Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2007-08-02
Physics
Condensed Matter
Statistical Mechanics
8 pages, 8 figures
Scientific paper
The typical behaviour of the relay-without-delay channel and its many-units generalisation, termed the relay array, under LDPC coding, is studied using methods of statistical mechanics. A demodulate-and-forward strategy is analytically solved using the replica symmetric ansatz which is exact in the studied system at the Nishimori's temperature. In particular, the typical level of improvement in communication performance by relaying messages is shown in the case of small and large number of relay units.
Alamino Roberto C.
Saad David
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