Essays about: "unlicensed"

Showing result 16 - 20 of 44 essays containing the word unlicensed.

1. 16. Quantitative Analysis on the Feasibility and Benefits of Local Licensing

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

   Author : Gregorius Kristian Purwidi; [2017]
   Keywords : ;

   Abstract : In-building connectivity in enterprises and vertical industries will emerge as an important use case of future 5G mobile services, given the fact that 80% of the traffic is generated indoor [1]. However, spectrum solution to this use case, which is unlicensed spectrum, may not be able to secure spectrum availability for large traffic demand as well as critical use case due to the nature of Listen-before-Talk (LBT) protocol. READ MORE

3. 17. Outage Probability Analysis of CooperativeCognitive Radio Networks Over κ − μ Shadowed Fading Channels

   University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

   Author : Mahathi Poreddy; [2016]
   Keywords : Cognitive Radio Networks; Cooperative Communications; Decode-and-Forward Relays; Multiple-relay; Outage Probability;

   Abstract : Over time, wireless technology advancements in the field of communications have been attracting every individual to turn into a wireless user. To accommodate the increasing number of users and to avoid the problem of spectrum scarcity, the concept of Cognitive Radio Network (CRN) has been developed. READ MORE

4. 18. Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays

   University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

   Author : Advaita Advaita; Mani Meghala Gali; [2016]
   Keywords : Cognitive radio; Cooperative communications; Space time coding; MIMO systems; Outage probability;

   Abstract : With the rapid growth of wireless communications, the demand for the various multimedia services is increasing day by day leading to a deficit in the frequency spectrum resources. To overcome this problem, the concept of cognitive radio technology has been proposed which allows the unlicensed secondary user (SU) to access the licensed spectrum of the primary user (PU), thus improving the spectrum utilization. READ MORE

5. 19. The Design and Linearization of 60GHz Injection Locked Power Amplifier

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Luhao Wang; [2016]
   Keywords : Power Amplifier; Injection-locking; Adaptive biasing; predistortion; Technology and Engineering;

   Abstract : The RF power amplifier is one of the most critical blocks of transceivers, as it is expected to provide a suitable output power with high gain, efficiency and linearity. In this paper, a 60-GHz power amplifier based on an injection locked structure is demonstrated in a standard 65 CMOS technology. READ MORE

6. 20. Quantification of audio quality loss after wireless transfer

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Frida Hedlund; Ylva Jonasson; [2015]
   Keywords : Bluetooth link; Mobile phones; Real-life testing; evaluation software; sound quality measurements; objective grading; PESQ; PEAQ; Sound quality; Technology and Engineering;

   Abstract : The report describes a quality measurement for audio, both the theoretical background and implementation. It begins by describing the unlicensed methods the implementation is based on, Segmental SNR, Frequency Weighted Segmental SNR, Log-Likelihood Ratio, Cepstral Distance and Weighted Slope Spectral distance, and the commercial methods used as reference, PEAQ and PESQ. READ MORE