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Institute of Electrical and Electronics Engineers
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Self-Healing Spyware: Detection, and Remediation
December 1, 2007, 12:00am PST
Spyware has become a significant threat to most Internet users as it introduces serious privacy disclosure, and potential security breach to the systems. It has not only utilized critical areas of...
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Query Sensitive Storage for Wireless Sensor Networks
July 28, 2009, 12:00am PDT
Storage management in wireless sensor networks is an area that has started to attract significant attention, and several methods have been proposed, such as Local Storage (LS), Data-Centric...
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White Papers
A High Dynamic Range Multi-Standard CMOS Mixer for GSM, UMTS and IEEE802.11b-g-a Applications
January 1, 2008, 12:00am PST
Software defined radios are a topic of intense research and constitute one key industry need for future generation wireless products. This paper investigates the down-conversion mixer, a...
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On the Performance of Hybrid GPS/GSM Mobile Terminal Tracking
July 3, 2009, 12:00am PDT
The Global Positioning System (GPS) has become one of the state-of-the-art location systems that offer reliable Mobile Terminal (MT) location estimates. However, there exist situations where GPS...
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Enriching Web Based Computer Supported Collaborative Learning Systems by Considering Misunderstandings Among Learners During Interactions
July 22, 2009, 12:00am PDT
Remote collaboration has many benefits; however, due to the geographical distribution of learners, many misunderstandings can occur during interaction. For example, learners may miss the context...
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Limiting Uncertainty in Intrusion Response
January 1, 2010, 12:00am PST
This paper explores techniques for limiting uncertainty in adaptive intrusion response systems and specifically in the Adaptive, Agent-based Intrusion Response System (AAIRS). Research by Cohen...
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Differentiated Ethernet Congestion Management for Prioritized Traffic
April 15, 2010, 12:00am PDT
This paper proposes and studies a differentiated congestion control for Ethernet congestion management. Following the popular approach that uses a cooperation of an Additive Increase and...
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Improving Label Space Usage for Ethernet Label Switched Paths
February 22, 2010, 12:00am PST
Ethernet is becoming the dominant aggregation technology for carrier transport networks; however, as it is a LAN technology, native bridged Ethernet does not fulfill all the carrier requirements....
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Classifying Ethernet Data Packets Based on Raw Bit Patterns
June 17, 2010, 12:00am PDT
Currently most operations on network data packets are controlled by the applicable protocols such as TCP/IP. However, there is scope to examine and classify the data without resorting to...
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Multi-Point Ethernet Over Next-Generation SONET/SDH
April 23, 2010, 12:00am PDT
Advances in SONET/SDH technologies have introduced novel features for improved services mapping and provisioning, enabling many new avenues for new Carrier Ethernet support. However...
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White Papers
Cross-Layer Communications for High-Bandwidth Optical Networks
June 7, 2010, 12:00am PDT
A major challenge in meeting the enhanced performance requirements of next-generation optical networks is overcoming the rigid limitations due to network layering. The work addresses this issue by...
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LDPC-Coded OFDM for Heterogeneous Access Optical Networks
August 1, 2010, 12:00am PDT
This paper proposes a heterogeneous optical access networking scenario, in which communication links between source and destination nodes are heterogeneous, composed of free-space optical, Plastic...
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Physical Layer Impairment Aware Routing (PLIAR) in WDM Optical Networks: Issues and Challenges
February 23, 2010, 12:00am PST
In WDM optical networks, the Physical Layer Impairments (PLIs) and their significance depend on network type - opaque, translucent, or transparent; the reach - access, metro, or core/long-haul;...
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Avoiding Path-Vectors in Multi-Domain Optical Networks
April 12, 2010, 12:00am PDT
One of the key building blocks of optical internetworking is the Routing and Wavelength Assignment (RWA) protocol. The consolidation of the Border Gateway Protocol (BGP) has motivated the proposal...
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White Papers
High-Bit-Rate Dense SS-WDM PON Using SOA-Based Noise Reduction With a Novel Balanced Detection
November 15, 2009, 12:00am PST
The major drawback of incoherent Broadband Sources (BBSs) is their inherent intensity noise. Semiconductor Optical Amplifiers (SOAs) can be exploited at the transmitter to mitigate this noise....
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160 Gb/s Time-Domain Channel Extraction/ Insertion and All-Optical Logic Operations Exploiting a Single PPLN Waveguide
October 1, 2009, 12:00am PDT
160 Gb/s all-optical signal processing is demonstrated exploiting pump depletion in addition to sum and difference frequency generation (SFG/DFG) in a single Periodically Poled Lithium-Niobate...
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White Papers
Optical Interconnection Networks Based on Microring Resonators
July 7, 2010, 12:00am PDT
Interconnection networks must transport an always increasing information density and connect a rising number of processing units. Electronic technologies have been able to sustain the traffic...
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White Papers
Path Monitoring for Restoration Functions in Optical Packet-Switched Networks
July 6, 2010, 12:00am PDT
The increasing demand in the Internet network for real-time multimedia data traffic with high quality is pushing the limits of existing network structure. Optical Packet Switching (OPS) is...
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White Papers
Energy Efficient Optical Burst Switched (OBS) Networks
June 8, 2010, 12:00am PDT
Information and Communication Technology (ICT) has a profound impact on the economy and the environment. A study estimated that the Internet equipment consumed roughly 8 % of the total energy...
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Increasing the Efficiency of a Brazilian Emergency Response Call Center
April 24, 2009, 12:00am PDT
This paper presents solutions to increase efficiency and reduce response times at an Emergency Call Center in the southernmost state of Brazil, Rio Grande do Sul. Utilizing macro-ergonomic design,...
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White Papers
MP-Collaborator: A Mobile Collaboration Tool in Pervasive Environment
October 23, 2009, 12:00am PDT
In modern organizations, the communication between collaborators is essential to improve productivity. There is a need for mobile collaboration tools that allow efficient collaboration among staff...
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Collaboration Tools for Global Software Engineering
March 10, 2010, 12:00am PST
Tools are essential to collaboration among team members, enabling the facilitation, automation, and control of the entire development process. Adequate tool support is especially needed in global...
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White Papers
Comparing Passive Network Monitoring of Grid Application Traffic with Active Probes
January 1, 2010, 12:00am PST
Distributed applications require timely network measurements so that they can adapt to changing network conditions and make efficient use of grid resources. One of the key issues in obtaining...
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White Papers
Fiber-Optic Sensing: A Historical Perspective
May 1, 2008, 12:00am PDT
Sensing via fiber optics has occupied R&D groups for over 40 years, and some important transitions into the commercial sector have been achieved. The authors look at the fundamental concepts...
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White Papers
Design Exploration of Optical Interconnection Networks for Chip Multiprocessors
September 11, 2008, 12:00am PDT
The Network-on-Chip (NoC) paradigm has emerged as a promising solution for providing connectivity among the increasing number of cores that get integrated into both Systems-on Chip (SoC) and Chip...
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A Combined Regular-Logarithmic Perturbation Method for Signal-Noise Interaction in Amplified Optical Systems
August 15, 2009, 12:00am PDT
This paper presents a novel perturbation method for the nonlinear Schrödinger equation (NLSE) that governs the propagation of light in optical fibers. Authors apply this method to study...
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White Papers
A Novel View on Passive Optical Network Strategies in the Computer Communication
August 31, 2010, 12:00am PDT
A Passive Optical Network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve...
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White Papers
Guidelines for Connection-Level Performance Simulation of Optical Networks
January 27, 2010, 12:00am PST
Simulation of optical networks that set up and tear down connections dynamically involves defining the network and traffic model as well as configuring the simulator itself, to investigate a...
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White Papers
Supporting Differentiated Survivability Services in WDM Optical Networks
August 27, 2008, 12:00am PDT
Optical networks are currently widely employed to support a variety of telecommunications and other applications. In order to provide the increased bandwidth needed by the existing and emerging...
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White Papers
Green Networks: Energy Efficient Design for Optical Networks
June 19, 2009, 12:00am PDT
In this paper authors discuss new energy efficient paradigms for optical networks. With the increasing number of high bandwidth applications, devices used in backbone networks such as optical...
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White Papers
Performance of VoIP Services Over 3GPP WCDMA Networks
July 1, 2008, 12:00am PDT
The paper analyzes the performance of voice services over 3GPP WCDMA Networks for Release 99 and Release 7 deployments. This paper shows, by using simulations, that the system capacity of Release...
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White Papers
Detailed Analysis of Skype Traffic
January 1, 2009, 12:00am PST
Skype is beyond any doubt the VoIP application in the current Internet application spectrum. Its amazing success has drawn the attention of telecom operators and the research community, both...
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Tracking Encrypted VoIP Calls Via Robust Hashing of Network Flows
March 13, 2010, 12:00am PST
In this work the authors propose a Voice over IP (VoIP) call tracking scheme based on robust hashing of VoIP flows. In the proposed scheme the audio content of a possibly encrypted VoIP flow is...
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The Design of a Multi-Party VoIP Conferencing System Over the Internet
January 14, 2008, 12:00am PST
This paper presents the design of a VoIP conferencing system that enables the voice communication of multiple users in the Internet. After studying the conversational dynamics in multi-party...
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White Papers
A Mathematical Model of the Skype VoIP Congestion Control Algorithm
December 11, 2008, 12:00am PST
The Internet is changing from being only an efficient platform for data delivery to become also a platform for audio/video applications. The stability of the traditional Internet is due to the TCP...
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White Papers
Voice-TFCC: A TCP-Friendly Congestion Control Scheme for VoIP Flows
June 23, 2008, 12:00am PDT
Typically, VoIP traffic is deployed as best-effort traffic over Internet links. This voice traffic lacks effective and scalable end-to-end congestion control. The paper proposes a new VoIP...
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White Papers
Peer-to-Peer Videoconferencing With H.264 Software Codec for Mobiles
April 17, 2008, 12:00am PDT
A rapidly growing number of carriers offer wireless video services to their customers, taking advantage of high quality video codecs implemented in dedicated hardware of selected mobile devices....
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White Papers
A Novel Optical Mesh Network-on-Chip for Gigascale Systems-on-Chip
August 19, 2009, 12:00am PDT
Nanoscale CMOS technologies are posing new Network-on-Chip (NoC) concepts to gigascale System-on-Chip (SoCs). However, electronic network on chip designs face several problems like energy...
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White Papers
Reliable Lightpath Routing in Optical Mesh Networks Under Multiple Link Failures
May 2, 2009, 12:00am PDT
In this work, authors study the problem of maximizing lightpath reliability in optical mesh networks against simultaneous failures of multiple fiber links without using protection schemes. The...
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White Papers
Exception Handling and Recovery of Semantic Web Services
March 24, 2008, 12:00am PDT
This paper presents an approach for specification of exception handling and recovery of semantic web services based on OWL-S. The authors use standard fault handlers and compensation known for...
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Whitepapers
A Universal Space-Time Architecture for Multiple-Antenna Aided Systems
May 3, 2012, 12:00am PDT
Against the recent background of rapidly-increasing demand for high-speed multimedia wireless transceivers communicating over dispersive fading channels, a bandwidth efficient and reliable...
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Whitepapers
Wireless Positioning Using TDS-OFDM Signals in Single-Frequency Networks
June 1, 2012, 12:00am PDT
Wireless positioning using Digital TeleVision (DTV) signals is a promising complementary to global positioning system due to high transmission power and wide coverage of DTV transmitters. Without...
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Whitepapers
Turbo Multi-User Detection for OFDM/SDMA Systems Relying on Differential Evolution Aided Iterative Channel Estimation
June 1, 2012, 12:00am PDT
A Differential Evolution (DE) algorithm aided iterative channel estimation and turbo Multi-User Detection (MUD) scheme is proposed for multi-user multi-input multiple output aided Orthogonal...
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Performance and Capacity of HSUPA in Lab Environment
April 15, 2008, 12:00am PDT
In this paper, the authors analyze the performance of HSUPA based on test results from a UMTS lab trial network. Different aspects from the technology have been studied in a controlled lab...
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Whitepapers
Interference Evaluation in Multi-Cell Environment with Resource Allocation Algorithms
April 15, 2008, 12:00am PDT
Adaptive multi-user resource allocation is one of the most promising technological breakthroughs that could improve performance of future broadband wireless communications. In a multi-cell...
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Whitepapers
A Downlink Transmission Method for OFDM Cellular Systems with Inter-Cell Interference Cancellation Using Simplified MLD Based on MMSE QRD-M Algorithm
April 15, 2008, 12:00am PDT
For next generation mobile radio communication, one-cell-frequency-reuse OFDM systems are attracting considerable attention. In such systems, it is necessary to improve the throughput performance...
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Whitepapers
Partially Overlapping Super Location Area (POSLA): An Efficient Scheme for Location Management in PCS Networks
April 15, 2008, 12:00am PDT
Personal Communication Service (PCS) is one of the standard widely used in location management among existing standards. A Partially Overlapping Super Location Area (POSLA) Scheme is suggested to...
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Whitepapers
Quantitative Evaluation of the Cost of Routing Protocol OLSR in a Vehicle Ad Hoc NETwork (VANET)
April 15, 2008, 12:00am PDT
In this paper, the authors study the channel occupation induced by the OLSR proactive routing protocol used in a linear Vehicular Ad-hoc NETwork (VANET). Unlike previous studies which usually use...
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Peak-to-Mean Envelope Power Ratio Statistical Analysis of Continuous OFDM Signal
April 15, 2008, 12:00am PDT
Peak-to-Mean Envelop Power Ratio (PMEPR) statistical analysis in continuous OFDM context is addressed. After having precisely defined this term which characterizes OFDM signal fluctuations, first...
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A New Spectrum Sensing Scheme Using Cyclic Prefix for OFDM-Based Cognitive Radio Systems
April 15, 2008, 12:00am PDT
In cognitive radio systems, spectrum sensing schemes for detecting primary users in a licensed spectrum are essential to utilize the spectrum effectively. As a matter of fact, sensing accuracy is...
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Whitepapers
Autonomous Coordinator Selection in Beamformed 60GHz Wireless Networks
March 11, 2008, 12:00am PDT
In 60GHz wireless networks, autonomous coordinator selection is required to find a device to coordinate the transmissions among devices. In order to minimize the power consumption for the...
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Code Allocation Policy Optimization in HSDPA Networks Using FSMC Channel Model
March 11, 2008, 12:00am PDT
In this paper, a discrete stochastic dynamic programming model for the High Speed Downlink Packet Access (HSDPA) downlink scheduler when using Finite-State Markov Channel (FSMC) model is...
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Design and Analysis of a MAC Protocol for Vehicle to Roadside Networks
March 11, 2008, 12:00am PDT
In this paper, the authors present a new protocol for vehicle to roadside networks and presents an analysis of the handoff related overhead of general MAC protocols for these scenarios. The...
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Exponential and Power Law Distribution of Contact Duration in Urban Vehicular Ad Hoc Networks
January 1, 2013, 12:00am PST
Contact duration between moving vehicles is one of the key metrics in Vehicular Ad-hoc NETworks (VANETs) that critically influences the design of routing schemes and network throughput. Due to...
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Achieving Maximum Energy-Efficiency in Multi-Relay OFDMA Cellular Networks: A Fractional Programming Approach
April 30, 2013, 12:00am PDT
In this paper, the joint power and subcarrier allocation problem is solved in the context of maximizing the Energy-Efficiency (EE) of a multi-user, multi-relay Orthogonal Frequency Division...
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Distributed Antenna Systems in Fractional-Frequency-Reuse-Aided Cellular Networks
December 7, 2012, 12:00am PST
Distributed Antenna System (DAS)-aided Unity Frequency Reuse (UFR) and Fractional Frequency Reuse (FFR) trans mission scenarios are investigated in this paper, employing the classic multi...
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A Full-Duplex Diversity-Assisted Hybrid Analogue/Digitized Radio Over Fibre for Optical/Wireless Integration
December 31, 2012, 12:00am PST
A duplex Radio Over Fiber (ROF) ring architecture is proposed taking into account the constraints imposed by the cost of fiber laying and of the optical/electronic components, as well as the...
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Whitepapers
A Latency and Modulation Aware Bandwidth Allocation Algorithm for WiMAX Base Stations
March 11, 2008, 12:00am PDT
The mobile WiMAX systems based on IEEE 802.16e-2005 provide high data rate for the mobile wireless network. However, the link quality is frequently unstable owing to the long-distance and air...
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Statistical Properties of Wideband MIMO Mobile-to-Mobile Channels
March 11, 2008, 12:00am PDT
Mobile-to-Mobile (M-to-M) communications play an important role in mobile ad-hoc wireless networks, intelligent transportation systems, and relay-based cellular networks. A Three-Dimensional (3-D)...
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Whitepapers
Virtual Circle Based Geometric Modeling of Holes for Geographic Routing
March 11, 2008, 12:00am PDT
Void areas (holes) are hardly avoided in Wireless Sensor Networks because of various actual geographical environments, e.g., puddles, buildings or obstacles, or uneven energy consumption. To...
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Novel MAP Selection Scheme Using Location History in Hierarchical MIPv6 Networks
March 11, 2008, 12:00am PDT
In this paper, a novel Mobility Anchor Point (MAP) selection scheme based on location history is proposed for hierarchical MIPv6 networks. Considering Mobile Nodes (MNs) moving fast but only...
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Data Broadcast Scheduling in Broadcast/UMTS Integrated Systems Using Mathematical Modeling and Computing Techniques
March 11, 2008, 12:00am PDT
Wireless broadcast systems provide the users with high bandwidth while 3G cellular systems provide complementary service to support personality and interactivity. In this paper, the authors...
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Performance Analysis of Amplify-and-Forward Relaying with Mismatched-Coherent and Partially-Coherent Receivers
March 11, 2008, 12:00am PDT
In this paper, the authors investigate the error rate performance of Amplify-and-Forward (AF) relaying with imperfect channel estimation. They consider a single-relay scenario with orthogonal and...
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On the Performance Bounds of OFDM-Based 802.16 Broadband Wireless Networks
March 11, 2008, 12:00am PDT
In this paper, the authors evaluate the performance bounds of 802.16 technology under different physical and MAC parameters settings. The saturation throughput that can be reached in 802.16...
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Space Time Coding with Unequal Modulations
March 11, 2008, 12:00am PDT
Use of unequal modulation schemes in a system utilizing space time block coding is investigated. Employing mixed modulations in a space-time system offers finer granularity in the system...
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An Intelligent Tunneling Framework for Always Best Connected Support in Network Mobility (NEMO)
March 11, 2008, 12:00am PDT
The Always Best Connected (ABC) vision has always been about IP-based architecture and multiple simultaneous access technologies which can provide wireless bandwidth aggregation and load-balancing...
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Fair and Efficient TCP Access in IEEE 802.11 WLANs
March 11, 2008, 12:00am PDT
The authors illustrate the transport layer unfairness problem in the IEEE 802.11 Wireless Local Area Networks (WLANs). They propose a novel and simple analytical model to calculate the per-flow...
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Multi-hop Wireless Relay Networks of Mesh Clients
March 11, 2008, 12:00am PDT
In typical deployments of infrastructure Wireless Mesh Networks, mesh clients are directly connected to a mesh router. The mesh routers form a multi-hop wireless mesh backbone to provide...
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Whitepapers
Performance Modeling of Power Saving Classes with Multiple Connections for Broadband Wireless Networks
March 11, 2008, 12:00am PDT
Different types of power-saving techniques have been proposed in various fields to alleviate the limitation on the battery lifetime for the Mobile Stations (MSs). In order to provide feasible...
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A Packet Size Control Algorithm for IEEE 802.16e
March 11, 2008, 12:00am PDT
In this paper, the authors propose a novel algorithm which enables an ARQ protocol defined for IEEE 802.16e to vary the packet size depending on wireless channel behavior. The algorithm adopts an...
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Slim ARQ for Reliable Broadcasting in Wireless LANs
March 11, 2008, 12:00am PDT
In this paper, the authors propose an efficient Automatic Repeat Request (ARQ) scheme to address the reliable broadcasting problem in Wireless LANs. Based on a novel approach of virtual bitmaps,...
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Optimal Node Placement in Hybrid Solar Powered WLAN Mesh Networks
March 11, 2008, 12:00am PDT
Hybrid WLAN mesh networks use a combination of nodes that are continuously powered and those that are powered using an energy sustainable source such as solar power. In this paper, the authors...
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Novel MIMO Packet-Based Proportional Fairness Scheduling Framework
March 11, 2008, 12:00am PDT
The key issue the authors address in this paper concerns how the available bandwidth within the downlink of a Multiple-Input Multiple-Output (MIMO) cellular network should be shared between...
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Exact Performance Analysis of Joint Adaptive Modulation and Power Loading Transmission In Multi-Channel System
March 11, 2008, 12:00am PDT
In this paper, the authors propose a hybrid Adaptive Modulation and Power Loading (AMPL) for wireless multi-channel system. While the hybrid Adaptive Modulation and Diversity Combining (AMDC)...
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Lower and Upper Bounds for Throughput Capacity of a Cognitive Ad Hoc Network Overlaid on a Cellular Network
March 11, 2008, 12:00am PDT
In this paper, the authors compute lower and upper bounds for the throughput capacity of an ad hoc network overlaid on a cellular network. The ad hoc network is comprised of a specific number of...
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Mitigation of the Propagation of Localization Error Using Multi-hop Bounding
March 11, 2008, 12:00am PDT
In ad hoc position-location networks, location information is obtained through the sequential estimation of node locations. An unlocalized node can estimate its location based on range and...
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Wireless OFDM-OQAM with a Small Number of Subcarriers
March 11, 2008, 12:00am PDT
Orthogonal Frequency Division Multiplexing based on Offset Quadrature Amplitude Modulation (OFDM-OQAM) is a multicarrier signaling technique which trades off robustness for spectral efficiency...
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RTDD: A Real-Time Communication Protocol for Directed Diffusion
March 11, 2008, 12:00am PDT
In this paper, the authors propose Real-Time Directed Diffusion (RTDD), a real-time communication protocol for directed diffusion. Using the mechanisms provided by directed diffusion, they...
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Markov Chain Model for Polling Delay and Throughput Analyses of Uplink Subframe in WiMAX Networks
March 11, 2008, 12:00am PDT
IEEE 802.16 is proposed to provide middle-range access and high data rate for real-time transmission through wireless channel. The increasing of access range, data rate, and total number of nodes...
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Optimal Efficient Discrete Resource Allocation for OFDMA Systems
March 11, 2008, 12:00am PDT
In this paper, the authors propose a flexible, efficient approach to discrete rate and power allocation for OFDMA systems. They consider the weighted-sum-rate maximization problem, and utilize the...
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