A Novel Bi-directional Relaying Scheme with Low Complexity
Feng Hu, Hua Zhang, Xiaohu You · IEICE Transactions on Communications · 2010
In this paper we investigate a low complexity channel estimation and data transmission scheme for bi-directional relaying networks. We also propose a semi-orthogonal pilot structure for channel estimation to increase the efficiency of data transmission between the Base Station (BS) and Mobile Station (MS) via a fixed Relay Node (RN).