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Ef?cient Polling Schemes for Bluetooth Picocells Revisited
White Papers This paper considers the problem of designing efficient and fair, yet simple to implement, polling schemes that would achieve best performance (i.e.the lowest end-to-end packet delay) under TCP traffic.
[November 22, 2005, 0:00]
Range-Free Localization Schemes for Large Scale Sensor Networks
White Papers For such systems, the cost and limitations of the hardware on sensing nodes prevent the use of range-based localization schemes that depend on absolute point-to-point distance estimates. Wireless Sensor Networks have been proposed for a multitude...
[August 25, 2007, 1:00]
A Comparison of Blind Channel Estimation Schemes for OFDM in Fading Channels
White Papers This paper brings together three recently proposed blind detection schemes which are specific to Orthogonal Frequency Division Multiplexing (OFDM) systems. The aim is to study the performance of these schemes in fading channels and thus give a...
[April 14, 2007, 1:01]
PC loan schemes take off
News The number of companies offering Home Computing Initiatives (HCI) schemes to employees has more than tripled in the past year. More than 1,250 organisations have implemented schemes, up from 380 at the same time last year.
[January 20, 2006, 16:15]
Transaction Management for Sender/Receiver-Payment Schemes in Charging and Accounting Systems for Interconnected Networks
White Papers This paper presents an Internet transaction management system for sender/receiver payment schemes. The new system provides more flexibility than existing charging schemes. This system allows an arbitrary split of transaction charges between two...
[April 20, 2005, 3:00]
Color Schemes
Downloads Color Schemes lets you put together up to 28 color schemes, each with up to three colors. There are two modes. In "Manual" mode you select all three colors; in "Automatic" mode, you select one color and two colors are generated for you using 120...
[November 23, 2007, 6:00]
A Survey of Sensor Selection Schemes in Wireless Sensor Networks
White Papers To resolve this conflict of interest, sensor selection schemes are used. The survey uses different schemes that are used to select sensors. Based on the purpose of selection, The paper classifies the schemes into coverage schemes, target tracking...
[August 10, 2007, 10:55]
FileHold Numbering and Versioning Schemes
White Papers FileHold has a very flexible and user configurable design to accommodate different industries that have different requirements for numbering schemes. FileHold metadata fields are flexible, controllable and searchable to allow users to create...
[May 14, 2009, 1:17]
Defining Colors Using Hex Values: With the Gray-Scale and RGB Color Naming Schemes
White Papers In any of these releases of the SAS system, one can also define their own colors in SAS/Graph using one of the color-naming schemes. The color-naming schemes are documented in the "SAS/Graph Software Reference" section of the OnlineDoc, under "SAS...
[May 31, 2008, 1:01]
Buffer Management Schemes for Enhanced TCP Performance Over Satellite Links
White Papers The queue management schemes, Smallest Window First (SWF) and Smallest Sequence Number First (SSF) give priority to sessions that have just opened or traveled across lossy and high delay channels. Queue management policies are designed to enhance...
[November 7, 2007, 0:00]
Review of Content-Aware Resource Allocation Schemes for Video Streaming Over Wireless Networks
White Papers This paper reviews some of the recent advances in cross-layer design schemes, which aim at providing significant gains in performance for video streaming systems through content-aware resource allocation.
[October 22, 2008, 1:01]
TCP-Friendly Congestion Control Schemes in the Internet
White Papers Advantages and disadvantages of every kind of these TCP-friendly schemes are listed after their principles. This paper investigates several TCP-friendly congestion control mechanisms and sorts them according to their implementation methods.
[January 15, 2008, 0:55]
Comparison and Cost Analysis of Smart and Opportunistic MIMO OFDM Schemes
White Papers The schemes are evaluated by means of simulations in a low load scenario and also compared to a simple HSDPA-like scheme. Furthermore, the performance of the schemes is inserted into a cost model that assumes that the receivers are relays that use...
[May 12, 2006, 1:00]
Intelligent RAID 6 Uses Dual Independent Parity Coding Schemes for Extra Data Protection
White Papers To produce the dual independent parity schemes in RAID 6, XOR and encoding needs to be done in hardware. RAID 6 is an emerging technology for shared storage systems and the large, high-capacity SATA disk arrays used in servers today.
[January 24, 2009, 0:21]
Comparison of Several FEC Schemes for Wireless OFDM Transmission on Frequency Selective Channels
White Papers This paper compares performances of several coding schemes including Convolutional Codes (CC), Binary Turbo Codes (TC) and Turbo Trellis Coded Modulation (TTCM) for an OFDM modulated transmission over a frequency selective fading channel.
[April 11, 2007, 1:01]
Per-Antenna-Coded Schemes for MIMO OFDM
White Papers Two Per-Antenna-Coding (PAC) receiver schemes for Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) are described and compared in this paper. For the receiver, two schemes are proposed to detect and decode the...
[November 2, 2004, 2:00]
Two men brought in by police in eBay fraud schemes
News Federal authorities have arrested one Southern California man and indicted another in connection with two separate fraud schemes on eBay. George Arthur Cruz of Artesia, California, was arrested Tuesday morning and charged with 13 counts of mail...
[December 27, 2000, 11:34]
Synchronization Schemes for Packet OFDM System
White Papers A complete OFDM synchronization chain is proposed based on practical synchronization schemes. The synchronization is accomplished in three steps: frame detection (or timing), frequency offset estimation, and phase tracking.
[October 21, 2004, 3:00]
Adaptive Air Interface Schemes for MAGNET Based on OFDM-TDMA Transmission
White Papers Different adaptive schemes for exploiting the CSI are presented where the objective is to minimize the bit-error rate (BER) at the decoder output and the receiver employs hard-decision decoding due to complexity reasons.
[March 30, 2005, 3:00]
Simulation-Based Performance Comparison of TCP-Variants Over Mobile IPv6 Based Mobility Management Schemes
White Papers Owing to explosive growth of wireless users and growing demand of wireless services the internet body IETF has developed mobility management schemes to enhance IPv6 in mobility scenarios for wireless subscribers.
[October 31, 2007, 0:00]
