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arXiv 0910.5950cs.ITmath.IT
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MIMO联合信源信道编码的鲁棒性极限

Limits on the Robustness of MIMO Joint Source-Channel Codes

Mahmoud Taherzadeh, H. Vincent Poor

摘要:

本文研究了MIMO联合信源信道编码鲁棒性的理论极限。在这种情况下,一个单一的联合源信道代码被用于整个范围内的SNR和所需的保真度的所有级别被认为是。这样一个系统的渐近性能的限制,其特征在于上界的多样性保真度的权衡,这可以被看作是一个模拟版本的多样性复用的权衡。特别是,它表明,有一个相当大的差距之间的多样性保真度权衡的鲁棒联合信源信道码和最佳的权衡(没有鲁棒性的约束)。

英文摘要:

In this paper, the theoretical limits on the robustness of MIMO joint source channel codes is investigated. The case in which a single joint source channel code is used for the entire range of SNRs and for all levels of required fidelity is considered. Limits on the asymptotic performance of such a system are characterized in terms of upper bounds on the diversity-fidelity tradeoff, which can be viewed as an analog version of the diversity-multiplexing tradeoff. In particular, it is shown that there is a considerable gap between the diversity-fidelity tradeoff of robust joint source-channel codes and the optimum tradeoff (without the constraint of robustness).

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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