In a complex network, some nodes are relatively concentrated in topological structure, thus forming a relatively independent node group, which we call a community.Usually, there are multiple communities on a network, and these communities are interconnected and exchange information with each other.A node that plays an important role in the process
We study the achievable rate of an uplink MIMO cognitive radio system where the primary user (PU) and the secondary FM user (SU) aim to communicate to the closest primary base station (BS) via a multi-access channel through the same unmanned aerial vehicle (UAV) relay.The SU message is then forwarded from the primary BS to the secondary network wit
In this Piano Stool paper we will analyze specific reconciliation emergency of nature assets protection with a spatial and functional urban landscapes development trend.Due to multifunctional nature of urban landscapes, high level of air, water and land pollution, noise magnitude exalted influence, disarrangement of autochthony communications flows