Sökning: "Ki Won Sung"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Ki Won Sung.

1. 1. Towards Affordable Provisioning Strategies for Local Mobile Services in Dense Urban Areas : A Techno-economic Study

   Författare :Ashraf Awadelkarim Widaa Ahmed; Jan Markendahl; Ki Won Sung; Jens Zander; Bogdan Timus; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : The future mobile communication networks are expected to cope with growing local usage patterns especially in dense urban areas at more affordable deployment and operation expenses. Beyond leveraging small cell architectures and advanced radio access technologies; more radio spectrum are expected to be required to achieve the desired techno-economic targets. LÄS MER

3. 2. Integrated Sensing and Communication in Cell-Free Massive MIMO

   Författare :Zinat Behdad; Cicek Cavdar; Ki Won Sung; Özlem Tugfe Demir; Huseyin Arslan; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Integrated sensing and communication; cell-free massive MIMO; power allocation; URLLC; C-RAN; convex-concave programming.; Integrerad avkänning och kommunikation; cellfri massiv MI- MO; effektallokering; URLLC; C-RAN; konvex-konkav programmering;

   Sammanfattning : Future mobile networks are anticipated to not only enhance communication performance but also facilitate new sensing-based applications. This highlights the essential role of integrated sensing and communication (ISAC) in sixth-generation (6G) and beyond mobile networks. LÄS MER

4. 3. Feasibility and Performance of Dynamic TDD in Dense and Ultra-Dense Wireless Access Networks

   Författare :Haris Celik; Ki Won Sung; Jens Zander; Mehdi Bennis; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : Meeting the seemingly never-ending increase in traffic over wireless networks presents a major challenge for future mobile network design. Given that much of the traffic is expected to be more time-varying and unpredictable, time division duplexing (TDD) is gaining increasing favorability in part thanks to its ability to better accommodate network-wide traffic variations. LÄS MER

5. 4. On the Performance of Dynamic TDD in Ultra-Dense Wireless Access Networks

   Författare :Haris Celik; Ki Won Sung; Jens Zander; Gustav Wikström; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : The appetite for wireless high-data rate services is expected to continue for many years to come and drive the need for more capacity. Ultra-dense networks (UDNs) represent a paradigm shift where each base station (BS) serves only a few user equipments (UEs). LÄS MER

7. 5. Mobility Management and Localizability for Cellular Connected UAVs

   Författare :Irshad Ahmad Meer; Cicek Cavdar; Mustafa Ozger; Ki Won Sung; Halim Yanikomeroglu; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Unmanned aerial vehicles; Localization; Service availability; Air-to-ground channel; Mobility; Handover; Unmanned aerial vehicles; Localization; Service availability; Air-to-ground channel; Mobility; Handover;

   Sammanfattning : Unmanned Aerial Vehicles (UAVs) connected to cellular networks present novel challenges and opportunities in mobility management and localization, distinct from those faced by terrestrial users. This thesis presents an integrated approach, combining two key aspects essential for the integration of UAVs with cellular networks. LÄS MER