Hokkaido University

Displaying 1-8 of 8 results

  • White Papers // Oct 2012

    Efficient Algorithm with Lognormal Distributions for Overloaded MIMO Wireless System

    Due to outstanding search strength and well organized steps, Genetic Algorithm (GA) has gained high interest in the field of overloaded Multiple-Input/Multiple-Output (MIMO) wireless communications system. For overloaded MIMO system employing spatial multiplexing transmission the authors evaluate the performance and complexity of Genetic Algorithm (GA)-based detection, against the Maximum-Likelihood (ML)...

    Provided By Hokkaido University

  • White Papers // May 2012

    Hardware Development of Baseband Transceiver and FPGA-Based Testbed in 8x8 and 2x2 MIMO-OFDM Systems

    Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is powerful in enhancing communication capacity or reliance. The IEEE802.11n standard defines use of four spatial streams in Spatial Division Multiplexing (SDM). The task group of IEEE802.11ac will extend it to eight spatial streams. The authors present an 88 MIMO-OFDM baseband transceiver compatible...

    Provided By Hokkaido University

  • White Papers // Mar 2011

    Response Of Double-Auction Markets To Instantaneous Selling-Buying Signals With Stochastic Bid-Ask Spread

    Statistical properties of order-driven double-auction markets with Bid-Ask spread are investigated through the dynamical quantities such as response function. The authors first attempt to utilize the so-called Madhavan-Richardson-Roomans model (MRR for short) to simulate the stochastic process of the price-change in empirical data sets (say, EUR/JPY or USD/JPY exchange rates)...

    Provided By Hokkaido University

  • White Papers // Jan 2011

    Generating Speq Rules Based on Automatic Proof of Logical Equivalence

    In the Equivalent Transformation (ET) computation model, a program is constructed by the successive accumulation of ET rules. A method by meta-computation by which a correct ET rule is generated has been proposed. Although the method covers a broad range in the generation of ET rules, all important ET rules...

    Provided By Hokkaido University

  • White Papers // Dec 2010

    Extending E-Learning Systems Based on Clause-Rule Model

    E-Learning systems are used by many learners and teachers. The developer is developing the e-Learning system. However, the developer cannot do system construction to satisfy all of users' demands. The authors discuss a method of constructing e-Learning systems where learners and teachers can design, try to use, and share extending...

    Provided By Hokkaido University

  • White Papers // Feb 2010

    Monetary Policy Rules And The Effects Of Fiscal Policy

    The authors explore the implications of adopting a Taylor-type interest-rate rule in a simple monetary growth model in which budget deficits are financed partly by unbaked government debt. To ensure uniqueness of the steady-state equilibrium, monetary policy cannot be either too "Active" or too "Passive". The effects of fiscal policy...

    Provided By Hokkaido University

  • White Papers // Oct 2009

    Tri-Diagonalizing Approach on Frequency Domain Equalization in a Doubly-Selective Channel

    Frequency-Domain Equalization (FDE) has been studied for suppressing Inter-Symbol Interference (ISI) due to frequency selective fading in single carrier systems. When a high-mobility terminal is assumed in the system, channel transition within an FFT block cannot be ignored. Then, the ISI reduction performance of FDE degrades since cyclicity of the...

    Provided By Hokkaido University

  • White Papers // Sep 2009

    On the Relationship Between Trading Network and WWW Network: A Preferential Attachment Perspective

    This paper describes the relationship between trading network and WWW network from preferential attachment mechanism perspective. This mechanism is known to be the underlying principle in the network evolution and has been incorporated to formulate two famous web pages ranking algorithms, PageRank and HITS. The authors point out the differences...

    Provided By Hokkaido University

  • White Papers // Mar 2011

    Response Of Double-Auction Markets To Instantaneous Selling-Buying Signals With Stochastic Bid-Ask Spread

    Statistical properties of order-driven double-auction markets with Bid-Ask spread are investigated through the dynamical quantities such as response function. The authors first attempt to utilize the so-called Madhavan-Richardson-Roomans model (MRR for short) to simulate the stochastic process of the price-change in empirical data sets (say, EUR/JPY or USD/JPY exchange rates)...

    Provided By Hokkaido University

  • White Papers // Jan 2011

    Generating Speq Rules Based on Automatic Proof of Logical Equivalence

    In the Equivalent Transformation (ET) computation model, a program is constructed by the successive accumulation of ET rules. A method by meta-computation by which a correct ET rule is generated has been proposed. Although the method covers a broad range in the generation of ET rules, all important ET rules...

    Provided By Hokkaido University

  • White Papers // May 2012

    Hardware Development of Baseband Transceiver and FPGA-Based Testbed in 8x8 and 2x2 MIMO-OFDM Systems

    Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is powerful in enhancing communication capacity or reliance. The IEEE802.11n standard defines use of four spatial streams in Spatial Division Multiplexing (SDM). The task group of IEEE802.11ac will extend it to eight spatial streams. The authors present an 88 MIMO-OFDM baseband transceiver compatible...

    Provided By Hokkaido University

  • White Papers // Oct 2009

    Tri-Diagonalizing Approach on Frequency Domain Equalization in a Doubly-Selective Channel

    Frequency-Domain Equalization (FDE) has been studied for suppressing Inter-Symbol Interference (ISI) due to frequency selective fading in single carrier systems. When a high-mobility terminal is assumed in the system, channel transition within an FFT block cannot be ignored. Then, the ISI reduction performance of FDE degrades since cyclicity of the...

    Provided By Hokkaido University

  • White Papers // Oct 2012

    Efficient Algorithm with Lognormal Distributions for Overloaded MIMO Wireless System

    Due to outstanding search strength and well organized steps, Genetic Algorithm (GA) has gained high interest in the field of overloaded Multiple-Input/Multiple-Output (MIMO) wireless communications system. For overloaded MIMO system employing spatial multiplexing transmission the authors evaluate the performance and complexity of Genetic Algorithm (GA)-based detection, against the Maximum-Likelihood (ML)...

    Provided By Hokkaido University

  • White Papers // Dec 2010

    Extending E-Learning Systems Based on Clause-Rule Model

    E-Learning systems are used by many learners and teachers. The developer is developing the e-Learning system. However, the developer cannot do system construction to satisfy all of users' demands. The authors discuss a method of constructing e-Learning systems where learners and teachers can design, try to use, and share extending...

    Provided By Hokkaido University

  • White Papers // Feb 2010

    Monetary Policy Rules And The Effects Of Fiscal Policy

    The authors explore the implications of adopting a Taylor-type interest-rate rule in a simple monetary growth model in which budget deficits are financed partly by unbaked government debt. To ensure uniqueness of the steady-state equilibrium, monetary policy cannot be either too "Active" or too "Passive". The effects of fiscal policy...

    Provided By Hokkaido University

  • White Papers // Sep 2009

    On the Relationship Between Trading Network and WWW Network: A Preferential Attachment Perspective

    This paper describes the relationship between trading network and WWW network from preferential attachment mechanism perspective. This mechanism is known to be the underlying principle in the network evolution and has been incorporated to formulate two famous web pages ranking algorithms, PageRank and HITS. The authors point out the differences...

    Provided By Hokkaido University