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引用次数: 63
摘要
MIMA/AS-MAC是一种基于天线选择的多天线抑制干扰的MAC协议，它利用多天线同时抑制来自相邻发射机的干扰和衰落。MIMA/AS-MAC协议采用带天线子集选择的空间复用技术进行数据包传输，采用Alamouti空时码控制数据包传输。为了研究MIMA/AS-MAC的性能，在ns-2网络模拟器中对双天线系统进行了仿真。测量了两个流量之间的网络总吞吐量和公平性。结果表明，MIMA/ as -MAC系统优于先前提出的MIMA-MAC方案，该方案不使用天线选择方案，并且混合了IEEE 802.11 MAC协议和Alamouti编码。
Improving throughput and fairness for MIMO ad hoc networks using antenna selection diversity
This paper presents a new MAC protocol, mitigating interference using multiple antennas with antenna selection (MIMA/AS-MAC), which uses multiple antennas to mitigate both interference from neighboring transmitters and fading. The proposed MIMA/AS-MAC protocol employs spatial multiplexing with antenna subset selection for data packet transmission, while using the Alamouti space-time code for control of packet transmission. To study its performance, the MIMA/AS-MAC was implemented in the ns-2 network simulator for a system with two antennas. The total network throughput and fairness between two traffic flows was measured. The results show that the MIMA/AS-MAC system outperforms the previously proposed MIMA-MAC scheme, which does not use an antenna selection scheme, as well as a hybrid of the IEEE 802.11 MAC protocol with Alamouti encoding.
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