Sökning: "Adaptive power allocation"
Visar resultat 1 - 5 av 18 avhandlingar innehållade orden Adaptive power allocation.
1. Optimal adaptive designs and adaptive randomization techniques for clinical trials
Sammanfattning : In this Ph.D. thesis, we investigate how to optimize the design of clinical trials by constructing optimal adaptive designs, and how to implement the design by adaptive randomization. LÄS MER
2. Adaptive MIMO Systems with Channel State Information at Transmitter
Sammanfattning : This dissertation presents adaptation techniques that can achieve high spectral efficiency for single user multiple-input multiple-output (MIMO) systems. Two types of adaptation techniques, adaptive modulation and adaptive powe allocation, are employed to adapt the rate and the transmit power to fading channels. LÄS MER
3. Adaptation in multiple input multiple output systems with channel state information at transmitter
Sammanfattning : This thesis comprises two parts: the first part presents channel-adaptive techniques to achieve high spectral efficiency in a single user multiple-input multiple-output (MIMO) system; the second part exhibits a programmable and reconfigurable software-defined-radio orkbench(SDR-WB) in the Matlab/Octave environment that accommodates a variety of wireless applications. In an attempt to achieve high spectral efficiency, an adaptive modulation technique is applied at the transmitter to vary the data rate depending on the channel state information (CSI). LÄS MER
4. Cooperative Communications : Link Reliability and Power Efficiency
Sammanfattning : Demand for high data rates is increasing rapidly for the future wireless generations, due to the requirement ofubiquitous coverage for wireless broadband services. More base stations are needed to deliver these services, in order tocope with the increased capacity demand and inherent unreliable nature of wireless medium. LÄS MER
5. Power control and adaptive resource allocation in DS-CDMA systems
Sammanfattning : .... LÄS MER