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Further Reading:
Sergio Verdu, "Capacity Region of Gaussian
CDMA Channels: The Symbol-Synchronous Case", Proceedings of the
24th Allerton Conference on communication, Control and Computing,
1989.
Pramod Viswanath and
Venkat Anantharam, "Optimal Sequences and Sum Capacity of
Synchronous CDMA Systems", IEEE Transactions on Information Theory,
volume 48, number 6, pages 1295-1318, June
2002.
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Optimal Signature Sets for Transmission
of Correlated Data over a Multiple Access Channel
Joydeep Acharya,
Ritabrata Roy,
Jasvinder Singh,
Christopher Rose
This paper has been submitted for consideration to the IEEE
Globecom General Conference 2004.
Abstract
For multiple transmitters sending independent
data to a single receiver, the problem of optimizing transmitter codewords to
maximize capacity has already been addressed. This paper considers an analogous
scenario when the information sent by the transmitters is correlated. The
optimal codeword set and power allocation which minimizes TMSE (total mean
square error) at the receiver under a total power constraint have been derived.
the equivalence between TMSE and sum capacity is also shown, in the sense that
minimizing the former corresponds to maximizing the latter.
The
complete text of the Draft may be accessed here (4 pages, 140 KB).
(Requires Adobe Reader)
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