  The wireless network communication mode represented by the Internet of
vehicles (IoV) has been widely used. However, due to the limitations of
traditional network architecture, resource scheduling in wireless network
environment is still facing great challenges. This paper focuses on the
allocation of bandwidth resources in the virtual network environment. This
paper proposes a bandwidth aware multi domain virtual network embedding
algorithm (BA-VNE). The algorithm is mainly aimed at the problem that users
need a lot of bandwidth in wireless communication mode, and solves the problem
of bandwidth resource allocation from the perspective of virtual network
embedding (VNE). In order to improve the performance of the algorithm, we
introduce particle swarm optimization (PSO) algorithm to optimize the
performance of the algorithm. In order to verify the effectiveness of the
algorithm, we have carried out simulation experiments from link bandwidth,
mapping cost and virtual network request (VNR) acceptance rate. The final
results show that the proposed algorithm is better than other representative
algorithms in the above indicators.
