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Measured Data Rate From Adaptive Modulation In Wideband OFDM Systems
White Papers The measured adaptive average data rate is 2.88 times the average data rate without adaptive modulation. Adaptive modulation is implemented on a wideband OFDM transceiver prototype to quantify its performance in indoor wireless environment.
[April 11, 2007, 0:00]
Performance Of Space-Frequency Techniques Over Measured Channels In MIMO-OFDM Systems
White Papers The primary focus of this paper is to assess the robustness and performance loss of the different spacetime techniques when operating in real (measured) scenarios. This paper examines the performance of some recently proposed Space-time coding and...
[April 11, 2007, 0:00]
Physical Layer Performance Of HIPERLAN/2 In Measured Indoor Channels
White Papers The evaluation has been addressed in a typical indoor environment using measured indoor channels carried out by a joint UFC-ERICSSON research team at ERICSSON research building in Kista, Sweden. In this paper, the performance of physical layer (PHY...
[July 26, 2005, 0:00]
Performance Of Antenna Selection For MIMO-OFDM Systems Based On Measured Indoor Correlated Frequency Selective Channels
White Papers Real channels are measured, and used to evaluate performance. This paper presents and compares antenna selection strategies for frequency selective MIMO-OFDM channels. Results for simulated TGn channel models are also presented.
[April 11, 2007, 0:00]
Quality Of Experience (QoE) Of Mobile Services: Can It Be Measured And Improved?
White Papers The ultimate measure of a network and the services it offers is how subscribers perceive the performance. Quality of Experience (QoE) is the term used to describe this perception and how usable the subscribers think the services are.
[November 7, 2004, 23:00]
A Measured Advantage: Creating A Smarter Company Through Employee Skill Certifications
White Papers One of the biggest threats of a downturn in the economy is that companies will revert back to the machine-age mindset that, after 200 years of dominance, was finally starting to disappear. How do companies best "seize the unknown"?
[December 23, 2003, 23:00]
Take A Measured Approach To Homeland Security
White Papers Whether asked to do much or little, enterprises will play a crucial role in homeland security because today's computing and business environment offers a vast number of potential vulnerabilities. Enterprises have to protect not only themselves but...
[January 16, 2005, 23:00]
Ophir Optronics Takes A Measured Approach To Information Security
White Papers Ophir Optronics is an international leader in precision IR optic, laser measurement equipment and 3-D non contact measurement scanning. The company wanted to prevent monetary losses caused by interruptions to manufacturing and two, of equal...
[June 20, 2007, 0:00]
Analysis Of Measured Single-Hop Delay From An Operational Backbone Network
White Papers Delay is a key metric in network performance and quality-of-service perceived by end users. In today's best-effort Internet, packets experience delay due to transmission and propagation through the medium, as well as queuing due to cross traffic at...
[January 9, 2005, 23:00]
Domain Name Chaos Needs Measured Response
Leader Imagine a Wild West town where the street signs can be hired by the year. For that year, the hirer gets to say where they point — but if they don't renew quickly enough, someone else can nip in and swing them around.
[March 13, 2007, 15:10]
Measured TCP Performance In CDMA 1x EV-DO Network
White Papers This paper investigates the long-lived TCP bulk throughput over the CDMA 1x EV-DO service that provides high-speed \always on" Internet connectivity in a wide-area mobile environment. Although the peak rates of downlink/uplink are specified as 2.4...
[January 8, 2008, 23:00]
Automotive Services Company Chooses State-of-the-Art Mapping Technology And Saved £5,000 In A Week It Measured Cost Savings
White Papers Automotive service company Inchcape Automotive wanted to track where its customer assets were at any point in time. It also wanted to ensure that its drivers always took the fastest route to collect or deliver a vehicle.
[November 14, 2006, 23:00]
MetaRam: Putting Terabytes Of Memory Into Servers
News Disk drives have only recently begun to be measured in terabytes. Chips are measured in gigabits (Gb), while DIMMS which hold chips get measured in gigabytes (GB). The San Jose, California-based company, which is just coming out of stealth mode and...
[February 26, 2008, 11:26]
Bulldog Users Bite Back Over Poor Service
Talkback Some kind of happiness is measured out in miles Some kind of innocence is measured out in years Some kind of solitude is measured out in you Sheepdog Standing in the rain, Bullfrog Doing it again What makes you think you're something special when...
[October 1, 2006, 19:37]
Measuring Monitor Screens
White Papers Monitor screens are measured in various ways. LCD and CRT monitors are measured differently, including horizontally and vertically vs.diagonal or metric vs. Some measurements only refer to the opening of the front bezel, while others measure the...
[January 3, 2007, 23:00]
3G Operators Bullish On Coverage Plans
Talkback I can't help wondering how "coverage" is measured. What is needed is some form of standard to determine how "coverage" is measured. I have a 3 phone, which has been nothing but trouble as far as coverage is concerned for ordinary calls, yet alone 3g.
[December 13, 2004, 10:35]
Buffer Requirements Of A Gigabit Ethernet Switch
White Papers The performance of a switch is measured on how well it can move packets from input to output ports. Due to the inherent burstiness of "real" traffic, a switch's performance is also measured on its ability to store packets when the switch fabric and...
[March 23, 2004, 23:00]
PMB-2.2.1 Benchmarking On POWER4+ Platforms P655+ And P690+
White Papers Point-to-point performance was measured between two processes within the same node (memory performance), or between two nodes (network performance). The performance was measured in MBytes/s per process (send+recv) in units of microseconds.
[September 21, 2004, 0:00]
Time Metrics Using The Shlaer-Mellor Method Or How Long Is This Going To Take?
White Papers It will cover what should be measured, how to conduct these measurements, and how the Shlaer-Mellor They are not intended to provide a set of numbers carved in stone that each group should be measured against.
[October 28, 2003, 23:00]
Application Scale-Out With The Dell PowerEdge 6650: Web Serving
White Papers The performance of a single Dell PowerEdge 6650 was measured and then compared to two identically configured PowerEdge 6650 servers clustered together. The performance was measured using the industry-standard SPECweb99_SSL Web server benchmark...
[May 11, 2005, 0:00]
