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Abstract: We characterize stability regions of two-user fading Gaussian multiple accessMAC and broadcast BC networks with centralized scheduling. The data to betransmitted to the users is encoded into codewords of fixed length. The ratesof the codewords used are restricted to a fixed set of finite cardinality. Withsuccessive decoding and interference cancellation at the receivers, we find theset of arrival rates that can be stabilized over the MAC and BC networks. InMAC and BC networks with average power constraints, we observe that the dualityproperty that relates the MAC and BC information theoretic capacity regionsextend to their stability regions as well. In MAC and BC networks with peakpower constraints, the union of stability regions of dual MAC networks is foundto be strictly contained in the BC stability region.



Autor: Viveck R. Cadambe, Syed A. Jafar

Fuente: https://arxiv.org/







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