On the Degrees of Freedom Region of General MIMO Broadcast Channel with Mixed CSIT

被引：0

作者：

Yang, Bo ^{[1
]}

Wang, Desheng ^{[1
]}

Sun, Jun ^{[1
]}

Liu, Yingzhuang ^{[1
]}

机构：

[1] HUST, Dept Elect & Informat Engn, Wuhan, Peoples R China

来源：

2013 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY PROCEEDINGS (ISIT) | 2013年

关键词：

Broadcast Channel; DoF Region; Mixed CSIT; MIMO; STATE INFORMATION;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The two-user multiple-input multiple-output (MIMO) Gaussian Broadcast Channel (BC) with mixed CSIT (i.e., delayed CSIT plus estimated current CSIT) under general antenna configuration is considered in this paper. Unlike the MISO scenario, obtaining tight characterization of the Degrees of Freedom (DoF) region seems difficult for the general MIMO BC settings. Despite that, the inner bound we provide in this paper is believed to be the best achievable bound so far. One novel ingredient of our scheme is the rate-splitting of the interference-encoded symbols, which provides the possible benefit of DoF gain by accommodating the transmission to the asymmetric receivers. Moreover, the outer bound of DoF region is also presented, which coincides our proposed inner bound in some cases.

引用

页码：937 / 941

页数：5

共 8 条

[1] Optimal Use of Current and Outdated Channel State Information: Degrees of Freedom of the MISO BC with Mixed CSIT [J].

Gou, Tiangao ;

Jafar, Syed A. .

IEEE COMMUNICATIONS LETTERS, 2012, 16 (07) :1084-1087

[2] On Degrees of Freedom Region of MIMO Networks Without Channel State Information at Transmitters [J].

Huang, Chiachi ;

Jafar, Syed Ali ;

Shamai, Shlomo ;

Vishwanath, Sriram .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2012, 58 (02) :849-857

[3] An extremal inequality motivated by multiterminal information-theoretic problems [J].

Liu, Tie ;

Viswanath, Pramod .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2007, 53 (05) :1839-1851

[4] Completely Stale Transmitter Channel State Information is Still Very Useful [J].

Maddah-Ali, Mohammad Ali ;

Tse, David .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2012, 58 (07) :4418-4431

[5]

Vaze CS, 2011, IEEE INT SYMP INFO, P199, DOI 10.1109/ISIT.2011.6033903

[6] The capacity region of the Gaussian multiple-input multiple-output broadcast channel [J].

Weingarten, Hanan ;

Steinberg, Yossef ;

Shamai, Shlomo .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (09) :3936-3964

[7] Degrees of Freedom of Time Correlated MISO Broadcast Channel With Delayed CSIT [J].

Yang, Sheng ;

Kobayashi, Mari ;

Gesbert, David ;

Yi, Xinping .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2013, 59 (01) :315-328

[8]

Yi X., 2012, ARXIV12113322

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