Topological Interference Management With Reconfigurable Antennas
Topological Interference Management With Reconfigurable Antennas
复制标题
使用可重构天线的拓扑干扰管理
DOI：
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发表时间：
2017
影响因子：
8.3
通讯作者：
Jungwoo Lee
中科院分区：
文献类型：
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作者：
Heecheol Yang;Navid Naderializadeh;A. Avestimehr;Jungwoo Lee
研究了部分连通干扰网络在线性编码策略下的对称自由度(DoF)。我们假设接收器配备了可重新配置的天线，可以在它们的预设模式之间切换。在这样的网络环境下，我们刻画了一类可实现半线性对称DoF的网络拓扑。此外，我们还得到了任意网络拓扑下线性对称DOF的两个一般上界。我们还证明了网络中所有发射机至多有两个共干扰源的一类网络拓扑界的紧致性。
We study the symmetric degrees-of-freedom (DoF) of partially connected interference networks under linear coding strategies without channel state information at the transmitters beyond topology. We assume that the receivers are equipped with reconfigurable antennas that can switch among their preset modes. In such a network setting, we characterize the class of network topologies in which half linear symmetric DoF is achievable. Moreover, we derive two general upper bounds on the linear symmetric DoF for arbitrary network topologies. We also demonstrate the tightness of our bounds for the class of network topologies in which all the transmitters in the network have at most two co-interferers.