Generalized Degrees of Freedom of the Symmetric K-user Interference Channel with Feedback

被引：0
|
作者：
Mohajer, Soheil [1 ]
Tandon, Ravi [1 ]
Poor, H. Vincent [1 ]
机构：
[1] Univ Calif Berkeley, Berkeley, CA 94720 USA
来源：
2012 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT) | 2012年
关键词：
CAPACITY;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
The symmetric K user interference channel with fully connected topology is considered, in which (a) each receiver suffers interference from all other K - 1 transmitters, and (b) each transmitter has causal and noiseless feedback from its respective receiver. The number of generalized degrees of freedom (GDoF) is characterized in terms of alpha, where the interference-to-noise ratio (INR) is given by INR = SNR alpha. It is shown that the number of per-user GDoF of this network is the same as that of the 2-user interference channel with feedback, except for alpha - 1, for which existence of feedback does not help in terms of GDoF. The coding scheme proposed for this network, termed cooperative interference alignment, is based on two key ingredients, namely, interference alignment and interference decoding.
引用
收藏
页数：5
相关论文
共 50 条
  • [41] Generalized Degrees of Freedom Region for MIMO Interference Channel with Feedback
    Ashraphijuo, Mehdi
    Aggarwal, Vaneet
    Wang, Xiaodong
    [J]. 2013 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT), 2013, : 1779 - +
  • [42] On the Degrees of Freedom of the K-User Time Correlated Broadcast Channel with Delayed CSIT
    de Kerret, Paul
    Yi, Xinping
    Gesbert, David
    [J]. 2013 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT), 2013, : 624 - 628
  • [43] Interference alignment and spatial degrees of freedom for the K user interference channel
    Cadambe, Viveck R.
    Jafar, Syed A.
    [J]. 2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13, 2008, : 971 - 975
  • [44] On Secure Degrees of Freedom for K-User MISO Broadcast Channel With Alternating CSIT
    Sadighi, Leyla
    Salehkalaibar, Sadaf
    Rini, Stefano
    [J]. 2020 IEEE INFORMATION THEORY WORKSHOP (ITW), 2021,
  • [45] Interference Alignment With Quantized Grassmannian Feedback in the K-User Constant MIMO Interference Channel
    Rezaee, Mohsen
    Guillaud, Maxime
    [J]. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2016, 15 (02) : 1456 - 1468
  • [46] Interference Alignment for the K-User MIMO Interference Channel
    Ghasemi, Akbar
    Motahari, Abolfazl Seyed
    Khandani, Amir Keyvan
    [J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2022, 68 (03) : 1401 - 1411
  • [47] The K-User Interference Channel: Strong Interference Regime
    Farsani, Reza K.
    [J]. 2013 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT), 2013, : 2029 - 2033
  • [48] Degrees of freedom for K user MIMO interference channel with No CSIT
    Ren, Haiying
    Liu, Yuanan
    Liu, Fang
    Gao, Jinchun
    Liu, Kaiming
    Xie, Gang
    [J]. Journal of Computational Information Systems, 2015, 11 (05): : 1683 - 1692
  • [49] Achievable Degrees of Freedom on K-user Y Channels
    Lee, Kwangwon
    Lee, Namyoon
    Lee, Inkyu
    [J]. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 2012, 11 (03) : 1210 - 1219
  • [50] Inner Bound on the GDOF of the K-User MIMO Gaussian Symmetric Interference Channel
    Mohapatra, Parthajit
    Murthy, Chandra R.
    [J]. IEEE TRANSACTIONS ON COMMUNICATIONS, 2013, 61 (01) : 187 - 196
12345