通信学报 ›› 2013, Vol. 34 ›› Issue (6): 114-121.doi: 10.3969/j.issn.1000-436X.2013.06.014

• 学术论文 • 上一篇    下一篇

对称循环高斯干扰信道下的速率分裂方案及其可达和速率

张博1,2,李勇1,3,白宝明1,马啸4   

  1. 1 西安电子科技大学 ISN国家重点实验室,陕西 西安 710071
    2 96401部队,陕西 宝鸡 721000
    3 山西大同大学 教育科学与技术学院,山西 大同 037009
    4 中山大学 信息科学与技术学院,广东 广州 510275
  • 出版日期:2013-06-25 发布日期:2017-07-20
  • 基金资助:
    国家重点基础研究发展计划(“973”计划)基金资助项目;国家自然科学基金资助项目;国家科技重大专项基金资助项目;通信网信息传输与分发技术重点实验室开放课题基金资助项目

Rate-splitting scheme and its achievable sum-rate for the symmetric cyclic Gaussian interference channel

Bo ZHANG1,2,Yong LI1,3,Bao-ming BAI1,Xiao MA4   

  1. 1 State Key Lab. of ISN, Xidian University, Xi'an 710071, China
    2 No. 96401 Troop, Baoji 721000, China
    3 College of Education Science & Technology, Shanxi Datong University, Datong 037009, China
    4 School of Information Science & Technology, Sun Yat-sen University, Guangzhou 510275, China
  • Online:2013-06-25 Published:2017-07-20
  • Supported by:
    The National Basic Research Program of China (973 Program);The National Natural Science Foundation of China;The National S&T Major Project of China;The Foundation of the Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory

摘要:

通过分析Han-Kobayashi (HK)策略在N用户对称循环高斯干扰信道中的应用,提出了一种自适应奇偶对称速率分裂方案。该方案针对不同的信道条件设计出相应的速率分裂方案及最优分裂系数,在简化了计算复杂度的同时,使系统和速率趋近HK和速率内界。最后,分别在高信噪比和一般信噪比环境下进行仿真发现,自适应奇偶对称速率分裂方案的和速率在很大范围内明显大于对称速率分裂方案和Tse等人提出的速率分裂方案的和速率,且在一般信噪比下能够逼近HK和速率内界。

关键词: 对称循环高斯干扰信道, HK策略, 可达和速率, 速率分裂

Abstract:

By analyzing the performance of Han-Kobayashi (HK) strategy in the N-user cyclic Gaussian symmetric in-terference channel, an adaptive odd-even symmetric rate-splitting scheme was proposed to reduce the complexity and in-crease the sum-rate to the inner bound of HK, which contains various schemes based on rate-splitting and optimal split ratio. Numerical simulation results of symmetric scheme in the high SNR and the general SNR regimes indicate that, in wide range of transmitted power and interference factor, the sum-rate achieved using adaptive rate-splitting scheme is higher than that achieved using the scheme proposed by Tse et al., and approaches the inner bound of HK scheme in the general SNR regimes.

Key words: symmetric cyclic Gaussian interference channel, HK scheme, achievable sum-rate, rate-splitting

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