Title :
Precoder design for the interference relay channel with blind transmitters
Author :
Anand, Kushal ; Yetis, Cenk M. ; Gunawan, Erry ; Yong Liang Guan
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, for the K-user interference relay channel (IRC) with transmitters and relays having no and global channel state information (CSI), respectively, a minimum sum mean squared error (MSMSE) based relay precoder is proposed. It is shown that MSMSE outperforms interference alignment (IA) relay precoder in sum rate at low to mid signal-to-noise ratio (SNR) regions as well as in bit error rate (BER) at all SNR regions for small and moderate sizes of Gray encoded constellations.
Keywords :
Gray codes; channel coding; error statistics; interference (signal); least mean squares methods; precoding; radio transmitters; Gray encoded constellations; K-user interference relay channel; MSMSE; bit error rate; blind transmitters; channel state information; interference alignment; minimum sum mean squared error; precoder design; relay precoder; Bit error rate; Interference; MIMO; Receivers; Relays; Signal to noise ratio; Transmitters; Interference Relay channels; SISO; degrees of freedom; interference alignment;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2014 IEEE
Conference_Location :
Istanbul
DOI :
10.1109/WCNC.2014.6952170
