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Optimal Power/Rate Allocation and Code Selection for Iterative Joint Detection of Coded Random CDMA

Schlegel, Christian; Shi, Zhenning; Burnashev, Marat


Iterative interference cancellation of coded code-division multiple access (CDMA) using random spreading with linear cancellation is analyzed. If users are grouped into power classes and Shannon bound approaching codes are used, a geometric power distribution achieves the additive white Gaussian noise (AWGN) channel Shannon bound as the numbers of classes becomes large. The optimal distribution of the size of these classes is shown to be uniform. If users are grouped into different rate classes...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: IEEE Transactions on Information Theory
DOI: 10.1109/TIT.2006.880015


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