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Showing result 11 - 15 of 28 essays matching the above criteria.

1. 11. 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

3. 12. Developing a Fluid Flow Model for Mobile Video Transmission in the Presence of Play-Out Hysteresis

   University essay from Blekinge Tekniska Högskola/Institutionen för kommunikationssystem

   Author : Atefeh Dehghannayyeri; [2016]
   Keywords : fluid flow models; video transmission; play-out hysteresis; freeze; buffering;

   Abstract : This work focuses on improving video transmission quality over a mobile link. More specifically, the impact of buffering and link outages on the freeze probability of transmitted videos is studied. It introduces a new fluid flow model that provides an approximation of the freeze probability in the presence of play-out hysteresis. READ MORE

4. 13. 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. 14. Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols

   University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

   Author : Alekhya Kodide; [2016]
   Keywords : Cooperative communications; κ−µ shadowed fading; relaying protocols; outage probability;

   Abstract : With the fast development of today’s multimedia services, engineers face a huge hurdle that is, the overwhelming need of highly reliable communication over long distances. Cooperative communication is a novel concept which tackles this problem effectively. READ MORE

6. 15. Secure device to device communication

   University essay from KTH/Kommunikationsteori

   Author : Nathalie Sahlström; [2014]
   Keywords : ;

   Abstract : Since wireless communication has become a standard feature in the daily life, smartphones and tablets among other things are integrated with the Bluetooth technology. While in some parts of the day wireless communication can be used for searching the internet and share information on social networks without the need of having a secure connection, there are some other parts where the security might become of high importance. READ MORE