Very low rate convolution codes for maximum theoretical performance of spread-spectrum multiple-access channels

1 May 1990

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal on Selected Areas in Communications

Vol. 8 (4) , 641-649
https://doi.org/10.1109/49.54460

Abstract

A spread-spectrum multiple-access (SSMA) communication system is treated for which both spreading and error control is provided by binary PSK modulation with orthogonal convolution codes. Performance of spread-spectrum multiple access by a large number of users employing this type of coded modulation is determined in the presence of background Gaussian noise. With this approach and coordinated processing at a common receiver, it is shown that the aggregate data rate of all simultaneous users can approach the Shannon capacity of the Gaussian noise channel

Keywords

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