| 三跳协同分集系统及空时编码的应用 |
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| 引用本文： | 邓卫华,高西奇.三跳协同分集系统及空时编码的应用[J].东南大学学报(自然科学版),2010,40(2). |
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| 作者姓名： | 邓卫华 高西奇 |
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| 作者单位： | 东南大学移动通信国家重点实验室,南京,210096 |
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| 基金项目： | 国家教育部博士点基金资助项目(20060286016) |
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| 摘 要： | 为改善点对点单天线通信的性能,提出了一种三跳协同分集的系统模型,并分析了误码性能.该系统模型可适用于蜂窝式移动网络及Ad hoc网络,源端及目的端以一定的条件分别在其周围寻找空闲的节点作为其虚拟天线阵列,形成一个虚拟的多输入多输出(MIMO)系统,并将空时编码应用于其中.该系统模型不同于已有的协同分集系统,信号从源端需要三跳才能到达目的端,且协同节点只需提供一小部分功率.仿真结果表明,在仅少量增加系统总功率的条件下,点对点的误码性能可以得到极大改善.
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| 关 键 词： | 协同分集 虚拟MIMO系统 空时编码 |
Three-hop cooperative diversity system and application of space time coding |
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| Deng Weihua Gao Xiqi.Three-hop cooperative diversity system and application of space time coding[J].Journal of Southeast University(Natural Science Edition),2010,40(2). |
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| Authors: | Deng Weihua Gao Xiqi |
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| Institution: | National Mobile Communications Research Laboratory;Southeast University;Nanjing 210096;China |
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| Abstract: | To improve point to point link performance of two single antenna terminals,a three-hop cooperative diversity system model is proposed,which can be applied in both cellular networks and Ad hoc networks.In this model,both source node and destination node request free nodes around them to perform as a virtual antenna array based on some selection criterion,then a virtual multiple-input multiple-output(MIMO) system is constructed and space time block coding is applied.Signals from source node need three hops be... |
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| Keywords: | cooperative diversity virtual multiple-input multiple-output system space time coding |
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