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The concept of complex event processing (CEP) and complex-event-aware service have been extensively studied to retrieve relevant information from massive amount of realtime streaming events. In mobile environment, the Mobilityaware CEP (MCEP) system was proposed to address the issue of synchronization problem between different query ranges and MCEP operators. We noticed that MCEP systems lack the...
Sum feedback rate can be a bottleneck for codebook-based multiple-input-multiple-output (MIMO) beamforming. So we propose a scheme using pseudorandom beamforming vectors and a threshold for feedback to address this problem. In our scheme, the basestation produces beamforming vectors in a pseudorandom way, and user calculates the angle between the beamforming vectors and its channel state information...
Today, the technology for video streaming over the Internet is converging towards a paradigm named HTTP-based adaptive streaming (HAS), which brings two new features. First, by using HTTP/TCP, it leverages network-friendly TCP to achieve both firewall/NAT traversal and bandwidth sharing. Second, by pre-encoding and storing the video in a number of discrete rate levels, it introduces video bitrate...
A novel Network on Chip (NoC) architecture based on local bus to achieve high efficient multicast and broadcast data transmission is proposed in this paper. The Network Coding (NC) is adopted in the proposed architecture. Compared with the traditional NoC design, the proposed NoC architecture can improve the data throughput and decrease the hardware complexity. In the proposed architecture the process...
The solid-state disk (SSD) is becoming increasingly popular, especially among users whose workloads exhibit substantial random access patterns. As SSD competes with the hard disk, whose per-GB cost keeps dramatically falling, the SSD must retain its performance advantages even with low-cost configurations, such as those with a small built-in DRAM cache for mapping table and using MLC NAND. To this...
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