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According to underwater terrain characteristic, the multi-index synthetic evaluation theory is used for calculating matching area of an underwater terrain-aided navigation system in this paper. Considering the terrain elevation standard deviation, roughness, terrain correlation coefficient, topographic information entropy and other crucial terrain characteristic parameters on the effect of navigation...
In view of the complexity and diversity of packages in telecom service, in-depth analysis of family customer decision-making behaviors is of important practical significance to package design and marketing. Applying theory of arbitration and coordination in group decision-making, this paper discusses the issue of family decision-making on packages selection in consultation decision-making family whose...
In order to support more value-added services and a larger space for IP addresses, the Internet requries to classify IPv6 packets into flows for specific requirements. High performance IPv6 packet classification (PC) algorithms are therefore in high demand. This paper proposes a new IPv6 PC algorithm based on flow label (FL), called FLIN (Flow Label Initial Noticed). FLIN is fast and scalable with...
Packet classification (PC) is one of the core technologies for next generation network service. The goal is to classify packet into different ??flow?? and classification result can be applied in differentiated service. Though many multi-dimensional classifications have been put forward, few of them could accomplish fast search speed, low storage requirements and fast updates at the same time, especially...
Combining precoding and orthogonal space-time block codes (OSTBCs) can obtain full-diversity order and provide additional array gain. This paper proposes optimal linear precoding and quantization for OSTBCs with erroneous feedback. Lloyd algorithm is used for designing codebooks with noisy quantized feedback in general case. In two extreme cases, the transmitter can obtain perfect CSI and no CSI available,...
In this paper, a novel sequence detection method based on codebook with channel correlation information (CCI) for the reliable feedback of CQI (channel quality information) in the uplink fast feedback channel is proposed, which utilizes the codebook based maximum likelihood detection method. Using the relatively less training frames, we can get an accurate approximation of the statistical CCI for...
According to the classification principles of educational information in LOM, and the characteristics of grid community and resource distribution in grid, on the basis of a proposed model of grid community based education resource, the brief paper puts forward constructing the concept of Equivalent grid community group, building the mechanism of resources-sharing and information-spreading between...
In this paper, we propose a user motivation model for Web search engines. We construct the user motivation model to assist the Web search engines, so that the efficiency and accuracy rate of information retrieval can be improved. The user motivation model combines the similar behavior models of the users based on the theory of anthroponomy and displays the returned results according to the clustering...
Target identification has been an active researching area in past decades. In this paper, we present an iteration procedure to optimize the size of the undercomplete dictionary when multiple undercomplete dictionaries are used to characterize the scattering signatures of a complex target. Furthermore, we extend the signature reconstruction and decision criterion with only single undercomplete dictionary...
Portfolio optimization problem decides the percentage of the overall portfolio value allocated to each portfolio component with specified risk-return characteristics. A multistage optimization manages portfolio in constantly changing financial markets by periodically rebalancing the asset portfolio to achieve return maximization and/or risk minimization. In this paper, we present a decision-making...
Grid technology is a research hotspot nowadays. To apply grid technology to education resources management will maximize integration of existing education resources. Education resources can be managed effectively by using distributional management thought, which can change current status of the disorder about education resources management. In this paper, resource classification standard in LOM is...
Internet migration from IPv4 to IPv6 has introduced more challenge to IP address lookup problem. Nowadays, some existing address lookup algorithms work well for IPv4 addresses, however, few of them can scale well to IPv6 both in lookup and update speed. As IPv6 uses 128-bit addresses, schemes whose lookup time grows with address length become less attractive. In this paper, a novel level based IPv6...
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