共被期刊论文引用了3次
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| 1 | 一种基于QoS的自适应混合协同传输方法及性能分析显示文摘理想的混合协同传输系统中,所有的中继节点都参与译码,将带来计算复杂度的提高、节点资源消耗的增加以及信息传输时延的增大。针对多节点的协同无线传输网络,提出了一种基于服务质量(Quality of Service,QoS)的自适应混合协同传输方法,并进行了性能分析,给出了系统误码率(Symbol Error Rate,SER)及中断概率的闭合表达式。该方法根据目的节点的QoS需求以及中继节点的信噪比(SNR)门限,动态地调整中继节点的传输模式,能够减小系统能耗,延长节点使用寿命。数值及仿真结果表明,基于中继节点信噪比门限的混合协同传输能够以较低的实现复杂度获得与理想的混合协同传输相近的性能,理论的性能分析结果与实际仿真结果相一致。 | 李国彦 张有光 廖芒 | 2012 | 航空学报2012，33，9： | 2 |
| 2 | Fair relay selection in decode-and-forward cooperation based on outage priority显示文摘The opportunistic cooperation schemes,where only the 'best' relay is selected to forward the message,have been widely investigated recently for their good performance in terms of outage probability.However,the unfair selections of relays may cause unbalance power consumptions among relays,which reduces the lifetime of energy constrained networks.In this paper,we introduce a novel concept of outage priority based fairness(OPF),aiming at improving the selection fairness among relays appropriately without outage performance deterioration.Then,a cooperation scheme is proposed to meet this concept,and corresponding theoretical analysis is also provided.Afterward,based on OPF,the achievable upper bound of the fairness is derived,and an optimal cross-layer designed scheme is also provided to achieve the bound.Numerical simulations are carried out finally,which not only validate the theoretical analysis,but also show that taking advantages of the proposed schemes,the fairness among all relays,as well as the network lifetime,can be greatly improved without any loss of outage performance,especially in high SNR regime. | LI YuBo WANG HuiMing YIN QinYe LUO Miao | 2013 | Science China(Information Sciences)2013，56，6： | 2 |
| 3 | Beamforming based decode-and-forward cooperation via backward synchronization显示文摘In this paper,a beamforming (BF) based cooperation scheme with decode-and-forward (DF) protocol is proposed and its performance analysis is provided.Firstly,to solve the issue of carrier synchronization in distributed networks,a backward synchronization (B-Sync) method is introduced,where participating relays synchronize to the reference carrier broadcast by the destination and make signals superimposed coherently at the destination without any phase feedback.Then,based on B-sync,a cooperation scheme with DF protocol is proposed to carry out BF forwarding among relays.The outage probability of this scheme is derived and analyzed,which shows that the full diversity order can be achieved by the proposed scheme.Furthermore,symbol error probability (SEP) analysis is presented to evaluate the practical performance.Simulation results validate the analysis,and show that the proposed scheme outperforms other existing ones in terms of outage probability and SEP. | LI YuBo YIN QinYe WANG Chen | 2012 | Science China(Information Sciences)2012，55，4： | 1 |
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