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Video Coding For Bit Rates 64kbps And Below, Geoffrey N. Alagoda
Video Coding For Bit Rates 64kbps And Below, Geoffrey N. Alagoda
Theses : Honours
With digital motion video for either transmission or storage, there always exists a trade-off between the data transmission rate and the picture quality. The lower the transmission bit-rate is made, the more the quality of the image tends to degrade. With usual transform coding schemes the degradation usually occurs when low bit-rates, that is less than about 64Kbps, are used. The resultant image tends to suffer visually from a ''blocking" effect. This thesis therefore, is based on the development of a different implementation scheme, for motion video compression or encoding, so as to support both low bit-rates, around 64Kbps or …
Cossap Simulation Model Of Ds-Cdma Indoor Microwave Atm Lan, Keng T. Tan
Cossap Simulation Model Of Ds-Cdma Indoor Microwave Atm Lan, Keng T. Tan
Theses : Honours
This thesis presents an original work in the area of designing and implementing a simulation testbed for modelling a high speed spread spectrum Asynchronous Transfer Mode (ATM) Local Area Network (LAN). The spread spectrum technique used in this LAN model is Direct Sequence Code Division Multiple Access (DS-CDMA). The simulation model includes at least a physical layer of such a LAN, embedded into the COSSAP1 simulation environment, and has been fully tested. All the newly developed building blocks are comprised of standard blocks from the COSSAP libraries or compatible user-built primitive blocks (only where it is absolutely necessary), and …