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Lattice coding for multiple access channels with common message and additive interference

機(jī)譯：具有公共消息和附加干擾的多個(gè)接入信道的格形編碼

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摘要

In this paper, lattice based coding is used over two-user Gaussian state-dependent multiple access channel with common message for two channel models. First, it is assumed that the additive channel interference is noncausally known at both encoders. Exploiting a lattice encoding and decoding scheme, the effect of the interference is completely removed and the capacity region is achieved. Then, the multiple access channel with two additive interferences is considered in the case, where each interference is known noncausally to the associated transmitter. A pure lattice based encoding and decoding structure is proposed and an inner bound on the capacity region is derived which is valid for the entire range of channel signal to noise ratio and powers of interferences.
機(jī)譯：在本文中，基于格的編碼用于具有兩個(gè)消息的公共消息的兩用戶高斯?fàn)顟B(tài)相關(guān)多址通道。首先，假定在兩個(gè)編碼器上都無(wú)因地知道附加信道干擾。利用晶格編碼和解碼方案，完全消除了干擾的影響，并實(shí)現(xiàn)了容量區(qū)域。然后，在這種情況下考慮具有兩個(gè)附加干擾的多路訪問(wèn)信道，在這種情況下，每個(gè)干擾對(duì)于相關(guān)的發(fā)射機(jī)來(lái)說(shuō)都是非因果的。提出了一種基于純晶格的編碼和解碼結(jié)構(gòu)，并推導(dǎo)了容量區(qū)域的內(nèi)邊界，該邊界對(duì)整個(gè)信道信噪比和干擾功率有效。

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