Dynamic channel assignment based on interference measurement with threshold for multi-beam mobile satellite networks

Satellite and terrestrial integrated mobile communication systems (STICS) is proposed to secure communications services anytime and anywhere. In the case of natural disasters or special event, it is required for satellite systems to allocate the frequency resources to a specific area as much as possible. Dynamic channel assignment is one of the attractive solutions to achieve the flexible and efficient utilization of the frequency resources. Although dynamic channel assignment can increase the bandwidth per satellite cell, smaller frequency reuse factor results in larger inter-cell interference and the link quality degradation. To solve this problem, this paper proposes centralized dynamic channel assignment based on interference measurement with link quality threshold control for multi-beam mobile satellite communications networks. It also shows the performance evaluation results by computer simulations regarding the blocking rate and the link quality.