Search for dissertations about: "variable rate coding"

Showing result 1 - 5 of 15 swedish dissertations containing the words variable rate coding.

  2. 1. Speech coding from a variable rate perspective

    Author : Thomas Eriksson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; CELP; variable rate coding; speech coding;

    Abstract : .... READ MORE

  4. 2. Vector Quantization in Speech Coding. Variable Rate, Memory and Lattice Quantization

    Author : Thomas Eriksson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This dissertation focuses on different quantization methods in speech coding. Variable rate quantization has the potential to substantially reduce the bit rate requirements in speech coding. READ MORE

  5. 3. Bounds on the maximum coding rate of multiple-access channels and feedback channels

    Author : Rahul Devassy; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : We provide upper and lower bounds on the coding rate of multiple-access channels (MACs) and feedback channels.Traditional MACs have been extensively studied under the assumption of availability of perfect channel state information (CSI).In Paper A we relax this assumption for a Rayleigh block-fading MAC and provide bounds on the sum-rate capacity. READ MORE

  6. 4. Coding, Modulation and Multiuser Decoding for DS-CDMA Systems

    Author : Tony Ottosson Gadd; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The general trend both in wireless and fixed network communication systems is flexibility in services, data rates, desired delay and performance. Future systems should not be designed for specific services but be more general and allow for a multitude of services, both now existing and those not yet invented. READ MORE

  7. 5. Rate, Reliability and Secrecy Performance Analysis and Optimization for Millimeter WaveCommunications

    Author : Shaocheng Huang; Ming Xiao; Mikael Skoglund; Marco Renzo; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Abstract : With the fast development of electronic devices and computer science, various emerging applications (e.g., virtual and augmented reality, ultra-high-definition three-dimensional video, autonomous driving, big data analysis, etc. READ MORE