论文标题
具有直接链接的MIMO传递广播频道的有效线性传输策略
Efficient Linear Transmission Strategy for MIMO Relaying Broadcast Channels with Direct Links
论文作者
论文摘要
In this letter, a novel linear transmission strategy to design the linear precoding matrix~(PM) at base station~(BS) and the beamforming matrix~(BM) at relay station~(RS) for multiple-input multiple-output~(MIMO) relaying broadcast channels with direct channel (DC) is proposed, in which a linear PM is designed at BS based on DC, and the RS utilizes the PM, the backward channel and the正向通道设计线性BM。然后，我们通过衡量性能的策略给出了网络可实现的总和的紧密下限。将提出策略实现的总和比将模拟中的DC进行比较，这表明，当RS接近BS时，所提出的策略优于现有方法。
In this letter, a novel linear transmission strategy to design the linear precoding matrix~(PM) at base station~(BS) and the beamforming matrix~(BM) at relay station~(RS) for multiple-input multiple-output~(MIMO) relaying broadcast channels with direct channel (DC) is proposed, in which a linear PM is designed at BS based on DC, and the RS utilizes the PM, the backward channel and the forward channel to design the linear BM. We then give a quite tight lower bound of the achievable sum-rate of the network with the proposed strategy to measure the performance. The sum-rates achieved by the proposed strategy is compared with other schemes without considering the DC in design in simulations, which shows that the proposed strategy outperforms the existing methods when RS is close to BS.
