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University of Stellenbosch
(19 results)-
White Papers
From Sweatshops To Sweetshops - Job Redesign As An Innovation For Sustaining Call Centers
June 18, 2008, 12:00am PDT
The phenomenal growth in call centers worldwide is indicative of the economic paradigm shift from producing goods towards providing services. The mobility of call centers has led to the...
Provided by University of Stellenbosch
-
White Papers
Band-Pass Filters And Business Cycle Analysis: Highfrequency And Medium-Term Deviation Cycles In South Africa And What They Measure
November 1, 2010, 12:00am PDT
Many analysts use band-pass filters to remove so-called permanent components from output and then study the remainder, which is then termed the "business cycle". Building on the critique of these...
Provided by University of Stellenbosch
-
White Papers
Infrastructure In South Africa: Who Is To Finance And Who Is To Pay?
August 13, 2007, 12:00am PDT
Against the backdrop of shifting views on the role of government in the provision of infrastructure, this paper distinguishes between the payment for and financing of the South African...
Provided by University of Stellenbosch
-
White Papers
Visualizing and Managing Cloud Computing Networks
July 19, 2010, 12:00am PDT
This paper describes the methods used to visualize and identify possible problems within a cloud computing network. A technique, rendering the entire cloud network in Hyperbolic space, for...
Provided by University of Stellenbosch
-
White Papers
Implications Of The Financial Crisis For Models In Monetary Policy
July 19, 2010, 12:00am PDT
Monetary authorities have been implicated in the financial crisis of 2007-2008. John Muellbauer, for example, has blamed what he thought was initially inadequate policy responses by central banks...
Provided by University of Stellenbosch
-
White Papers
A Fiscal Rule To Produce Counter-Cyclical Fiscal Policy In South Africa
August 22, 2007, 12:00am PDT
This paper considers the role of fiscal policy as a component of stabilization policy in South Africa. The South African economy - like many others, most notably the United States - has...
Provided by University of Stellenbosch
-
White Papers
Predicting Low Earth Orbit Satellite Communications Quality and Visibility Over Time
July 20, 2009, 12:00am PDT
Low-earth-orbit satellite communication link margins vary greatly as the satellite moves in its orbit around the earth. A major design consideration that needs to be addressed for any satellite...
Provided by University of Stellenbosch
-
White Papers
Automated Traffic Class Prediction and Prioritization on 802.11 Using Machine Learning
July 15, 2009, 12:00am PDT
With the steady increase of Internet access rates (DSL, LTE, FTTH) and aging local access technologies (802.11) QoS problems are starting to manifest themselves on the inside of SOHo (Small...
Provided by University of Stellenbosch
-
White Papers
Modeling Collaborative Motion in Mobile Ad Hoc Networks
July 19, 2010, 12:00am PDT
A Mobile Ad hoc NETwork (MANET) is a wireless network formed by a set of mobile nodes in a self-organising way without relying on any established infrastructure. All nodes in a MANET are...
Provided by University of Stellenbosch
-
White Papers
A Scalable Network Monitoring and Bandwidth Throttling System for Cloud Computing
July 19, 2010, 12:00am PDT
With the increase in the demand for affordable, high capacity processing power, the use of Cloud Computing systems such as the Amazon Elastic Compute Cloud (EC2) has increased significantly. This...
Provided by University of Stellenbosch
-
White Papers
Network Re-Engineering Using Successive Survivable Routing
July 19, 2010, 12:00am PDT
The Spare Capacity Assignment (SCA) problem is a constrained non-linear optimization problem which describes how to route backup paths and configure the network links with the least amount of...
Provided by University of Stellenbosch
-
White Papers
Design and Optimization of a Cluster Based Ad Hoc Wireless Network Routing Protocol
July 15, 2010, 12:00am PDT
Cluster based routing protocols has been shown to reduce routing information overhead at high node densities. This paper documents the design process of a cluster based routing protocol. A...
Provided by University of Stellenbosch
-
White Papers
A Digital Modem Card for a Multi-Channel Satellite Communications Payload
July 10, 2008, 12:00am PDT
This paper describes the design of a digital modem card for use within a multi-channel communications payload for a low earth orbit microsatellite. The payload provides multiple channels enabling...
Provided by University of Stellenbosch
-
White Papers
A Fixed-Point DSP Architecture for Software-Defined Radio
July 30, 2008, 12:00am PDT
Software-Defined Radios (SDR) performs signal processing in the digital domain, replacing hardware that previously performed such processing. The need exists to rapidly create new SDR applications...
Provided by University of Stellenbosch
-
White Papers
A Model of Autonomous Motion in Ad Hoc Networks to Maximise Area Coverage
July 11, 2008, 12:00am PDT
Ad hoc networks are self-configuring networks of mobile nodes, connected by wireless links. The area coverage of the network is defined as the total area observed by the mobile nodes. The authors...
Provided by University of Stellenbosch
-
White Papers
An Improved Capacity Modeling Approach for 802.11 Protocols
July 21, 2008, 12:00am PDT
Despite the widespread use of IEEE 802.11 Wireless Local Area Network (WLAN) protocol, not much analysis has been done on modeling its performance, to determine what amount of users such a network...
Provided by University of Stellenbosch
-
White Papers
A Multichannel Satellite Scheduling Algorithm
July 15, 2008, 12:00am PDT
During the design process of the South African Sumbandilasat satellite, a requirement was identified for a store-and-forward type on-board communications payload. This will allow for connectivity...
Provided by University of Stellenbosch
-
White Papers
On Routing IP Traffic Using Single- and Multi-Objective Genetic Optimization
January 1, 2012, 12:00am PST
The authors formulate the routing of traffic in emerging IP networks as both single and multi-objective optimization problems which are solved using classical and hybrid genetic optimization. They...
Provided by University of Stellenbosch
-
White Papers
Language Identification and Multilingual Speech Recognition Using Discriminatively Trained Acoustic Models
January 1, 2008, 12:00am PST
The paper performs language identification experiments for four prominent South-African languages using a multilingual speech recognition system. Specifically, the paper shows how successfully...
Provided by University of Stellenbosch
-
White Papers
On Routing IP Traffic Using Single- and Multi-Objective Genetic Optimization
January 1, 2012, 12:00am PST
The authors formulate the routing of traffic in emerging IP networks as both single and multi-objective optimization problems which are solved using classical and hybrid genetic optimization. They...
Provided by University of Stellenbosch
-
White Papers
A Multichannel Satellite Scheduling Algorithm
July 15, 2008, 12:00am PDT
During the design process of the South African Sumbandilasat satellite, a requirement was identified for a store-and-forward type on-board communications payload. This will allow for connectivity...
Provided by University of Stellenbosch
-
White Papers
An Improved Capacity Modeling Approach for 802.11 Protocols
July 21, 2008, 12:00am PDT
Despite the widespread use of IEEE 802.11 Wireless Local Area Network (WLAN) protocol, not much analysis has been done on modeling its performance, to determine what amount of users such a network...
Provided by University of Stellenbosch
-
White Papers
A Model of Autonomous Motion in Ad Hoc Networks to Maximise Area Coverage
July 11, 2008, 12:00am PDT
Ad hoc networks are self-configuring networks of mobile nodes, connected by wireless links. The area coverage of the network is defined as the total area observed by the mobile nodes. The authors...
Provided by University of Stellenbosch
-
White Papers
A Fixed-Point DSP Architecture for Software-Defined Radio
July 30, 2008, 12:00am PDT
Software-Defined Radios (SDR) performs signal processing in the digital domain, replacing hardware that previously performed such processing. The need exists to rapidly create new SDR applications...
Provided by University of Stellenbosch
-
White Papers
A Digital Modem Card for a Multi-Channel Satellite Communications Payload
July 10, 2008, 12:00am PDT
This paper describes the design of a digital modem card for use within a multi-channel communications payload for a low earth orbit microsatellite. The payload provides multiple channels enabling...
Provided by University of Stellenbosch
-
White Papers
Design and Optimization of a Cluster Based Ad Hoc Wireless Network Routing Protocol
July 15, 2010, 12:00am PDT
Cluster based routing protocols has been shown to reduce routing information overhead at high node densities. This paper documents the design process of a cluster based routing protocol. A...
Provided by University of Stellenbosch
-
White Papers
Network Re-Engineering Using Successive Survivable Routing
July 19, 2010, 12:00am PDT
The Spare Capacity Assignment (SCA) problem is a constrained non-linear optimization problem which describes how to route backup paths and configure the network links with the least amount of...
Provided by University of Stellenbosch
-
White Papers
A Scalable Network Monitoring and Bandwidth Throttling System for Cloud Computing
July 19, 2010, 12:00am PDT
With the increase in the demand for affordable, high capacity processing power, the use of Cloud Computing systems such as the Amazon Elastic Compute Cloud (EC2) has increased significantly. This...
Provided by University of Stellenbosch
-
White Papers
Modeling Collaborative Motion in Mobile Ad Hoc Networks
July 19, 2010, 12:00am PDT
A Mobile Ad hoc NETwork (MANET) is a wireless network formed by a set of mobile nodes in a self-organising way without relying on any established infrastructure. All nodes in a MANET are...
Provided by University of Stellenbosch
-
White Papers
Automated Traffic Class Prediction and Prioritization on 802.11 Using Machine Learning
July 15, 2009, 12:00am PDT
With the steady increase of Internet access rates (DSL, LTE, FTTH) and aging local access technologies (802.11) QoS problems are starting to manifest themselves on the inside of SOHo (Small...
Provided by University of Stellenbosch
-
White Papers
Predicting Low Earth Orbit Satellite Communications Quality and Visibility Over Time
July 20, 2009, 12:00am PDT
Low-earth-orbit satellite communication link margins vary greatly as the satellite moves in its orbit around the earth. A major design consideration that needs to be addressed for any satellite...
Provided by University of Stellenbosch
-
White Papers
A Fiscal Rule To Produce Counter-Cyclical Fiscal Policy In South Africa
August 22, 2007, 12:00am PDT
This paper considers the role of fiscal policy as a component of stabilization policy in South Africa. The South African economy - like many others, most notably the United States - has...
Provided by University of Stellenbosch
-
White Papers
Implications Of The Financial Crisis For Models In Monetary Policy
July 19, 2010, 12:00am PDT
Monetary authorities have been implicated in the financial crisis of 2007-2008. John Muellbauer, for example, has blamed what he thought was initially inadequate policy responses by central banks...
Provided by University of Stellenbosch
-
White Papers
Visualizing and Managing Cloud Computing Networks
July 19, 2010, 12:00am PDT
This paper describes the methods used to visualize and identify possible problems within a cloud computing network. A technique, rendering the entire cloud network in Hyperbolic space, for...
Provided by University of Stellenbosch
-
White Papers
Infrastructure In South Africa: Who Is To Finance And Who Is To Pay?
August 13, 2007, 12:00am PDT
Against the backdrop of shifting views on the role of government in the provision of infrastructure, this paper distinguishes between the payment for and financing of the South African...
Provided by University of Stellenbosch
-
White Papers
Band-Pass Filters And Business Cycle Analysis: Highfrequency And Medium-Term Deviation Cycles In South Africa And What They Measure
November 1, 2010, 12:00am PDT
Many analysts use band-pass filters to remove so-called permanent components from output and then study the remainder, which is then termed the "business cycle". Building on the critique of these...
Provided by University of Stellenbosch
-
White Papers
From Sweatshops To Sweetshops - Job Redesign As An Innovation For Sustaining Call Centers
June 18, 2008, 12:00am PDT
The phenomenal growth in call centers worldwide is indicative of the economic paradigm shift from producing goods towards providing services. The mobility of call centers has led to the...
Provided by University of Stellenbosch
-
White Papers
Language Identification and Multilingual Speech Recognition Using Discriminatively Trained Acoustic Models
January 1, 2008, 12:00am PST
The paper performs language identification experiments for four prominent South-African languages using a multilingual speech recognition system. Specifically, the paper shows how successfully...
Provided by University of Stellenbosch
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