Essays about: "orthogonal space time block codes"
Found 5 essays containing the words orthogonal space time block codes.
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1. Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays
University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandlingAbstract : 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
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2. Robust MIMO Precoding on Real-World Measured Channels
University essay from KTH/SignalbehandlingAbstract : It is well known that multi-input multi-output (MIMO) wireless communication systemsthat employ precoding techniques are capable of meeting the high expectations of modernand future wireless communication standards. In order to fully utilize these techniques, thecommunication system typically requires information of the channel, commonly referred toas channel state information (CSI). READ MORE
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3. Performance Analysis of Decode and Forward Relaying with Keyhole in Nakagami-m Fading Channels
University essay from Blekinge Tekniska Högskola/Institutionen för datalogi och datorsystemteknikAbstract : Fading has always been a major obstacle in the effective transmission of signals from the transmit antenna to the receive antenna. The innovation of multiple-input multiple-output (MIMO) system has led to the regression of the adverse effect of these fading entities and thus provided a higher data rate communication while maintaining the quality of service (QoS). READ MORE
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4. Spectrum Sensing of Cognitive Radio Networks using Amplify and Forward Relay over Correlated Nakagami-m Fading Channel
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : 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. READ MORE
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5. Performance Analysis of DF Relay Systems with Keyhole and Correlation Effects
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : In recent years, the innovation of multiple-input multiple-output (MIMO) has completely changed the face of wireless communication system. Especially, the concept of MIMO is evolved to fulfill the demand of multimedia services. READ MORE