Polar Codes for the Two-User Multiple-Access Channel
Polar Codes for the Two-User Multiple-Access Channel
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DOI：
10.1109/tit.2013.2268946
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发表时间：
2010-06
影响因子：
2.5
通讯作者：
Eren Sasoglu;E. Telatar;E. Yeh
中科院分区：
文献类型：
--
作者：
Eren Sasoglu;E. Telatar;E. Yeh
将Arikan的极坐标编码方法推广到两用户多址信道。结果表明，如果信道的两个用户使用Arikan的构造，所得到的信道将极化到五个可能的极值之一，在每个极值上未编码的传输都是最优的。这种编码技术所实现的总和速率是对应于均匀输入分布的速率。这些码的编解码复杂度和差错性能与单用户情况相同：O(Nlogn)用于编码和解码，O(2-n1/2-ε)用于块差错概率，其中n是块长度。
Arikan's polar coding method is extended to two-user multiple-access channels. It is shown that if the two users of the channel use Arikan's construction, the resulting channels will polarize to one of five possible extremals, on each of which uncoded transmission is optimal. The sum rate achieved by this coding technique is the one that corresponds to uniform input distributions. The encoding and decoding complexities and the error performance of these codes are as in the single-user case: O(nlogn) for encoding and decoding, and o(2-n1/2-ε) for the block error probability, where n is the blocklength.