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Mobile - Wireless Communications White Papers

Cross-Layer Optimization of OFDM Systems for 4G Wireless Communications

Overview This paper advocates cross-layer optimization over the whole ISO/OSI protocol stack. As an example this paper refers to a system using multiple description coding at application layer combined with orthogonal frequency division multiplexing at the link level to provide robustness against hostile wireless channels. In the proposed optimization design negotiation between application, data link control and physical layer is exploited to increase user quality of service in terms of picture signal to noise ratio and bandwidth efficiency. By means of channel simulation and coding measurements it is shown that this kind of cross layer optimization lead to the best results.

Further White Paper Details
Publisher	Aalborg University	File Format	PDF, requires Acrobat Rdr 5
Date Published	August 2004	Downloads	85
Format	White Papers
Topics	Mobile - Wireless Communications, Modems

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