Performance of Iterative Interference Alignment with Imperfect CSI

Author

Qing Li ; Shan Jin ; Guangrong Yue ; Shaoqian Li

Author_Institution

Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

21-23 Sept. 2012

Firstpage

1

Lastpage

4

Abstract

Recent results find numerical scheme for interference alignment (IA) to approach the Shannon capacity in interference network. Requiring global perfect channel knowledge is an important concern for interference alignment schemes. Consider error channel estimate and perfect channel information, and use different system model expression, we show that the distribution of SNR both are exponential distribution and find the limit of the interference alignment under error channel estimate .

Keywords

channel estimation; exponential distribution; interference suppression; iterative methods; SNR distribution; Shannon capacity; error channel estimation; exponential distribution; global perfect channel knowledge; imperfect CSI; interference network; iterative interference alignment scheme; perfect channel information; system model expression; Channel estimation; Interference; MIMO; Receivers; Signal to noise ratio; Transmitters; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on

Conference_Location

Shanghai

ISSN

2161-9646

Print_ISBN

978-1-61284-684-2

Type

conf

DOI

10.1109/WiCOM.2012.6478613

Filename

6478613