Computer Science – Information Theory
Scientific paper
2011-05-02
Computer Science
Information Theory
submitted to the IEEE Transactions on Information Theory
Scientific paper
We derive the capacity region of arbitrarily varying multiple-access channels with conferencing encoders for both deterministic and random coding. We obtain a dichotomy: either the channel's deterministic capacity region is zero or it equals the two-dimensional random coding region. We determine exactly when either case holds. We also discuss the benefits of conferencing. For both the compound and the arbitrarily varying cases, we give the example of a channel which does not achieve any non-zero rate pair without encoder cooperation, but the two-dimensional random coding capacity region if conferencing is possible. Unlike compound multiple-access channels, arbitrarily varying multiple-access channels may exhibit a discontinuous increase of the capacity region when conferencing is enabled. We use the arbitrarily varying multiple-access channel with conferencing encoders for an information-theoretic analysis of the performance of wireless networks with cooperating base stations disturbed by exterior interference.
Boche Holger
Wiese Moritz
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