Title :
Interference alignment design for two-cell MIMO uplink systems with limited feedback
Author :
Di Fang ; Tiejun, L.V.
Author_Institution :
Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Many studies have combined interference alignment (IA) with limited feedback in cellular systems. The limited feedback will produce residual inter-cell interference (ICI), which causes system throughput loss. Some IA scheme has been proposed to mitigate the residual ICI. However, the residual ICI with the existing scheme is still significant. In this paper, we propose an IA scheme for two-cell multiple-input multiple-output (MIMO) uplink systems with limited feedback to mitigate the residual ICI more effectively. In the proposed scheme we design the receiver according to the estimated ICI. The proposed scheme minimizes the residual ICI, thus improving the performance of system throughput. Simulations also verify its effectiveness.
Keywords :
MIMO communication; adjacent channel interference; IA scheme; combined IA; combined interference alignment; interference alignment design; limited feedback; residual ICI mitigation; two-cell MIMO uplink systems; two-cell multiple-input multiple-output uplink systems; Eigenvalues and eigenfunctions; Interference; MIMO; Signal to noise ratio; Throughput; Uplink; Vectors;
Conference_Titel :
Wireless Personal Multimedia Communications (WPMC), 2013 16th International Symposium on
Conference_Location :
Atlantic City, NJ