Sökning: "orthogonal space-time codes OSTBCs"

Hittade 2 uppsatser innehållade orden orthogonal space-time codes OSTBCs.

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

   Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

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

   Sammanfattning : 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. LÄS MER

3. 2. Spectrum Sensing of Cognitive Radio Networks using Amplify and Forward Relay over Correlated Nakagami-m Fading Channel

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Suman Dongol Maharjan; [2011]
   Nyckelord :Amplify-and-forward AF ; orthogonal space-time codes OSTBCs ; correlated Nakagami-m fading; detection probability; cognitive radio.;

   Sammanfattning : In the last ten years, we have been witnessing the vast growth in wireless communications due to the popularity of many wireless devices, mobiles, smart phones etc. As a result, the demand for high data rates, bandwidth, and spectrum utilization has increased. LÄS MER