Sökning: "switching networks"

Visar resultat 1 - 5 av 84 avhandlingar innehållade orden switching networks.

  1. 1. Layered optical networks : implications to switching and transmission

    Författare :Stefan Larsson; KTH; []
    Nyckelord :;

    Sammanfattning : With the aim of supporting and enhancing high-capacitycommunication networks, such as telephony, Internet and others,this work has investigated:· transmission gains withtime-slotted optical communication, · performance ofoptical add/drop multiplexers (OADMs) and optical crossconnects(OXCs), · OXC networks serving Internet Protocol(IP)-routers, · packet hop reductions in IP-controlledoptical networks, · a simple optical neighbour discoverymethod, · economics of complementing a client network withan optical express layer.Time-slotting was shown to enable bi-directionaltransmission at the same frequency and multiwavelengthtransmission over dispersion-shifted fibre. LÄS MER

  3. 2. Design, analysis and simultion for optical access and wide-area networks

    Författare :Jiajia Chen; Lena Wosinska; Hussein Mouftah; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fiber access networks; passive optical network; dynamic bandwidth allocation; reliability; switched optical networks; switching node; optical circuit switching; optical packet switching; routing and wavelength assignment; security; Telecommunication; Telekommunikation;

    Sammanfattning : Due to the tremendous growth of traffic volume caused by both exponential increase of number of Internet users and continual emergence of new bandwidth demanding applications, high capacity networks are required in order to satisfactorily handle the extremely large amount of traffic. Hence, optical fiber communication is the key technology for the network infrastructure. LÄS MER

  4. 3. Rekindled Business Relationships : A study of the re-activation process of buyer-supplier relationships in the defence and security industry in Sweden

    Författare :León Poblete; Virpi Havila; Anna Bengtson; Tähtinen Jaana; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Buyer-supplier relationships; supplier switching; switching back; re-activation; de-activation; business networks; supply chain; purchasing; Business Studies; Företagsekonomi;

    Sammanfattning : Most research on buyer-supplier relationships has mainly focused on initiating, developing and ending the relationship with suppliers. However, the firm’s possibilities of doing business again with former suppliers have been largely overlooked. LÄS MER

  5. 4. Using wormhole switching for networks on chip : feasibility analysis and microarchitecture adaptation

    Författare :Zhonghai Lu; KTH; []
    Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Network-on-Chip (NoC) is proposed as a systematic approach to address future System-on-Chip (SoC) design difficulties. Due to its good performance and small buffering requirement, wormhole switching is being considered as a main network flow control mechanism for on-chip networks. LÄS MER

  7. 5. Discrete-Time Cellular Neural Networks Implemented on Field-Programmable Gate-Arrays to Build a Virtual Sensor System

    Författare :Suleyman Malki; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cellular Neural Networks; Image processing; Discrete-Time Cellular Neural Networks; Packet switching; FPGA; Velocity measurement; Autowaves; Robot navigation;

    Sammanfattning : Image processing is one of the popular applications of Cellular Neural Networks. Macro enriched field-programmable gate-arrays can be used to realize such systems on silicon. At first glance a pipelined approach, based on circuit switching, seems promising. LÄS MER