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Performance Analysis of Transparent Relays in 802.16j MMR Networks
White Paper A simulation study of the performance of transparent mode relay-based 802.16j systems is described. The study focuses on the gain in throughput that is possible in omnidirectional relay systems and increases in signalling requirements... [23 Apr 2009]
Analysis of Transparent Mode IEEE 802.16j System Performance With Varying Numbers of Relays and Associated Transmit Power
White Paper In this paper, the system capacity of IEEE 802.16j systems operating in transparent mode is investigated under varying numbers of relays and associated transmit power. The study is based on an extended variant of an analytical model... [23 Apr 2009]
Planning Base Station and Relay Station Locations in IEEE 802.16j Multi-Hop Relay Networks
White Paper In this paper, a problem formulation for determining optimal node location for Base Stations (BSs) and Relay Stations (RSs) in relay-based 802.16 networks is developed. The formulation results in an Integer Programming problem. [23 Apr 2009]
On the RFID Wake-Up Impulse for Multi-Hop Sensor Networks
White Paper Communication protocols for wireless sensor networks reduce the energy consumption by duty cycling the node activity and adopting a periodic sleeping scheduling. This approach often results in idle listening and therefore energy... [13 Apr 2009]
Multi-Hop RFID Wake-Up Radio: Design, Evaluation and Energy Tradeoffs
White Paper Energy efficiency is a central challenge in battery-operated sensor networks. Current energy-efficient mechanisms employ either duty cycling, which reduces idle listening but does not eliminate it, or low power wake-up radio, which adds... [13 Apr 2009]
The Application of Genetic Programming to General Purpose GPU Computation
White Paper Genetic programming is a natural computing approach developed by John Koza. It differs from many earlier approaches in that it has no phenotype/genotype distinction. In the traditional GA for example individuals are represented at the... [09 Jan 2009]
Admire Framework: Distributed Data Mining on Data Grid Platforms
White Paper This paper presents the ADMIRE architecture; a new framework for developing novel and innovative data mining techniques to deal with very large and distributed heterogeneous datasets in both commercial and academic applications. [01 Oct 2008]
New Fiber Delay Line Usage Strategy in Optical Burst Switching Node
White Paper Optical Burst Switching (OBS) is a new paradigm for future all-optical networks. In an OBS node, a Fiber Delay Line may be used to delay a burst, effectively increasing its offset time. Traditionally, FDLs were used in contention... [10 Sep 2008]
Cost-Based Burst Dropping Strategy in Optical Burst Switching Networks
White Paper Optical Burst Switching (OBS) is a new paradigm for future all-optical networks. Intentional burst dropping is one of techniques used to achieve desired quality of service. This paper notes that some bursts are more likely to cause... [10 Sep 2008]
University Limits Spam, Reduces IT Costs With E-Mail Filtering Service
White Paper Ireland's oldest and most famous university, Trinity College Dublin, was fighting a growing spam problem. Each day, university staff and students received dozens of... [28 Sep 2007]
In brief: Google university boost, Xerox print advance and graduate jobs
News Trinity College Dublin has switched to using Google's email service, with the students able to carry on using the same email addresses after graduating. Google is also offering students online tools to... [12 Jun 2007]
University College Dublin masters €4.5m SAN
News University College Dublin (UCD) has awarded Redstone a five-year contract worth up to €4.5m to provide storage area network technology. The initial implementation will cost €750,000 and... [29 May 2007]
Performance of VoIP Over IEEE 802.11g DSSS-OFDM Mode With IEEE 802.11e QoS Support
White Paper This paper examines, via simulation, the performance of an 802.11e MAC over an 802.11g PHY operating in DSSS-OFDM mode. The DSSS-OFDM scheme provides data rates of up to 54Mb/s as well as interoperability with 802.11b nodes. [11 Apr 2007]
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