J4 ›› 2016, Vol. 43 ›› Issue (1): 71-74+150.doi: 10.3969/j.issn.1001-2400.2016.01.013

• 研究论文 • 上一篇    下一篇

高斯X信道在噪声干扰下的和容量

李静;葛建华   

  1. (西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安  710071)
  • 收稿日期:2014-08-21 出版日期:2016-02-20 发布日期:2016-04-06
  • 通讯作者: 李静
  • 作者简介:李静(1987-),女,西安电子科技大学博士研究生,E-mail: jli_8713@hotmail.com.
  • 基金资助:

    国家重点基础研究发展计划资助项目(2012CB316100);国家高技术研究发展计划("863"计划)资助项目(2014AA01A704);“111”计划资助项目(B08038);中国国家留学基金管理委员会(CSC)资助项目

Sum capacity of Gaussian X channels with noisy interference

LI Jing;GE Jianhua   

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China)
  • Received:2014-08-21 Online:2016-02-20 Published:2016-04-06
  • Contact: LI Jing

摘要:

通过分析高斯X信道的和容量,得到了该信道处于噪声干扰下的充分条件.将辅助向量和辅助集合作为边信息提供给接收端,得到了一个和速率上界.在所提出的噪声干扰条件下,该和速率上界可通过将X信道退化成潜在的干扰信道,并把干扰当作噪声处理的方法达到,从而得到了该信道在噪声干扰下的和容量.

关键词: X信道, 和容量, 噪声干扰

Abstract:

If the sum capacity of a channel can be achieved by treating interference as noise, we say that this channel is under noisy interference. By analyzing the sum capacity of Gaussian X channels, sufficient conditions for such channels under noisy interference are proposed. Providing vector genies and auxiliary sets as side information to the receivers, a sum-rate upper bound is obtained. Under the noisy interference sufficient conditions, this sum-rate upper bound can be achieved by operating the original channel as the underlying Gaussian interference channel and treating interference as noise. Therefore, the sum capacity of the Gaussian X channel is determined for noisy interference.

Key words: X channel, sum capacity, noisy interference

Baidu
map