Essays about: "Space time coding"

Showing result 11 - 15 of 30 essays containing the words Space time coding.

  1. 11. 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

  3. 12. Visualization of Traffic Information in Head-Mounted Displays for Helicopter Navigation

    University essay from KTH/Flygdynamik

    Author : Johannes Ernst; [2015]
    Keywords : ;

    Abstract : One of the major challenges for helicopter pilots are low level flights and landings in degraded visual environments (DVE). Without proper assistance systems, the pilots are prone to lose their situational awareness (SA) when fog, heavy precipitation, limited sunlight and stirred-up sand or snow degrades their view. READ MORE

  4. 13. Performance Analysis of 3-hop using DAF and DF over 2-hop Relaying Protocols

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Faisal Mehmood; Muneeb Ejaz; [2013]
    Keywords : Bit Error Rate; Cognitive Radio; Decode Amplify and Forward; Energy Detection; Probability of Detection; Rayleigh Fading; Relay Network;

    Abstract : In wireless Communication, the need of radio spectrum increases nowadays. But in the system we are losing approximately 82-86% of spectrum most of the time due to the absence of Primary User (PU). To overcome this issue Cognitive Radio (CR) is an admirable approach. READ MORE

  5. 14. A Study of the Next WLAN Standard IEEE 802.11ac Physical Layer

    University essay from KTH/Signalbehandling

    Author : Nader Al-Ghazu; [2013]
    Keywords : 802.11 ac; Wi-Fi; wifi; PHY; Matlab Simulation;

    Abstract : This thesis studies the Physical Layer (PHY) of the new IEEE 802.11acWireless Local Access Network (WLAN) standard. The 11ac is built basedon the 11n successful standard. The standard is expected to be completedby the end of 2013. READ MORE

  6. 15. Transcoding H.265/HEVC

    University essay from Blekinge Tekniska Högskola/Sektionen för datavetenskap och kommunikation

    Author : Sina Tamanna; [2013]
    Keywords : Transcoding; Transrating; High Efficiency Video Coding; HEVC H.265; Tree Sub-space Search;

    Abstract : Video transcoding is the process of converting compressed video signals to adapt video characteristics such as video bit rate, video resolution, or video codec, so as to meet the specifications of communication channels and endpoint devices. A straightforward transcoding solution is to fully decode and encode the video. READ MORE