Cooperative spatial multiplexing for high-rate wireless communications
Cooperative spatial multiplexing for high-rate wireless communications
复制标题
用于高速无线通信的协作空间复用
DOI：
10.1109/spawc.2005.1505896
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
R. Cherukuri
中科院分区：
文献类型：
--
作者：
Sang Wu Kim;R. Cherukuri
我们提出了一种新的协作通信方法，简化了中继节点上的发送和接收处理的要求，同时提供了显着的节省传输能量的合作分集技术，特别是在高频谱效率制度。所提出的方法是使每个中继节点只检测源数据流的一部分（子流），并在同一物理信道上同时转发所有子流。然后，目的地处的多个接收天线允许基于子流的空间特性来分别检测子流。这种方法的独特好处是减少了每个中继节点上的发送和接收处理要求。因此，所提出的方法在发送高速率数据时特别有吸引力，其中每个中继节点由于能量、计算能力、硬件和空间（大小）方面的资源有限而只能处理低速率。
We propose a new cooperative communication approach that simplifies the transmit and receive processing requirement on the relay node while providing significant savings in the transmission energy over the cooperative diversity technique, particularly in high spectral efficiency regime. The proposed approach is to make each relay node to detect only a fraction (sub-stream) of the source data stream and forward all sub-streams simultaneously over the same physical channel. Then, multiple receive antennas at the destination allow the sub-streams to be detected separately based on their spatial characteristics. The distinctive benefit of this approach is the reduction of transmit and receive processing requirements on each relay node. Therefore, the proposed approach is particularly attractive in sending high-rate data where each relay node can handle only low-rates due to limited resources in terms of energy, computation power, hardware, and space (size).