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Displaying 1-21 of 21 results

  • White Papers // Jan 2014

    Hybrid Algorithm for Mapping Static Task Graphs on Multiprocessor SoCs

    Mapping of applications on multiprocessor system-on-chip is a crucial step in the system design to optimize the performance, energy and memory constraints at the same time. The problem is formulated as finding solutions to an objective function of the algorithm performing the mapping and scheduling under strict constraints. The authors'...

    Provided By tampanetmedia.com

  • White Papers // May 2013

    ERP Research at ECIS and ICIS: A Fashion Wave Calming Down?

    Enterprise Resource Planning (ERP) and Enterprise Systems (ES) have been in Information Systems (IS) researchers' and practitioners' focus for more than ten years. Yet problems with ERP implementation projects get exposed to the public eye constantly. This makes one marvel why so. In this paper, the authors will take a...

    Provided By tampanetmedia.com

  • White Papers // Jan 2013

    Practical Traffic Generation Model for Wireless Networks

    In this paper, the authors address traffic engineering problems for wireless communications by proposing a practical technique to construct a DBMAP-based model equivalent to an IPP-based model. On the one hand, IPP-based (ON-OFF) models are widespread in practice to simulate the application layer traffic in wireless networks. On the other...

    Provided By tampanetmedia.com

  • White Papers // Nov 2012

    Modelling and Practical Iterative Mitigation of Phase Noise in SC-FDMA

    This paper addresses the modeling, and practical estimation and mitigation of phase noise in Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems. Special emphasis is kept on 3GPP Long Term Evolution signals. First, new way to model the phase noise effect in SC-FDMA is given and the phase noise effect is...

    Provided By tampanetmedia.com

  • White Papers // Aug 2012

    Flexible Adjacent Channel Interference and Phase Noise Suppression in Energy-Efficient OFDMA Receivers

    This paper addresses the problem of phase noise mitigation in OFDMA-based radio link in a case where also adjacent channels are down-converted and therefore affected by the phase noise. The paper proposes the use of receiver-side digital-signal-processing algorithm for mitigation of receiver phase-noise in case of adjacent channel interference. The...

    Provided By tampanetmedia.com

  • White Papers // Apr 2012

    An Efficient Multiplication-Free and Look-Up Table-Free Adaptive Binary Arithmetic Coder

    In this paper, the authors propose a novel efficient adaptive binary arithmetic coder which is multiplication-free and requires no look-up tables. To achieve this, they combine the probability estimation based on a virtual sliding window with the approximation of multiplication and the use of simple operations to calculate the next...

    Provided By tampanetmedia.com

  • White Papers // Mar 2012

    Optimized FFT and Filter Bank Based Spectrum Sensing for Bluetooth Signal

    Wireless Local Area Networks (WLAN) and Wireless Personal Area Networks (WPAN) such as the Bluetooth are designed to operate in 2.4 GHz ISM band. Since both IEEE 802.15 based Bluetooth and IEEE 802.11 WLAN devices, among various others, use the same frequency band, interference may lead to significant performance degradation....

    Provided By tampanetmedia.com

  • White Papers // Feb 2012

    Analysis and Mitigation of Phase Noise and Sampling Jitter in OFDM Radio Receivers

    This paper addresses the analysis and Digital Signal Processing (DSP)-based mitigation of phase noise and sampling clock jitter in Orthogonal Frequency Division Multiplexing (OFDM) radios. In the phase noise studies, the basic direct-conversion receiver architecture case is assumed with noisy down-converting oscillator. In the sampling jitter case, on the other...

    Provided By tampanetmedia.com

  • White Papers // Jan 2012

    Sampling Jitter in Charge Sampling Radio

    This paper addresses some implementation challenges in the potentially very energy-efficient charge sampling radios. Alternative ways to implement charge sampler in charge sampling radio are considered, and the impacts and spectral shape characteristics of the sampling jitter induced signal distortion are analytically studied in these cases. The analysis shows that...

    Provided By tampanetmedia.com

  • White Papers // Nov 2011

    Energy Efficient Operation of 3GPP LTE-Advanced and IEEE 802.16m Downlink Channel

    Currently, prominent 4G wireless networking technologies receive increasing attention from the research community. Represented by 3GPP LTE and IEEE 802.16 cellular standards, they support both stationary and mobile users. Due to the limited power budget of the latter, the energy efficient behavior is becoming of primary importance. In order to...

    Provided By tampanetmedia.com

  • White Papers // Dec 2010

    On OFDM Link Performance Under Receiver Phase Noise With Arbitrary Spectral Shape

    This paper addresses the signal distortion caused by receiver Phase Noise (PN) on OFDM waveforms in direct conversion radio receivers. A closed-form solution for the observed Signal-to-Interference-plus-Noise Ratio (SINR) is derived, describing the level of Inter-Carrier Interference (ICI) stemming from PN. Compared to existing literature, the analysis is valid for...

    Provided By tampanetmedia.com

  • White Papers // Sep 2010

    Reappearing Primary User Detection in FBMC/OQAM Cognitive Radios

    This paper investigates the problem of detecting the reappearance of a primary user signal during ongoing secondary data transmission. The high frequency containment of Filter Bank Multi-Carrier (FBMC) waveforms is exploited to construct, in spectrally efficient manner, continuous silent subbands within the transmission band for spectrum monitoring. Energy detection is...

    Provided By tampanetmedia.com

  • White Papers // Jun 2010

    Comparative Analysis of Sleep Mode Control Algorithms for Contemporary Metropolitan Area Wireless Networks

    Recently, broadband wireless networks, such as IEEE 802.16 and LTE, receive more and more attention from the researchers. Increasing the energy efficiency of the end clients in these systems is an important research task and the evaluation of the energy efficient mechanisms remains an open problem. In this paper, the...

    Provided By tampanetmedia.com

  • White Papers // Mar 2010

    Joint Validation of Application Models and Multi-Abstraction Network-on-Chip Platforms

    Application models are often disregarded during the design of Multi-Processor Systems-on-Chip (MPSoC). This is due to the difficulties of capturing the application constraints and applying them to the design space exploration of the platform. In this paper, the authors propose an application modeling formalism that supports joint validation of application...

    Provided By tampanetmedia.com

  • White Papers // Dec 2009

    Sampling Jitter Cancellation in Direct-Sampling Radio

    This paper addresses the sampling jitter estimation and cancellation task in direct RF sub-sampling type radios. The proposed jitter estimation method is based on carefully injecting or superimposing an additional known reference signal to the received signal at the sampler input. Proper digital signal processing methods are then devised and...

    Provided By tampanetmedia.com

  • White Papers // Sep 2009

    Sampling Jitter Estimation and Mitigation in Direct RF Sub-Sampling Receiver Architecture

    The sampling jitter is particularly problematic in systems where high-frequency signals are sampled. This paper addresses the sampling jitter estimation and cancellation task in the direct RF sub-sampling type radio receivers. The proposed jitter estimation method is based on carefully injecting or superimposing an additional reference signal to the received...

    Provided By tampanetmedia.com

  • White Papers // May 2009

    Characterising Embedded Applications Using a UML Profile

    Application designers need to start the application design process before the final platform is available. Therefore, the designers need to have an abstract model of the platform at the early stages of the design process in order to validate the application functionality and evaluate its performance. Furthermore, platform designers need...

    Provided By tampanetmedia.com

  • White Papers // Apr 2009

    Jitter Mitigation in High-Frequency Bandpass-Sampling OFDM Radios

    This paper presents a new way to address and mitigate sampling jitter in high-frequency band-pass-sampling OFDM radio receivers. Baseband model for mapping the sampling jitter to certain type of phase noise is first presented, and stemming from this model, state-of-the-art phase noise mitigation techniques are then proposed to remove the...

    Provided By tampanetmedia.com

  • White Papers // Sep 2007

    Assessing Business Model Concepts with Taxonomical Research Criteria

    The business model construct has received increasing attention from academics. The concept has been approached from a number of perspectives and in conclusion, past studies have arrived in conceptualization of various different alternative models. This search for unified definitional grounds has inevitably resulted in confusion, which should not be viewed...

    Provided By tampanetmedia.com

  • White Papers // Jul 2006

    Risks and Risk Management in ERP Project - Cases in SME Context

    ERP systems have become everyday life also in small and medium sized enterprises. SMEs are willing to implement ERP systems to develop their operations in order to get benefits in business. In some cases the pressure towards ERP solutions comes from larger co-operating partners. Enterprise Resource Planning (ERP) projects are...

    Provided By tampanetmedia.com

  • White Papers // Feb 2006

    Requirements for Network-on-Chip Benchmarking

    In this paper, the authors present the motivation, basic concepts, and requirements for benchmarking a Network-on-Chip (NoC). Currently there is practically no benchmark sets for NoC or the presented tools do not meet the requirements. The presented benchmarking method utilizes traffic generator with a dataflow models of the applications. Combined...

    Provided By tampanetmedia.com

  • White Papers // Dec 2010

    On OFDM Link Performance Under Receiver Phase Noise With Arbitrary Spectral Shape

    This paper addresses the signal distortion caused by receiver Phase Noise (PN) on OFDM waveforms in direct conversion radio receivers. A closed-form solution for the observed Signal-to-Interference-plus-Noise Ratio (SINR) is derived, describing the level of Inter-Carrier Interference (ICI) stemming from PN. Compared to existing literature, the analysis is valid for...

    Provided By tampanetmedia.com

  • White Papers // Jan 2012

    Sampling Jitter in Charge Sampling Radio

    This paper addresses some implementation challenges in the potentially very energy-efficient charge sampling radios. Alternative ways to implement charge sampler in charge sampling radio are considered, and the impacts and spectral shape characteristics of the sampling jitter induced signal distortion are analytically studied in these cases. The analysis shows that...

    Provided By tampanetmedia.com

  • White Papers // Nov 2012

    Modelling and Practical Iterative Mitigation of Phase Noise in SC-FDMA

    This paper addresses the modeling, and practical estimation and mitigation of phase noise in Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems. Special emphasis is kept on 3GPP Long Term Evolution signals. First, new way to model the phase noise effect in SC-FDMA is given and the phase noise effect is...

    Provided By tampanetmedia.com

  • White Papers // Aug 2012

    Flexible Adjacent Channel Interference and Phase Noise Suppression in Energy-Efficient OFDMA Receivers

    This paper addresses the problem of phase noise mitigation in OFDMA-based radio link in a case where also adjacent channels are down-converted and therefore affected by the phase noise. The paper proposes the use of receiver-side digital-signal-processing algorithm for mitigation of receiver phase-noise in case of adjacent channel interference. The...

    Provided By tampanetmedia.com

  • White Papers // Mar 2012

    Optimized FFT and Filter Bank Based Spectrum Sensing for Bluetooth Signal

    Wireless Local Area Networks (WLAN) and Wireless Personal Area Networks (WPAN) such as the Bluetooth are designed to operate in 2.4 GHz ISM band. Since both IEEE 802.15 based Bluetooth and IEEE 802.11 WLAN devices, among various others, use the same frequency band, interference may lead to significant performance degradation....

    Provided By tampanetmedia.com

  • White Papers // Jul 2006

    Risks and Risk Management in ERP Project - Cases in SME Context

    ERP systems have become everyday life also in small and medium sized enterprises. SMEs are willing to implement ERP systems to develop their operations in order to get benefits in business. In some cases the pressure towards ERP solutions comes from larger co-operating partners. Enterprise Resource Planning (ERP) projects are...

    Provided By tampanetmedia.com

  • White Papers // Sep 2007

    Assessing Business Model Concepts with Taxonomical Research Criteria

    The business model construct has received increasing attention from academics. The concept has been approached from a number of perspectives and in conclusion, past studies have arrived in conceptualization of various different alternative models. This search for unified definitional grounds has inevitably resulted in confusion, which should not be viewed...

    Provided By tampanetmedia.com

  • White Papers // Feb 2006

    Requirements for Network-on-Chip Benchmarking

    In this paper, the authors present the motivation, basic concepts, and requirements for benchmarking a Network-on-Chip (NoC). Currently there is practically no benchmark sets for NoC or the presented tools do not meet the requirements. The presented benchmarking method utilizes traffic generator with a dataflow models of the applications. Combined...

    Provided By tampanetmedia.com

  • White Papers // Jan 2014

    Hybrid Algorithm for Mapping Static Task Graphs on Multiprocessor SoCs

    Mapping of applications on multiprocessor system-on-chip is a crucial step in the system design to optimize the performance, energy and memory constraints at the same time. The problem is formulated as finding solutions to an objective function of the algorithm performing the mapping and scheduling under strict constraints. The authors'...

    Provided By tampanetmedia.com

  • White Papers // Mar 2010

    Joint Validation of Application Models and Multi-Abstraction Network-on-Chip Platforms

    Application models are often disregarded during the design of Multi-Processor Systems-on-Chip (MPSoC). This is due to the difficulties of capturing the application constraints and applying them to the design space exploration of the platform. In this paper, the authors propose an application modeling formalism that supports joint validation of application...

    Provided By tampanetmedia.com

  • White Papers // May 2009

    Characterising Embedded Applications Using a UML Profile

    Application designers need to start the application design process before the final platform is available. Therefore, the designers need to have an abstract model of the platform at the early stages of the design process in order to validate the application functionality and evaluate its performance. Furthermore, platform designers need...

    Provided By tampanetmedia.com

  • White Papers // Apr 2012

    An Efficient Multiplication-Free and Look-Up Table-Free Adaptive Binary Arithmetic Coder

    In this paper, the authors propose a novel efficient adaptive binary arithmetic coder which is multiplication-free and requires no look-up tables. To achieve this, they combine the probability estimation based on a virtual sliding window with the approximation of multiplication and the use of simple operations to calculate the next...

    Provided By tampanetmedia.com

  • White Papers // Nov 2011

    Energy Efficient Operation of 3GPP LTE-Advanced and IEEE 802.16m Downlink Channel

    Currently, prominent 4G wireless networking technologies receive increasing attention from the research community. Represented by 3GPP LTE and IEEE 802.16 cellular standards, they support both stationary and mobile users. Due to the limited power budget of the latter, the energy efficient behavior is becoming of primary importance. In order to...

    Provided By tampanetmedia.com

  • White Papers // Jan 2013

    Practical Traffic Generation Model for Wireless Networks

    In this paper, the authors address traffic engineering problems for wireless communications by proposing a practical technique to construct a DBMAP-based model equivalent to an IPP-based model. On the one hand, IPP-based (ON-OFF) models are widespread in practice to simulate the application layer traffic in wireless networks. On the other...

    Provided By tampanetmedia.com

  • White Papers // Jun 2010

    Comparative Analysis of Sleep Mode Control Algorithms for Contemporary Metropolitan Area Wireless Networks

    Recently, broadband wireless networks, such as IEEE 802.16 and LTE, receive more and more attention from the researchers. Increasing the energy efficiency of the end clients in these systems is an important research task and the evaluation of the energy efficient mechanisms remains an open problem. In this paper, the...

    Provided By tampanetmedia.com

  • White Papers // May 2013

    ERP Research at ECIS and ICIS: A Fashion Wave Calming Down?

    Enterprise Resource Planning (ERP) and Enterprise Systems (ES) have been in Information Systems (IS) researchers' and practitioners' focus for more than ten years. Yet problems with ERP implementation projects get exposed to the public eye constantly. This makes one marvel why so. In this paper, the authors will take a...

    Provided By tampanetmedia.com

  • White Papers // Sep 2010

    Reappearing Primary User Detection in FBMC/OQAM Cognitive Radios

    This paper investigates the problem of detecting the reappearance of a primary user signal during ongoing secondary data transmission. The high frequency containment of Filter Bank Multi-Carrier (FBMC) waveforms is exploited to construct, in spectrally efficient manner, continuous silent subbands within the transmission band for spectrum monitoring. Energy detection is...

    Provided By tampanetmedia.com

  • White Papers // Apr 2009

    Jitter Mitigation in High-Frequency Bandpass-Sampling OFDM Radios

    This paper presents a new way to address and mitigate sampling jitter in high-frequency band-pass-sampling OFDM radio receivers. Baseband model for mapping the sampling jitter to certain type of phase noise is first presented, and stemming from this model, state-of-the-art phase noise mitigation techniques are then proposed to remove the...

    Provided By tampanetmedia.com

  • White Papers // Sep 2009

    Sampling Jitter Estimation and Mitigation in Direct RF Sub-Sampling Receiver Architecture

    The sampling jitter is particularly problematic in systems where high-frequency signals are sampled. This paper addresses the sampling jitter estimation and cancellation task in the direct RF sub-sampling type radio receivers. The proposed jitter estimation method is based on carefully injecting or superimposing an additional reference signal to the received...

    Provided By tampanetmedia.com

  • White Papers // Dec 2009

    Sampling Jitter Cancellation in Direct-Sampling Radio

    This paper addresses the sampling jitter estimation and cancellation task in direct RF sub-sampling type radios. The proposed jitter estimation method is based on carefully injecting or superimposing an additional known reference signal to the received signal at the sampler input. Proper digital signal processing methods are then devised and...

    Provided By tampanetmedia.com

  • White Papers // Feb 2012

    Analysis and Mitigation of Phase Noise and Sampling Jitter in OFDM Radio Receivers

    This paper addresses the analysis and Digital Signal Processing (DSP)-based mitigation of phase noise and sampling clock jitter in Orthogonal Frequency Division Multiplexing (OFDM) radios. In the phase noise studies, the basic direct-conversion receiver architecture case is assumed with noisy down-converting oscillator. In the sampling jitter case, on the other...

    Provided By tampanetmedia.com