Sökning: "VLSI electronics"
Visar resultat 1 - 5 av 20 avhandlingar innehållade orden VLSI electronics.
1. Trellis Decoding: From Algorithm to Flexible Architectures
Sammanfattning : Trellis decoding is a popular method to recover encoded information corrupted during transmission over a noisy channel. Prominent members of this class of decoding algorithms are the Viterbi algorithm, which provides maximum likelihood estimates, and the BCJR algorithm, which is a maximum a posteriori estimator commonly used in iterative decoding. LÄS MER
2. Custom Designed Digital Signal Processors Using Bit-Serial Arithmetic
Sammanfattning : This thesis presents two prime contributions. First, digital filters for both intermediate and base band filtering for mobile communication are presented. Second, a local clock for on-chip clock generation is introduced. The intermediate frequency filter is a digital alternative to today's analog filters. LÄS MER
3. Manufacturability in the Nanometer Era: Regularity considerations in VLSI Circuits
Sammanfattning : Each reduction of the technology node has, along with improvements in IC fabricationtechnology, been the main driver in delivering the demand for function rich, integratedmobile electronics that are so prevalent. As devices keep growing smaller and geometriesapproach the order of a few atomic layers, it is increasingly difficult to achievecost-effective mass production for reasons related to performance and fabrication capability. LÄS MER
4. Design Issues in VLSI Implementation of Image Processing Hardware Accelerators - Methodology and Implementation
Sammanfattning : With the increasing capacity in today's hardware system design enabled by technology scaling, image processing algorithms with substantially more complexity can be implemented in a single chip with real-time performance. Combined with the demand for low power consumption or larger resolution seen in many applications such as mobile devices and HDTV, new design methodologies and hardware architectures are constantly called for to bridge the gap between designers productivity and what the technology could offer. LÄS MER
5. MIMO Decoding Algorithm and Implementation
Sammanfattning : Multi-Input Multi-Output system has been one of the hot technologies for future wireless communications, since it can increase the capacity (coverage or link quality in other senses) at no cost in frequency spectrum. This doctoral thesis investigates improvements to MIMO decoding algorithms and presents VLSI implementation results. LÄS MER