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Block differential encoding for rapidly fading channels

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3 Author(s)
Ma, Xiaoli ; Dept. of Electr. & Comput. Sci., Minnesota Univ., Minneapolis, MN, USA ; Bing Lu ; Giannakis, G.B.

We derive a novel block differential codec to bypass estimation of rapidly fading channels. Based on a basis expansion model for time-varying channels, our differential design is easy to implement, and achieves the maximum possible Doppler diversity. Combined with a group partitioning scheme, the differential scheme provides also flexibility to tradeoff decoding complexity with performance. Simulation results corroborate our theoretical analysis.

Published in:

Communications, 2003. ICC '03. IEEE International Conference on  (Volume:5 )

Date of Conference:

11-15 May 2003