%0 Journal Article
%A TONG Yan-chun
%A YUAN Wen-fang
%A ZHANG Bo
%T Achievable Rate of Multi-user Gaussian Z Interference Channel
%D 2017
%R 10.13190/j.jbupt.2016-155
%J Journal of Beijing University of Posts and Telecommunications
%P 110-116
%V 40
%N 5
%X In order to further study the communication scheme of Han-Kobayashi (HK) on cascade Gaussian Z interference channel, a method of one inner bound and two outer bounds was proposed under weak and medium interference. In the scheme, as the transmitted information of both users split into common information and private information, a achieve rate <em>R</em><sub>HK</sub> is obtained by optimizing the ratio between common and private information. An inner bound is proposed by adding a constraint on this channel which is less than <em>R</em><sub>HK</sub>. Based on two genie-aided programs of two-user interference channel, two outer bounds were proposed by genie-aided which great than <em>R</em><sub>HK</sub>. By analyzing the distance between the inner bound and outer bounds, HK type scheme can be achieved within a single bit per second per hertz (bit&middot;s<sup>-1</sup>&middot;Hz<sup>-1</sup>) of the capacity under medium interference and approach to a single bit per second per hertz (bit&middot;s<sup>-1</sup>&middot;Hz<sup>-1</sup>) of the capacity under weak interference as total number increasing.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2016-155