Net Degrees of Freedom of Decomposition Schemes for the MIMO IC with Delayed CSIT

被引：0
作者：
Lejosne, Yohan [1 ]
Slock, Dirk [1 ]
Yi Yuan-Wu
机构：
[1] EURECOM, Mobile Commun Dept, F-06410 Biot Sophia Antipolis, France
来源：
2014 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT) | 2014年
关键词：
INTERFERENCE CHANNEL; BROADCAST CHANNEL;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Most techniques designed for the multiple-input multiple-output (MIMO) Interference Channel (IC) require accurate current channel state information at the transmitter (CSIT) which is not a realistic assumption because of feedback delay. We evaluate the net degrees of freedom (DoF) that different schemes can be expected to reach in a realistic system by taking into account the time and the cost of CSIT acquisition (training and feedback). A recent variant of ergodic interference alignment (IA) clearly outperforms the other schemes as its robustness to feedback delays proves to be advantageous in terms of net DoF.
引用
收藏
页码：1742 / 1746
页数：5
相关论文
共 26 条
  • [1] Abdoli M. J., 2011, IEEE T INF UNPUB SEP
  • [2] [Anonymous], CORR
  • [3] Interference alignment and degrees of freedom of the K-user interference channel
    Cadambe, Viveck R.
    Jafar, Syed Ali
    [J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2008, 54 (08) : 3425 - 3441
  • [4] On the achievable throughput of a multiantenna Gaussian broadcast channel
    Caire, G
    Shamai, S
    [J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2003, 49 (07) : 1691 - 1706
  • [5] Chen J., 2013, P ISIT
  • [6] Geng C., 2012, P GLOBECOM AN CA US
  • [7] Multi-Cell MIMO Cooperative Networks: A New Look at Interference
    Gesbert, David
    Hanly, Stephen
    Huang, Howard
    Shitz, Shlomo Shamai
    Simeone, Osvaldo
    Yu, Wei
    [J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2010, 28 (09) : 1380 - 1408
  • [8] Optimal Use of Current and Outdated Channel State Information: Degrees of Freedom of the MISO BC with Mixed CSIT
    Gou, Tiangao
    Jafar, Syed A.
    [J]. IEEE COMMUNICATIONS LETTERS, 2012, 16 (07) : 1084 - 1087
  • [9] Degrees of Freedom of the K User M x N MIMO Interference Channel
    Gou, Tiangao
    Jafar, Syed A.
    [J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 2010, 56 (12) : 6040 - 6057
  • [10] Kang M.G., 2013, IEEE SIGNAL PROCESS
123