Agency for Science, Technology and Research

Singapore University of Technology and Design

Chau Yuen

Sumei Sun

Quee Seng Tony Quek

Lokesh Bheema Thiagarajan

Quee Tony Seng Quek

Linlin You

Bige Tuncer

Platforms and mechanisms for multi-source data management are provided. In accordance with one aspect, a knowledge mining engine comprising an on-line knowledge mining component supporting multi-dimensional queries for on-line knowledge mining of multi-source data and an off-line knowledge mining component for running knowledge mining procedures for off-line knowledge mining of the multi-source data. The multi-source data management platform/mechanism may also include an adaptive data collector to collect data actively and passively, a data analysis cascade to cleanse and analyse the multi-source data concurrently and separately, a data integration cascade to consolidate and integrate the multi-source data according to multiple data integration dimensions, a centralized data repository implementing RESTful APIs for data CRUD operations and storing multi-source data generated in the platform, and a data sharing portal to share data and mined knowledge to users and up-layer applications.

Multi-source data management mechanism and platform

Methods and systems are proposed for transmitting data from a source () to a destination () via a relay station () having multiple antennae (). The relay station () receives from the source a message containing the data and a first cyclic prefix. It does this using each of its antennae (), so producing multiple respective received signals. In certain embodiments, the relay station () removes the first cyclic prefix from the received signals, replacing it with a new one. In other embodiments, the relay station () removes only a portion of the first cyclic prefix. In either case, the relay station () may apply space-time coding to generate second signals, which it transmits to the destination (), which extracts the data. Methods are also proposed for estimating parameters of the channel, to enable the destination () to decode the data.

Cyclic prefix schemes

An analog space-time relay method and apparatus for a wireless communication relay channel is disclosed herein. In a specific embodiment, the analog space-time relay channel () includes first and second relay antennas () arranged to relay an information signal transmitted from a source station () to a destination station (). The method comprises the steps of: (i) receiving a first symbol sequence at the first relay antenna (), the first symbol sequence comprising the information signal and a first noise element; (ii) receiving a second symbol sequence at the second relay antenna (), the second symbol sequence comprising the information signal and a second noise element; (iii) transmitting a first signal by the first relay antenna (), the first signal being associated with the second symbol sequence received at the second relay antenna (); (iv) transmitting a second signal by the second relay antenna (), the second signal being associated with the first symbol sequence received at the first relay antenna (). Method and apparatus for deriving a complex conjugate for a symbol sequence and a frame header structure are also disclosed.

Analog space-time relay method and apparatus for a wireless communication relay channel

According to one embodiment of the invention, a method for encoding a data matrix having at least a first component and a second component is provided wherein the value of the first component is determined, the number of bits to be used for encoding the second component is selected based on the value of the first component, the second component is encoded using the selected number of bits, and the first component is encoded.

Growing community of inventors

Singapore, Singapore

Chau Yuen