Sökning: "VLIW"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet VLIW.

  1. 1. Dynamically Reconfigurable Architectures for Real-time Baseband Processing

    Författare :Chenxin Zhang; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reconfigurable Computing; Coarse-Grained Architecture; Dynamic Reconfiguration; SIMD; VLIW; ASIP; Vector Processor; Baseband Processing; OFDM; MIMO; Channel Estimation; Symbol Detection.;

    Sammanfattning : Motivated by challenges from today's fast-evolving wireless communication standards and soaring silicon design cost, it is important to design a flexible hardware platform that can be dynamically reconfigured to adapt to current operating scenarios, provide seamless handover between different communication networks, and extend the longevity of advanced systems. Moreover, increasingly sophisticated baseband processing algorithms pose stringent requirements of real-time processing for hardware implementations, especially for power-budget limited mobile terminals. LÄS MER

  2. 2. Integrated Optimal Code Generation for Digital Signal Processors

    Författare :Andrzej Bednarski; Christoph Kessler; Alain Darte; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Instruction-level parallelism; integrated code generation; dynamic programming; instruction scheduling; instruction selection; clustered VLIW architecture; integer linear programming; architecture description language; Computer science; Datavetenskap;

    Sammanfattning : In this thesis we address the problem of optimal code generation for irregular architectures such as Digital Signal Processors (DSPs).Code generation consists mainly of three interrelated optimization tasks: instruction selection (with resource allocation), instruction scheduling and register allocation. LÄS MER

  3. 3. Integrated Register Allocation and Instruction Scheduling with Constraint Programming

    Författare :Roberto Castañeda Lozano; Christian Schulte; Mats Carlsson; Ingo Sander; Peter van Beek; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Computer Science; Datalogi;

    Sammanfattning : This dissertation proposes a combinatorial model, program representations, and constraint solving techniques for integrated register allocation and instruction scheduling in compiler back-ends. In contrast to traditional compilers based on heuristics, the proposed approach generates potentially optimal code by considering all trade-offs between interdependent decisions as a single optimization problem. LÄS MER

  4. 4. Design of programmable multi-standard baseband processors

    Författare :Anders Nilsson; Dake Liu; Gerhard Fettweis; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DSP; baseband processor; ASIP; Computer engineering; Datorteknik;

    Sammanfattning : Efficient programmable baseband processors are important to enable true multi-standard radio platforms as convergence of mobile communication devices and systems requires multi-standard processing devices. The processors do not only need the capability to handle differences in a single standard, often there is a great need to cover several completely different modulation methods such as OFDM and CDMA with the same processing device. LÄS MER

  5. 5. Design of Energy-Efficient High-Performance ASIP-DSP Platforms

    Författare :Andréas Karlsson; Dake Liu; Andreas Ehliar; Jarmo Takala; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In the last ten years, limited clock frequency scaling and increasing power density has shifted IC design focus towards parallelism, heterogeneity and energy efficiency. Improving energy efficiency is by no means simple and it calls for a reevaluation of old design choices in processor architecture, and perhaps more importantly, development of new programming methodologies that exploit the features of modern architectures. LÄS MER