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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Capacities of mobile air/ground radio communication systems employing cylindrical cells
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Capacities of mobile air/ground radio communication systems employing cylindrical cells

机译：采用圆柱网孔的移动空中/地面无线电通信系统的容量

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Cylindrical cells represent actual service volumes used in terminal areas (airports) for air traffic control (ATC) communications between pilots and ground controllers. The channel capacities of simplex and duplex frequency division multiplexing (FDM) mobile air/ground (A/G) radio communication systems employing cylindrical cells are compared assuming a network of identical cylindrical cells and a dedicated radio channel per group of aircraft and its ground controller. The two systems are compared considering both cochannel and adjacent channel interferences for analog and digital modulation. Then, capacities of duplex FDM and code division multiplexing (CDM) are compared under the same assumptions for digital modulation. The capacity of FDM depends mainly on the frequency reuse distance while the capacity of CDM is limited by the self users interference. This work shows that the capacity ratio of duplex and simplex FDM systems depends on the cell dimensions. It also shows that considering ATC requirements, FDM provides a higher capacity than CDM for all the cell dimension ranges considered.
机译：圆柱形单元表示在终端区域（机场）中用于飞行员与地面控制器之间的空中交通管制（ATC）通信的实际服务量。假设每组飞机及其地面控制器均具有相同的圆柱单元网络和专用无线电信道，则比较使用圆柱单元的单工和双工频分复用（FDM）移动空中/地面（A / G）无线电通信系统的信道容量。比较这两个系统，同时考虑了模拟和数字调制的同频道和相邻频道干扰。然后，在相同的数字调制假设下，比较了双工FDM和码分复用（CDM）的容量。 FDM的容量主要取决于频率复用距离，而CDM的容量则受自身用户干扰的限制。这项工作表明，双工和单工FDM系统的容量比取决于单元尺寸。它还表明，考虑到ATC的要求，对于所考虑的所有小区尺寸范围，FDM的容量都比CDM高。

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