Search for dissertations about: "hybrid-arq"

Showing result 1 - 5 of 6 swedish dissertations containing the word hybrid-arq.

  1. 1. Hybrid ARQ Using Serially Concatenated Block Codes for Real-Time Communication An Iterative Decoding Approach

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Elisabeth Uhlemann; Högskolan i Halmstad.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Real-Time Communications; Hybrid ARQ; Iterative Decoding; QoS; Deadline Dependent Coding; TECHNOLOGY Information technology Telecommunication Telecommunication theory; TEKNIKVETENSKAP Informationsteknik Telekommunikation Telekommunikationsteori;

    Abstract : The ongoing wireless communication evolution offers improvements for industrial applications where traditional wireline solutions causes prohibitive problems in terms of cost and feasibility. Many of these new wireless applications are packet oriented and time-critical. READ MORE

  2. 2. On Performance Analysis of Retransmission Schemes with Fading Channels

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Peter Larsson; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatic repeat request; ARQ; hybrid-arq; retransmission schemes; Telecommunication; Telekommunikation;

    Abstract : Future wireless communication systems and services bring increased performance demands, with respect to data-rate(s), reliable communication, (stochastic) real-time guarantees, and more. In this context, not only new communication schemes are needed, but also more capable performance analysis methods are essential. READ MORE

  3. 3. Improved Techniques for Retransmission and Relaying in Wireless Systems

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Chaitanya V. K. Tumula; Linköpings universitet.; Linköpings universitet.; [2011]

    Abstract : The last three decades have seen significant advances in the wireless communication field. As the data rates of wireless systems are increasing, the demand for mobile services also is increasing rapidly. Like other natural resources, radio spectrum suitable for mobile wireless communications is also limited. READ MORE

  4. 4. Adaptive Concatenated Coding for Wireless Real-Time Communications

    University dissertation from Göteborg : Chalmers tekniska högskola

    Author : Elisabeth Uhlemann; Högskolan i Halmstad.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TECHNOLOGY; TEKNIKVETENSKAP; Incremental redundancy hybrid ARQ; Multiple concatenated codes; Iterative decoding; Rate compatible punctured codes; Union bounds; EXIT charts; Convergence analysis; Wireless real-time communication; Quality of service; convergence analysis; quality of service; rate compatible punctured codes; multiple concatenated codes; iterative decoding; wireless real-time communication; incremental redundancy hybrid ARQ; union bounds;

    Abstract : The objective of this thesis is to improve the performance of real-time communication overa wireless channel, by means of specifically tailored channel coding. The deadlinedependent coding (DDC) communication protocol presented here lets the timeliness and thereliability of the delivered information constitute quality of service (QoS) parametersrequested by the application. READ MORE

  5. 5. Design and Performance of Packet Retransmission Diversity Scheme for Wireless Networks

    University dissertation from Sundsvall : Mittuniverstietet

    Author : Mikael Gidlund; Mittuniversitetet.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik;

    Abstract : High data-rate wireless access systems are currently under discussion since the demand for wireless multimedia communication is rapidly increasing due to strong advances in wireless Internet services. Reliable high-speed data communications is one of the major challenges with regards to harsh conditions. READ MORE