Search for dissertations about: "relay networks"

Showing result 11 - 15 of 63 swedish dissertations containing the words relay networks.

  2. 11. On the Performance of Underlay Cognitive Radio Networks with Interference Constraints and Relaying

    Author : Charles Kabiri; Blekinge Tekniska Högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cognitive Radio Networks; Cognitive Cooperative Relay Networks; Underlay Spectrum Access; Interference Constraint; Outage Constraint;

    Abstract : Efficiently allocating the scarce and expensive radio resources is a key challenge for advanced radio communication systems. To this end, cognitive radio (CR) has emerged as a promising solution which can offer considerable improvements in spectrum utilization. READ MORE

  4. 12. Performance Analysis of Cognitive Radio Networks with Interference Constraints

    Author : Hung Tran; Blekinge Tekniska Högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cognitive Radio Networks; Spectrum Underlay Access; Interference Constraints; Cognitive Cooperative Radio Networks;

    Abstract : To support the rapidly increasing number of mobile users and mobile multimedia services, and the related demands for bandwidth, wireless communication technology is facing a potentially scarcity of radio spectrum resources. However, spectrum measurement campaigns have shown that the shortage of radio spectrum is due to inefficient usage and inflexible spectrum allocation policies. READ MORE

  5. 13. Integrated Access and Backhaul for 5G and Beyond (6G)

    Author : Charitha Madapatha Madapathage Don; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stochastic geometry; Node selection; Beyond 5G; Backhaul; 6G; Blockage; Coverage probability; Poisson point process PPP ; Integrated access and backhaul IAB ; Relay; Constrained deployment; 5G new radio NR ; Tree foliage; Millimeter wave mmWave communications; Densification; 3GPP; Wireless backhaul; Routing; Genetic algorithm GA ; Topology optimization;

    Abstract : Enabling network densification to support coverage-limited millimeter wave (mmWave) frequencies is one of the main requirements for 5G and beyond. It is challenging to connect a high number of base stations (BSs) to the core network via a transport network. READ MORE

  6. 14. Fundamental Aspects of Cooperative Interference Management

    Author : Hieu Do; Mikael Skoglund; Tobias Oechtering; Vincent Poor; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Interference management; Interference channels; Relay networks;

    Abstract : Today and future wireless networks are facing one of their greatest limiting factors:interference. This is due to the unprecedented increase in the number of connecteddevices. READ MORE

  7. 15. Low-delay sensing and transmission in wireless sensor networks

    Author : Johannes Karlsson; Mikael Skoglund; Markus Flierl; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative communication; wireless sensor networks; low-delay transmission; joint source-channel coding; estimation; quantization; Telecommunication; Telekommunikation;

    Abstract : With the increasing popularity and relevance of ad-hoc wireless sensor networks, cooperative transmission is more relevant than ever. In this thesis, we consider methods for optimization of cooperative transmission schemes in wireless sensor networks. READ MORE