UCLA

Displaying 1-6 of 6 results

  • White Papers // Jan 2011

    Optimizing Timestamp Management in Data Stream Management Systems

    It has long been recognized that multi-stream operators, such as union and join, often have to wait idly in a temporarily blocked state, as a result of skews between the timestamps of their input streams. Recently, it has been shown that the injection of heartbeat information through punctuation tuples can...

    Provided By UCLA

  • White Papers // Jan 2011

    Mining Databases and Data Streams With Query Languages and Rules

    Among data-intensive applications that are beyond the reach of traditional Data Base Management Systems (DBMS), data mining stands out because of practical importance and the complexity of the research problems that must be solved before the vision of Inductive DBMS can become a reality. In this paper, the authors first...

    Provided By UCLA

  • White Papers // Dec 2010

    MIPS: MIMO Power Save in 802.11n Wireless Networks

    A fundamental limitation of applying MIMO in battery-constrained, 802.11n-enabled portable devices, is excessive power consumption of multiple active RF chains. The authors start the study in 802.11n MIMO power save (MIPS) by seeking to identify the factors that determine the most energy efficient chain setting. Surprisingly, the experimental results show...

    Provided By UCLA

  • White Papers // Sep 2009

    Bounds on Network Coding and Multi-Rate Diversity Gain in Multicast Wireless Applications

    This paper investigates the fundamental limits on the gain of joint Network Coding and link-layer transmission Rate Diversity in wireless multicast applications. Network Coding has been shown to improve throughput of wireless multicast in various scenarios and applications. Those applications can further exploit link-layer Rate Diversity, whereby individual nodes can...

    Provided By UCLA

  • White Papers // Jan 2009

    Proportional Fair Frequency-Domain Packet Scheduling for 3GPP LTE Uplink

    With the power consumption issue of mobile handset taken into account, Single-Carrier FDMA (SC-FDMA) has been selected for 3GPP Long-Term Evolution (LTE) uplink multiple access scheme. Like in OFDMA downlink, it enables multiple users to be served simultaneously in uplink as well. However, its single carrier property requires that all...

    Provided By UCLA

  • White Papers // Sep 2004

    Modeling Movie Lifecycles and Market Share

    The study examines box office sales in the context of a market share model. This is accomplished by developing a combination of a sliding-window logit model and a Gamma diffusion pattern, in a hierarchical Bayes framework. The paper shows that accounting for the full choice set available every week not...

    Provided By UCLA

  • White Papers // Sep 2004

    Modeling Movie Lifecycles and Market Share

    The study examines box office sales in the context of a market share model. This is accomplished by developing a combination of a sliding-window logit model and a Gamma diffusion pattern, in a hierarchical Bayes framework. The paper shows that accounting for the full choice set available every week not...

    Provided By UCLA

  • White Papers // Jan 2009

    Proportional Fair Frequency-Domain Packet Scheduling for 3GPP LTE Uplink

    With the power consumption issue of mobile handset taken into account, Single-Carrier FDMA (SC-FDMA) has been selected for 3GPP Long-Term Evolution (LTE) uplink multiple access scheme. Like in OFDMA downlink, it enables multiple users to be served simultaneously in uplink as well. However, its single carrier property requires that all...

    Provided By UCLA

  • White Papers // Dec 2010

    MIPS: MIMO Power Save in 802.11n Wireless Networks

    A fundamental limitation of applying MIMO in battery-constrained, 802.11n-enabled portable devices, is excessive power consumption of multiple active RF chains. The authors start the study in 802.11n MIMO power save (MIPS) by seeking to identify the factors that determine the most energy efficient chain setting. Surprisingly, the experimental results show...

    Provided By UCLA

  • White Papers // Jan 2011

    Optimizing Timestamp Management in Data Stream Management Systems

    It has long been recognized that multi-stream operators, such as union and join, often have to wait idly in a temporarily blocked state, as a result of skews between the timestamps of their input streams. Recently, it has been shown that the injection of heartbeat information through punctuation tuples can...

    Provided By UCLA

  • White Papers // Jan 2011

    Mining Databases and Data Streams With Query Languages and Rules

    Among data-intensive applications that are beyond the reach of traditional Data Base Management Systems (DBMS), data mining stands out because of practical importance and the complexity of the research problems that must be solved before the vision of Inductive DBMS can become a reality. In this paper, the authors first...

    Provided By UCLA

  • White Papers // Sep 2009

    Bounds on Network Coding and Multi-Rate Diversity Gain in Multicast Wireless Applications

    This paper investigates the fundamental limits on the gain of joint Network Coding and link-layer transmission Rate Diversity in wireless multicast applications. Network Coding has been shown to improve throughput of wireless multicast in various scenarios and applications. Those applications can further exploit link-layer Rate Diversity, whereby individual nodes can...

    Provided By UCLA