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arXiv 0803.3645cs.ITmath.IT
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多址信道最大差错指数的一个新的球形填充界

A New Sphere-Packing Bound for Maximal Error Exponent for Multiple-Access Channels

Ali Nazari, Sandeep Pradhan, Achilleas Anastasopoulos

摘要:

在这项工作中,一个新的下界的最大错误概率的两个用户离散无记忆(DM)多址信道(MAC)的推导。这是这种类型的第一个界限,它明确地规定了用户输入分布的独立性(以分时辅助变量为条件),因此与Haroutunian推导出的最紧的已知指数相比,它会导致更紧的球填充指数。

英文摘要:

In this work, a new lower bound for the maximal error probability of a two-user discrete memoryless (DM) multiple-access channel (MAC) is derived. This is the first bound of this type that explicitly imposes independence of the users' input distributions (conditioned on the time-sharing auxiliary variable) and thus results in a tighter sphere-packing exponent when compared to the tightest known exponent derived by Haroutunian.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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