Title :
On the degrees of freedom of X channel with delayed CSIT
Author :
Ghasemi, Akbar ; Motahari, Abolfazl Seyed ; Khandani, Amir Keyvan
Author_Institution :
Dept. of Electr. & & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada
fDate :
July 31 2011-Aug. 5 2011
Abstract :
We consider the X channel and the 3-user X network with independent and identically distributed fading across antennas and channel uses and with the delayed channel state information at the transmitters (CSIT). We provide new results for degrees of freedom of these channels. Specifically, we show that the single antenna X channel with delayed CSIT can achieve 6/5 degrees of freedom while the 3-user X network can achieve 5/4 degrees of freedom.
Keywords :
delays; transmitters; transmitting antennas; 3-user X network; channel state information; delayed CSIT; single antenna X channel; transmitters; Antenna theory; Equations; Interference; MIMO; Receivers; Transmitters;
Conference_Titel :
Information Theory Proceedings (ISIT), 2011 IEEE International Symposium on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4577-0596-0
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2011.6034238
