Interference Suppression for MIMO Device to Device Pairs Underlaying Cellular Network  

作　　者：王欢 李莉 王斌 王发展 

机构地区：[1]College of Information,Mechanical and Electrical Engineering,Shanghai Normal University,Shanghai 200234,China

出　　处：《Journal of Donghua University(English Edition)》2017年第5期661-665,共5页东华大学学报（英文版）

基　　金：National Natural Science Foundation of China(No.61503251)

摘　　要：Device to device(D2D) communications may generate interference to the existing cellular networks.An interference suppression(IS) scheme is proposed in this paper.With this scheme,the threshold of D2D-pairs(D2D-Ps) communication was designed to reject the D2D-Ps which were not satisfied the threshold constraint,ensuring that the cellular users(CUs) had priority to use the spectrum resources.Then the interference from D2D-Ps at the receiver of CUs was eliminated first by precoding at the D2D transmitter and decoding at the CU's receiver.Next,the interference between D2D-Ps was suppressed by using interference alignment(IA).Performance analysis shows that the priority of CUs using the spectrum resources has been guaranteed;the interference generated on the cellular links is well eliminated;the interference between D2D-Ps can also be suppressed.Device to device（D2D） communications may generate interference to the existing cellular networks.An interference suppression（IS） scheme is proposed in this paper.With this scheme,the threshold of D2D-pairs（D2D-Ps） communication was designed to reject the D2D-Ps which were not satisfied the threshold constraint,ensuring that the cellular users（CUs） had priority to use the spectrum resources.Then the interference from D2D-Ps at the receiver of CUs was eliminated first by precoding at the D2D transmitter and decoding at the CU＇s receiver.Next,the interference between D2D-Ps was suppressed by using interference alignment（IA）.Performance analysis shows that the priority of CUs using the spectrum resources has been guaranteed;the interference generated on the cellular links is well eliminated;the interference between D2D-Ps can also be suppressed.

关 键 词：device to device(D2D) communications interference alignment(IA) PRECODING DECODING 

分 类 号：TN929.5[电子电信—通信与信息系统]