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(34714 results)-
White Papers
Autonomous Decentralized Synchronization System for Inter-Vehicle Communication in Ad-Hoc Network
September 1, 2007 12:00am PDT
This paper proposes an autonomous decentralized synchronization system for Inter-Vehicle Communication Network (IVCN). The authors have to consider the future of IVCN: "Time variant" about the...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Data Loss Prevention Best Practices: Managing Sensitive Data in the Enterprise
September 1, 2007 12:00am PDT
While a great deal of attention has been given to protecting companies' electronic assets from outside threats - from intrusion prevention systems to firewalls to vulnerability management -...
Provided by: Cisco Systems
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White Papers
A Service-Agent-Based Roaming Architecture for WLAN/Cellular Integrated Networks
September 1, 2007 12:00am PDT
In this paper, an agent-based integrated service model for Wireless Local Area Network (WLAN)/cellular networks and the relevant authentication and event tracking for billing support schemes are...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Mobility Management in Mobile Hotspots With Heterogeneous Multihop Wireless Links
September 1, 2007 12:00am PDT
In this paper, the authors study two representative mobility management schemes for mobile hotspots with heterogeneous multi-hop wireless links: the NEMO basic support protocol at the network...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Calculation of Loss Probability in a Finite Size Partitioned Buffer for Quantitative Assured Service
September 1, 2007 12:00am PDT
This paper proposes an approximate yet accurate approach to calculate the loss probabilities in a finite size partitioned buffer system for the achievement of a quantitative assured service in...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Resource Allocation in OFDMA With Time-Varying Channel and Bursty Arrivals
September 1, 2007 12:00am PDT
This paper considers the issue of delay optimal sub-carrier allocation in OFDMA wireless networks when the arrivals and channels are stochastic. The authors' objective is to minimize the long-term...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Optimization of Training and Scheduling in the Non-Coherent SIMO Multiple Access Channel
September 1, 2007 12:00am PDT
Channel State Information (CSI) is important for achieving large rates in MIMO channels. However, in timevarying MIMO channels, there is a tradeoff between the time/energy spent acquiring Channel...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
On the Capacity of MIMO Wireless Channels With Dynamic CSIT
September 1, 2007 12:00am PDT
Transmit Channel Side Information (CSIT) can significantly increase MIMO wireless capacity. Due to delay in acquiring this information, however, the time-selective fading wireless channel often...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
MIMO Wireless Linear Precoding
September 1, 2007 12:00am PDT
The benefits of using multiple antennas at both the transmitter and the receiver in a wireless system are well established. Multiple-Input Multiple-Output (MIMO) systems enable a growth in...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Signal-Processing-Aided Distributed Compression in Virtual MIMO-Based Wireless Sensor Networks
September 1, 2007 12:00am PDT
An adaptive signal-processing-aided distributed source coding scheme for virtual multiple-input-multiple-output communication-based Wireless Sensor Networks (WSNs) is proposed. A computationally...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Energy-Efficient Monitoring of Mobile Objects With Uncertainty-Aware Tolerances
September 1, 2007 12:00am PDT
In location-based services, continuous queries are often employed to monitor the locations of mobile objects that are determined by sensing devices like GPS receivers. Due to limited battery...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Hybrid Runtime Management of Space-Time Heterogeneity for Parallel Structured Adaptive Applications
September 1, 2007 12:00am PDT
Structured Adaptive Mesh Refinement (SAMR) techniques provide an effective means for dynamically concentrating computational effort and resources to appropriate regions in the application domain....
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Towards Gigabit DSL (GDSL): Design of a CC/MC-CDMA Modem
September 1, 2007 12:00am PDT
With the introduction of VDSL2 and the implementation of Fibre-To-The-Curb (FTTC), the theoretical limit of DSL technology is pushed even further than currently known ADSL technology. Current...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Flexible Scalable Solution for All-Optical Multifiber Multicasting: SLAM
September 1, 2007 12:00am PDT
The authors previously proposed a mixed-integer linear-programming formulation, solved by CPLEX, which is a state-of-the-art optimization tool, and two heuristic solutions, Layered All-optical...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Robust Coded MIMO FH-CDMA Transceiver for Mobile Ad Hoc Networks
September 1, 2007 12:00am PDT
In this paper, the authors develop a coded MIMO FHCDMA transceiver that is robust to partial-band jamming and the near-far problem for ad hoc networks with high mobility. Spatial and frequency...
Provided by: Institute of Electrical & Electronic Engineers
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White Papers
Selection of a Forwarding Area for Contention-Based Geographic Forwarding in Wireless Multi-Hop Networks
September 1, 2007 12:00am PDT
Contention-based Geographic Forwarding (CGF) is a state-free forwarding technique. In this paper, the authors develop a general analytical framework to evaluate the performance of CGF with...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Enhancing Closed-Loop Wireless Systems Through Efficient Feedback Reconstruction
September 1, 2007 12:00am PDT
The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in Multiple-Input Multiple-Output (MIMO) communication systems. The wideband code-division...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Rao-Blackwellized Variable Rate Particle Filtering for Handset Tracking in Communication and Sensor Networks
September 1, 2007 12:00am PDT
Knowledge about the position of a user's mobile handset device constitutes a valuable information for emerging location - based services and applications. While satellite - based navigation...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Residual Carrier Frequency Offset Estimation and Correction in OFDM MIMO Systems
September 1, 2007 12:00am PDT
This paper addresses the problem of estimating and correcting the residual carrier frequency offset in a Multi-Input-Multi-Output (MIMO) system employing Orthogonal Frequency Division Multiplexing...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Robust Power Allocation Designs for Multiuser and Multiantenna Downlink Communication Systems Through Convex Optimization
September 1, 2007 12:00am PDT
In this paper, the authors study the design of the transmitter in the downlink of a multiuser and multi-antenna wireless communications system, considering the realistic scenario where only an...
Provided by: Institute of Electrical & Electronic Engineers
