A practical Walsh layering scheme for reliable transmission

Author

Chen, Jinhui ; Slock, Dirk T M

Author_Institution

Eurecom, Sophia Antipolis

fYear

2009

fDate

19-24 April 2009

Firstpage

2509

Lastpage

2512

Abstract

Concerning the uncertainty of channels and peak power constraint, we give a new practical layering scheme to do reliable transmission. In our scheme, Walsh matrix is employed to do layer-time coding. Regarding columns of a layer-time coding matrix as layers and rows as time, after Walsh layer-time coding, interference among layers can be removed or diminished by adding rows up. When there are layers decoded successfully after the previous transmission, only not-yet-decoded layers will be retransmitted. Simulation results show that our Walsh layering scheme with hybrid automatic repeat request (HARQ) performs much better than the traditional single-layer ARQ sequential transmission with respect to average time delay.

Keywords

automatic repeat request; encoding; reliability; hybrid automatic repeat request; interference; layer-time coding; multi-layer coding; practical Walsh layering; reliable transmission; sequential transmission; time delay; Automatic repeat request; Decoding; Delay effects; Gaussian channels; Interference cancellation; Interference constraints; Silicon carbide; Telecommunications; Transmitters; Uncertainty; Multi-layer coding; automatic repeat request;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on

Conference_Location

Taipei

ISSN

1520-6149

Print_ISBN

978-1-4244-2353-8

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2009.4960132

Filename

4960132