless Links Under Average and Peak Power Constraints
May 24, 2012, 12:00am PDT
The authors propose the Quality-of-Service (QoS) driven power allocation scheme for wireless links under average and peak power constraints. By integrating information theory with the principle of...
Provided by Texas A&M International University
-
Whitepapers
Robust Beamforming With Channel Uncertainty for Two-Way Relay Networks
May 24, 2012, 12:00am PDT
This paper presents the design of a robust beamforming scheme for a two-way relay network, composed of one multi-antenna relay and two single-antenna terminals, with the consideration of channel...
Provided by Texas A&M International University
-
Whitepapers
A Non-Monetary Protocol for Peer-to-Peer Content Distribution in Wireless Broadcast Networks with Network Coding
December 9, 2012, 12:00am PST
This paper studies the problem of content distribution in wireless peer-to-peer networks where all nodes are selfish and non-cooperative. The authors propose a model that considers both the...
Provided by Texas A&M International University
-
Whitepapers
Maximizing the Storage Capacity of Nonvolatile Memories
February 5, 2011, 12:00am PST
The authors propose variable-level cell, a new data representation scheme, for nonvolatile memories (including flash memories, phase-change memories, etc.). They derive its storage capacity, and...
Provided by Texas A&M International University
-
Whitepapers
Information Representation and Coding for Flash Memories
August 5, 2009, 12:00am PDT
In this paper, the authors survey the recent results on information representation and coding for flash memories. Flash memories are a milestone in the development of the data storage technology....
Provided by Texas A&M International University
-
Whitepapers
On the Capacity of Flash Memories
December 10, 2008, 12:00am PST
Flash memories are the most widely used type of nonvolatile electronic memories. Compared to magnetic recording and optical recording, flash memories have the unique property that their cell...
Provided by Texas A&M International University
-
Whitepapers
Error-Correcting Codes for Rank Modulation
July 11, 2008, 12:00am PDT
The authors investigate error-correcting codes for a novel storage technology for flash memories, the rank-modulation scheme. In this scheme, a set of n cells stores information in the permutation...
Provided by Texas A&M International University
-
Whitepapers
FRESCO: Modular Composable Security Services for Software-Defined Networks
January 11, 2013, 12:00am PST
OpenFlow is an open standard that has gained tremendous interest in the last few years within the network community. It is an embodiment of the software-defined networking paradigm, in which...
Provided by Texas A&M International University
-
Whitepapers
NEIGHBORWATCHER: A Content-Agnostic Comment Spam Inference System
January 11, 2013, 12:00am PST
Comment spam has become a popular means for spammers to attract direct visits to target websites, or to manipulate search ranks of the target websites. Through posting a small number of spam...
Provided by Texas A&M International University
-
Whitepapers
Shadow Attacks: Automatically Evading System-Call-Behavior Based Malware Detection
December 26, 2011, 12:00am PST
Contemporary malware makes extensive use of different techniques such as packing, code obfuscation, polymorphism, and metamorphism, to evade signature-based detection. Traditional signature-based...
Provided by Texas A&M International University
-
Whitepapers
CloudWatcher: Network Security Monitoring Using OpenFlow in Dynamic Cloud Networks (or: How to Provide Security Monitoring as a Service in Clouds?)
September 20, 2012, 12:00am PDT
Cloud computing is becoming a popular paradigm. Many recent new services are based on cloud environments, and a lot of people are using cloud networks. Since many diverse hosts and network...
Provided by Texas A&M International University
-
Whitepapers
Distributed Position Localization and Tracking (DPLT) of Malicious Nodes in Cluster Based Mobile Ad Hoc Networks (MANET)
November 1, 2010, 12:00am PDT
In this paper, a robust distributed malicious node detection and precise localization and tracking method is proposed for Cluster based Mobile Ad-hoc NETwork (MANET). Certificate Authority (CA)...
Provided by Texas A&M International University
-
Whitepapers
Joint Spectrum and Power Efficiencies Optimization for Statistical QoS Provisionings in Wireless Networks
November 21, 2012, 12:00am PST
Spectrum and power efficiencies are both crucial to design efficient wireless networks. In past two decades, spectrum and power efficiencies of wireless networks are optimized separately. However,...
Provided by Texas A&M International University
-
Whitepapers
A Novel Security-Oriented Cooperative Scheme for Wireless Relay Networks in Presence of Eavesdroppers
November 21, 2012, 12:00am PST
In order to conserve energy and achieve better Quality of Service (QoS) provisioning, this paper proposes a Novel Security-Oriented Cooperative (NSOC) scheme for distributed wireless relay...
Provided by Texas A&M International University
-
Whitepapers
An Energy-Aware Protocol for Self-Organizing Heterogeneous LTE Systems
February 12, 2013, 12:00am PST
This paper studies the problem of self-organizing heterogeneous LTE systems. The authors propose a model that jointly considers several important characteristics of heterogeneous LTE system,...
Provided by Texas A&M International University
-
Whitepapers
Cramer-Rao Lower Bound for the Clock Offset of Silent Nodes Synchronizing Through a General Sender-Receiver Protocol in Wireless Sensornets
August 29, 2008, 12:00am PDT
Agreement on a common time reference among the nodes is one of the most critical issues in the successful operation of the Wireless Sensor Networks (WSNs). The Maximum Likelihood Estimator (MLE)...
Provided by Texas A&M International University
-
Whitepapers
Dual Branch Transmit Switch-and-Stay Diversity for Underlay Cognitive Networks
February 19, 2011, 12:00am PST
In this paper, the authors study applying dual branch transmit Switch-and-Stay Combining (SSC) technique for Underlay Cognitive Radio (UCR) networks. In UCR, the secondary user is allowed to share...
Provided by Texas A&M International University
-
Whitepapers
Performance Analysis of TOA Range Accuracy Adaptation for Cognitive Radio Systems
June 17, 2009, 12:00am PDT
Location awareness is a prominent feature of Cognitive Radio (CR) systems. In order to support goal driven and autonomous location aware applications using CR systems, range accuracy adaptation is...
Provided by Texas A&M International University
-
Whitepapers
Achievable Capacity of a Spectrum Sharing System Over Hyper Fading Channels
July 28, 2009, 12:00am PDT
Cognitive radio with spectrum sharing feature is a promising technique to address the spectrum under-utilization problem in dynamically changing environments. In this paper, achievable capacity...
Provided by Texas A&M International University
-
Whitepapers
Delay-Throughput Tradeoff for Supportive Two-Tier Networks: A Static Primary Tier vs. a Mobile Secondary Tier
October 27, 2009, 12:00am PDT
Inspired by the seminal work of Gupta and Kumar, the capacity of large-scale ad-hoc networks has been extensively studied in the literature. Consider a wireless network of two tiers with different...
Provided by Texas A&M International University
-
Whitepapers
First-Passage Time and Large-Deviation Analysis for Erasure Channels With Memory
April 25, 2013, 12:00am PDT
This paper considers the performance of digital communication systems transmitting messages over finite-state erasure channels with memory. Information bits are protected from channel erasures...
Provided by Texas A&M International University
-
Whitepapers
E-LPG: Energy Efficient Location Privacy Scheme Against Global Attackers in Sensor Networks
March 23, 2013, 12:00am PDT
Many sensor network security schemes protect the content of messages, while the contextual information is left vulnerable by disclosing the location of the monitored objects. Preserving location...
Provided by Texas A&M International University
-
White Papers
Statistical Quality Control Approaches to Network Intrusion Detection
November 1, 2011, 12:00am PDT
In the study of network intrusion, much attention has been drawn to on-time detection of intrusion to safeguard public and private interest and to capture the law-breakers. Even though various...
Provided by Texas A&M International University
-
Whitepapers
E-LPG: Energy Efficient Location Privacy Scheme Against Global Attackers in Sensor Networks
March 23, 2013, 12:00am PDT
Many sensor network security schemes protect the content of messages, while the contextual information is left vulnerable by disclosing the location of the monitored objects. Preserving location...
Provided by Texas A&M International University
-
Whitepapers
First-Passage Time and Large-Deviation Analysis for Erasure Channels With Memory
April 25, 2013, 12:00am PDT
This paper considers the performance of digital communication systems transmitting messages over finite-state erasure channels with memory. Information bits are protected from channel erasures...
Provided by Texas A&M International University
-
Whitepapers
Delay-Throughput Tradeoff for Supportive Two-Tier Networks: A Static Primary Tier vs. a Mobile Secondary Tier
October 27, 2009, 12:00am PDT
Inspired by the seminal work of Gupta and Kumar, the capacity of large-scale ad-hoc networks has been extensively studied in the literature. Consider a wireless network of two tiers with different...
Provided by Texas A&M International University
-
Whitepapers
Achievable Capacity of a Spectrum Sharing System Over Hyper Fading Channels
July 28, 2009, 12:00am PDT
Cognitive radio with spectrum sharing feature is a promising technique to address the spectrum under-utilization problem in dynamically changing environments. In this paper, achievable capacity...
Provided by Texas A&M International University
-
Whitepapers
Performance Analysis of TOA Range Accuracy Adaptation for Cognitive Radio Systems
June 17, 2009, 12:00am PDT
Location awareness is a prominent feature of Cognitive Radio (CR) systems. In order to support goal driven and autonomous location aware applications using CR systems, range accuracy adaptation is...
Provided by Texas A&M International University
-
Whitepapers
Dual Branch Transmit Switch-and-Stay Diversity for Underlay Cognitive Networks
February 19, 2011, 12:00am PST
In this paper, the authors study applying dual branch transmit Switch-and-Stay Combining (SSC) technique for Underlay Cognitive Radio (UCR) networks. In UCR, the secondary user is allowed to share...
Provided by Texas A&M International University
-
Whitepapers
Cramer-Rao Lower Bound for the Clock Offset of Silent Nodes Synchronizing Through a General Sender-Receiver Protocol in Wireless Sensornets
August 29, 2008, 12:00am PDT
Agreement on a common time reference among the nodes is one of the most critical issues in the successful operation of the Wireless Sensor Networks (WSNs). The Maximum Likelihood Estimator (MLE)...
Provided by Texas A&M International University
-
Whitepapers
An Energy-Aware Protocol for Self-Organizing Heterogeneous LTE Systems
February 12, 2013, 12:00am PST
This paper studies the problem of self-organizing heterogeneous LTE systems. The authors propose a model that jointly considers several important characteristics of heterogeneous LTE system,...
Provided by Texas A&M International University
-
Whitepapers
A Novel Security-Oriented Cooperative Scheme for Wireless Relay Networks in Presence of Eavesdroppers
November 21, 2012, 12:00am PST
In order to conserve energy and achieve better Quality of Service (QoS) provisioning, this paper proposes a Novel Security-Oriented Cooperative (NSOC) scheme for distributed wireless relay...
Provided by Texas A&M International University
-
Whitepapers
Joint Spectrum and Power Efficiencies Optimization for Statistical QoS Provisionings in Wireless Networks
November 21, 2012, 12:00am PST
Spectrum and power efficiencies are both crucial to design efficient wireless networks. In past two decades, spectrum and power efficiencies of wireless networks are optimized separately. However,...
Provided by Texas A&M International University
-
Whitepapers
Distributed Position Localization and Tracking (DPLT) of Malicious Nodes in Cluster Based Mobile Ad Hoc Networks (MANET)
November 1, 2010, 12:00am PDT
In this paper, a robust distributed malicious node detection and precise localization and tracking method is proposed for Cluster based Mobile Ad-hoc NETwork (MANET). Certificate Authority (CA)...
Provided by Texas A&M International University
-
Whitepapers
CloudWatcher: Network Security Monitoring Using OpenFlow in Dynamic Cloud Networks (or: How to Provide Security Monitoring as a Service in Clouds?)
September 20, 2012, 12:00am PDT
Cloud computing is becoming a popular paradigm. Many recent new services are based on cloud environments, and a lot of people are using cloud networks. Since many diverse hosts and network...
Provided by Texas A&M International University
-
Whitepapers
Shadow Attacks: Automatically Evading System-Call-Behavior Based Malware Detection
December 26, 2011, 12:00am PST
Contemporary malware makes extensive use of different techniques such as packing, code obfuscation, polymorphism, and metamorphism, to evade signature-based detection. Traditional signature-based...
Provided by Texas A&M International University
-
Whitepapers
NEIGHBORWATCHER: A Content-Agnostic Comment Spam Inference System
January 11, 2013, 12:00am PST
Comment spam has become a popular means for spammers to attract direct visits to target websites, or to manipulate search ranks of the target websites. Through posting a small number of spam...
Provided by Texas A&M International University
-
Whitepapers
FRESCO: Modular Composable Security Services for Software-Defined Networks
January 11, 2013, 12:00am PST
OpenFlow is an open standard that has gained tremendous interest in the last few years within the network community. It is an embodiment of the software-defined networking paradigm, in which...
Provided by Texas A&M International University
-
Whitepapers
Error-Correcting Codes for Rank Modulation
July 11, 2008, 12:00am PDT
The authors investigate error-correcting codes for a novel storage technology for flash memories, the rank-modulation scheme. In this scheme, a set of n cells stores information in the permutation...
Provided by Texas A&M International University
-
Whitepapers
On the Capacity of Flash Memories
December 10, 2008, 12:00am PST
Flash memories are the most widely used type of nonvolatile electronic memories. Compared to magnetic recording and optical recording, flash memories have the unique property that their cell...
Provided by Texas A&M International University
-
Whitepapers
Information Representation and Coding for Flash Memories
August 5, 2009, 12:00am PDT
In this paper, the authors survey the recent results on information representation and coding for flash memories. Flash memories are a milestone in the development of the data storage technology....
Provided by Texas A&M International University
-
Whitepapers
Maximizing the Storage Capacity of Nonvolatile Memories
February 5, 2011, 12:00am PST
The authors propose variable-level cell, a new data representation scheme, for nonvolatile memories (including flash memories, phase-change memories, etc.). They derive its storage capacity, and...
Provided by Texas A&M International University
-
Whitepapers
A Non-Monetary Protocol for Peer-to-Peer Content Distribution in Wireless Broadcast Networks with Network Coding
December 9, 2012, 12:00am PST
This paper studies the problem of content distribution in wireless peer-to-peer networks where all nodes are selfish and non-cooperative. The authors propose a model that considers both the...
Provided by Texas A&M International University
-
Whitepapers
Robust Beamforming With Channel Uncertainty for Two-Way Relay Networks
May 24, 2012, 12:00am PDT
This paper presents the design of a robust beamforming scheme for a two-way relay network, composed of one multi-antenna relay and two single-antenna terminals, with the consideration of channel...
Provided by Texas A&M International University
-
Whitepapers
Maximizing Effective Capacity Over Wireless Links Under Average and Peak Power Constraints
May 24, 2012, 12:00am PDT
The authors propose the Quality-of-Service (QoS) driven power allocation scheme for wireless links under average and peak power constraints. By integrating information theory with the principle of...
Provided by Texas A&M International University
-
Whitepapers
Self-Organized Resource Allocation in LTE Systems With Weighted Proportional Fairness
May 24, 2012, 12:00am PDT
The authors consider the problem of LTE network self organization and optimization of resource allocation. One particular challenge for LTE systems is that, by applying OFDMA, a transmission may...
Provided by Texas A&M International University
-
Whitepapers
QoS Driven Power Allocation Over Full-Duplex Wireless Links
May 24, 2012, 12:00am PDT
The authors propose the Quality-of-Service (QoS) driven power allocation scheme for full-duplex wireless links. By integrating information theory with the principle of effective capacity, they...
Provided by Texas A&M International University
-
Whitepapers
A Density Evolution Based Framework for Dirty Paper Code Design Using TCQ and Multilevel LDPC Codes
May 24, 2012, 12:00am PDT
The authors propose a density evolution based dirty-paper code design framework that combines trellis coded quantization with multi-level Low-Density Parity-Check (LDPC) codes. Unlike existing...
Provided by Texas A&M International University
-
Whitepapers
Delay-Constrained Gaussian Relay Channel With Energy Harvesting Nodes
May 24, 2012, 12:00am PDT
This paper considers the use of energy harvesters, instead of conventional time-invariant energy sources, in wireless cooperative communication. For the purpose of exposition, the authors study...
Provided by Texas A&M International University
-
Whitepapers
Reactive Relay Selection in Underlay Cognitive Networks With Fixed Gain Relays
May 24, 2012, 12:00am PDT
Best relay selection is a bandwidth efficient technique for multiple relay environments without compromising the system performance. The problem of relay selection is more challenging in underlay...
Provided by Texas A&M International University
-
Whitepapers
Threshold Saturation of Spatially-Coupled Codes on Intersymbol-Interference Channels
May 24, 2012, 12:00am PDT
Recently, it has been observed that terminated LowDensity-Parity-Check (LDPC) convolutional codes (or spatially-coupled codes) appear to approach the capacity universally across the class of...
Provided by Texas A&M International University
-
White Papers
Statistical Quality Control Approaches to Network Intrusion Detection
November 1, 2011, 12:00am PDT
In the study of network intrusion, much attention has been drawn to on-time detection of intrusion to safeguard public and private interest and to capture the law-breakers. Even though various...
Provided by Texas A&M International University
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