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作为下一代无线网络中的一种新型网络结构,无线MESH网受到了广泛关注。MESH网络节点间的自组织组网方式,使得网络具有良好的灵活性、鲁棒性,同时也使得MESH网络的性能称为研究的重点。从功率控制和信道分配等方面研究了MESH网络的虚拟骨干结构的拓扑优化,功率控制通过调节节点发射功率来改变其对邻居节点的影响;信道分配利用正交信道的相互不连通性质改变节点对于邻居节点的影响,以降低链路间的干扰、维护网络连通性、提高系统容量。
As a new type of network architecture in the next generation of wireless networks, the wireless MESH network has drawn much attention. MESH network nodes self-organizing networking, making the network has good flexibility, robustness, but also makes the MESH network performance as the focus of the study. The topology optimization of the virtual backbone structure of MESH network is studied from aspects of power control and channel assignment. Power control changes the influence of neighboring nodes by adjusting the transmission power of nodes. The channel allocation utilizes the mutual non-connectivity nature of orthogonal channels to change the nodes’ Neighbor nodes to reduce the interference between links, maintain network connectivity and improve system capacity.