Cross Layer Considerations for an Adaptive OFDM-Based Wireless Communication System

Authors:
Hermann Rohling;Rainer Grünheid
Affiliations:
Department of Telecommunications, Technical University Hamburg-Harburg, Hamburg, Germany D-21073;Department of Telecommunications, Technical University Hamburg-Harburg, Hamburg, Germany D-21073
Venue:
Wireless Personal Communications: An International Journal
Year:
2005

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ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 1

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Abstract

Future applications require high, but variable data rates and different quality of services (QoS) which is a real challenge for the communication system design. Additionally, the broadband radio channel can be assumed to be frequency selective and time variant, which means the transmission performance varies over time and frequency. The OFDM transmission technique is very flexible in adapting the transmission parameters to the current channel situation and to the application-specific requirements. This kind of flexibility will be applied to solve the technical tasks in the design procedures of future communication systems.