Information and multiaccess interference in a complexity-constrained vector channel

Details Information and multiaccess interference in a complexity-constrained vector channel Information and multiaccess interference in a complexity-constrained vector channel

2006-04-19

arxiv.org/abs/cs/0604074v3

Computer Science

Information Theory

The author has withdrawn this submission [arXiv admin]

Scientific paper

10.1088/1751-8113/40/20/002

Rodrigo de Miguel et al 2007 J. Phys. A: Math. Theor. 40 5241-5260: A noisy vector channel operating under a strict complexity constraint at the receiver is introduced. According to this constraint, detected bits, obtained by performing hard decisions directly on the channel's matched filter output, must be the same as the transmitted binary inputs. An asymptotic analysis is carried out using mathematical tools imported from the study of neural networks, and it is shown that, under a bounded noise assumption, such complexity-constrained channel exhibits a non-trivial Shannon-theoretic capacity. It is found that performance relies on rigorous interference-based multiuser cooperation at the transmitter and that this cooperation is best served when all transmitters use the same amplitude.

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