Sökning: "wireless communications"

Visar resultat 1 - 5 av 230 avhandlingar innehållade orden wireless communications.

  1. 1. Cooperative Communications : Link Reliability and Power Efficiency

    Författare :Tafzeel ur Rehman Ahsin; Ben Slimane; Xavier Lagrange; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cooperative Communications; Link Reliability; Power Efficiency; Energy Efficiency; Network Coding; Cooperative Relaying; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Sammanfattning : Demand for high data rates is increasing rapidly for the future wireless generations, due to the requirement ofubiquitous coverage for wireless broadband services. More base stations are needed to deliver these services, in order tocope with the increased capacity demand and inherent unreliable nature of wireless medium. LÄS MER

  2. 2. Autonomic wireless networking

    Författare :Héctor Luis Velayos Muñoz; Gunnar Karlsson; George Polyzos; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Electrical engineering; wireless LAN; autonomic communications; Elektroteknik; elektronik och fotonik; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Sammanfattning : Large-scale deployment of IEEE 802.11 wireless LANs (WLANs) remains a significant challenge. Many access points (APs) must be deployed and interconnected without a-priori knowledge of the demand. We consider that the deployment should be iterative, as follows. LÄS MER

  3. 3. Seamless Communications

    Författare :Lennart Isaksson; []

    Sammanfattning : The evolution of today’s wireless technologies and small hand-held devices has enabled the handling of the trade-off between mobility and performance. Things have, however, become more complex. Users demand high performance when using small and resource-efficient devices. LÄS MER

  4. 4. Design, Implementation and Validation of Resource-Aware and Resilient Wireless Networked Control Systems

    Författare :José Araújo; Karl H. Johansson; Jan Lunze; KTH; []
    Nyckelord :wireless networked control systems; NCS; wireless communications; control; distributed reconfiguration; resilient; fault-tolerant control; IEEE 802.15.4; resource-aware; WNCS; aperiodic control; event-triggered; self-triggered; event-based; co-simulator; estimation; GISOO; MAC; scheduling; routing; RPL; delay; out-of-order communications; CPS; Cyber Physical Systems; Wireless Cyber Physical Systems; Wireless Cyber Physical Control Systems; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Networked control over wireless networks is of growing importance in many application domains such as industrial control, building automation and transportation systems. Wide deployment however, requires systematic design tools to enable efficient resource usage while guaranteeing close-loop control performance. LÄS MER

  5. 5. Digital Compensation Techniques for Transmitters in Wireless Communications Networks

    Författare :Efrain Zenteno; Peter Händel; Magnus Isaksson; Thomas Brazil; Högskolan i Gävle; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Digital compensation; MIMO; wireless communications; satellite; Volterra; Amplfiers; HW effects; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Since they appeared, wireless technologies have deeply transformed our society. Today, wireless internet access and other wireless applications demandincreasingly more traffic. However, the continuous traffic increase can be unbearableand requires rethinking and redesigning the wireless technologies inmany different aspects. LÄS MER