Andreas Müller Analysis and Optimization of Wireless Communication Systems with Regenerative Relaying ISBN: 978-3-8440-0477-9 Preis: 49,80 € / 99,60 SFR |
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A second instance of this paradigm that is discussed in the thesis, called cooperative diversity systems, is the situation where a destination device processes the signals from the source and the relay. This is presented as a particular implementation of MIMO systems. The first part of the thesis deals with relaying techniques in multihop systems. The author computes an analytical expression for the end-to-end bit and symbol error rates under different fading models and modulation schemes. It proposes an asymptotic analysis when the SNR ration is large that shows formally that the error rates sums in relaying multihop systems. The end-to-end expression for the error rates is also used to compare theoretically different power assignments and to proceed to asymptotic analysis. Moreover, the analysis of multihop relaying systems is concluded by considering adaptive modulation.The second part of the thesis is devoted to the analysis of cooperative diversity systems. Different mechanisms for selecting the transmitting channel (antenna) are discussed. Analytical expressions are provided for end-to-end performances that are subsequently used for the design of new systems. The thesis targets the readers that are interested in physical models of transmissions. Pierre Leone (Carouge) |
Relaying communication systems are an instance of the so-called cooperative communication paradigm, where the wireless devices that compose the network cooperate to handle data from the source to the destination. One incentive to this cooperation is to increase the spatial diversity, provided that the devices are located at different positions. In particular, in multihop systems, the relaying technique involves many wireless devices that receive and transmit (relay)
the same data.|
Quelle: Zentralblatt MATH 1243 | 1 | |
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