Essays about: "Link-Adaptation"

Showing result 11 - 15 of 22 essays containing the word Link-Adaptation.

1. 11. Beam-Forming-Aware Link-Adaptation for Differential Beam-Forming in an LTE FDD System

   University essay from Linköpings universitet/Kommunikationssystem

   Author : Mikael Karlsson; [2016]
   Keywords : Beam-Forming-Aware; Link-Adaptation; Differential Beam-Forming; LTE;

   Abstract : The ability for base stations to be able to beam-form their signals, directing the signal energy to specific users, is a topic of research that has been heavily studied during the last decades. The beam-forming technique aims to increase the signal-to-interference-and-noise-ratio of the user and, consequently, increase the capacity and coverage of the communication system. READ MORE

3. 12. Test Data Post-Processing and Analysis of Link Adaptation

   University essay from Linköpings universitet/Institutionen för datavetenskap; Linköpings universitet/Tekniska fakulteten

   Author : Paul Nedstrand; Razmus Lindgren; [2015]
   Keywords : ;

   Abstract : Analysing the performance of cell phones and other wireless connected devices to mobile networks are key when validating if the standard of the system is achieved. This justies having testing tools that can produce a good overview of the data between base stations and cell phones to see the performance of the cell phone. READ MORE

4. 13. A study of the system impact from different approaches to link adaptation in WLAN

   University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Author : Kevin Perez Moreno; [2015]
   Keywords : WLAN; link adaptation; medium reuse; channel estimation;

   Abstract : The IEEE 802.11 standards define several transmission rates that can be used at the physical layer to adapt the transmission rate to channel conditions. This dynamic adaptation attempts to improve the performance in Wireless LAN (WLAN) and hence can have impact on the Quality of Service (QoS) perceived by the users. READ MORE

5. 14. Channel Prediction for Moving Relays

   University essay from Signaler och System

   Author : Ingrid Wiklund; [2013]
   Keywords : Channel prediction;

   Abstract : In mobile communications, channel side information at transmitters can increasecapacity. For moving relays nodes, local nodes placed on buses and trams in urbanareas, the channel state information is outdated for control delays of severalmilliseconds, as in the LTE system. READ MORE

6. 15. Realistic Multi-Cell Interference Coordination in 4G/LTE

   University essay from Kommunikationssystem; Tekniska högskolan

   Author : Sara Örn; [2012]
   Keywords : link adaptation; interference estimation; coordinated scheduling; LTE; 4G; radio resource management;

   Abstract : In the LTE mobile system, all cells use the same set of frequencies. This means that a user could experience interference from other cells. A method that has been studied in order to reduce this interference and thereby increase data rate or system throughput is to coordinate scheduling between cells. READ MORE