Approved
Characterization of Time-Varying Fading Statistics from Indoor-to-Indoor Distributed Channel Measurements
MIngming Gan (wx08mg1)
Start
2010-03-01
Presentation
2010-09-29 09:15
Location:
E:2311
Finished:
2010-10-06
Master's thesis:
(Contact supervisor)
Abstract
Cooperative communication is a promising technology to increase coverage, reliability and spectral efficiency in next generation wireless networks. The basic idea is to allow nodes to “help” other nodes with their communication by exploiting the broadcast nature of the wireless channel. This approach can for example be used to establish collaboratively a reliable wireless link between a set of indoor nodes to a base station not necessarily in reach of the individual nodes, e.g. some nodes can be used as relays to the base station. In such networks, especially when the distributed multi-link channel is non-homogeneous, the selection of the best relay can even provide better performance compared to existing distributed space-time codes. The "best" relay is defined as the delays having the best channels to both the base station and the other nodes. For simulations of such systems it is paramount to have a good simulation model of the quality of the links between the nodes themselves and between the nodes and the base station. Particularly, correlated shadowing has a significant severe impact on the link quality. The task of this master thesis project is to evaluate the data from a measurement campaign recently conducted using a high-end channel sounder, and to derive a realistic mathematical shadow fading model from them.
Supervisor: Nicolai Czink (FTW) and Paolo Castiglione (FTW)
Examiner: Fredrik Tufvesson (EIT)