Local connectivity for heterogeneous overlaid wireless networks

Local connectivity for heterogeneous overlaid wireless networks
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异构覆盖无线网络的本地连接

DOI:
10.1016/j.adhoc.2016.06.012
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发表时间:
2017-04
期刊:
影响因子:
4.8
通讯作者:
尹长川
尹长川
中科院分区:
计算机科学2区
文献类型:
--
作者:
刘旸;高静;余健;尹长川

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我们研究本地连接性,即两个共存无线自组织网络(主网络与辅助网络)的节点隔离概率,其中如果接收器处的信号干扰比(SIR)大于阈值,则两个用户可以进行通信。假设主要用户分布为泊松点过程(PPP),次要用户分布为Matern簇过程(MCP),我们研究网络参数对节点隔离概率的影响。给出了异构重叠网络的节点隔离概率的上限和下限。我们还研究了当主要用户作为MCP分布并且次要用户作为PPP分布时的节点隔离概率。数值和仿真结果表明,由于次网络的异构性,次用户的本地连接性能下降,而由于主网络的异构性,本地连接性能得到改善。
We study the local connectivity, i.e., the node isolation probability of two coexisting wireless ad hoc networks (a primary network vs. a secondary network), where two users can communicate if the signal-to-interference ratio (SIR) at the receiver is larger than a threshold. Assuming the primary users are distributed as a Poisson point process (PPP) and the secondary users are distributed as a Matern cluster process (MCP), we investigate the impact of network parameters on the node isolation probability. Upper and lower bounds for the node isolation probability of the heterogeneous overlaid networks are presented. We also study the node isolation probability when the primary users are distributed as a MCP and the secondary users are distributed as a PPP. Numerical and simulation results indicate that the secondary user’s local connectivity has a performance degradation due to the heterogeneity of the secondary network, while the local connectivity is improved due to the heterogeneity of the primary network.
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