Title :
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
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;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478613
