A Cooperative Scanning Mechanism for the Mobile Relay in the Moving Network Environment

This paper proposes a cooperative scanning mechanism to overcome the increased service disruption time due to the successive scanning of the mobile relay station(MRS) and its subordinated mobile stations(MSs) in the moving network environment. The proposed mechanism regulates that the scanning duration of the MSs attached to the MRS is overlapped with that of the MRS. It results in the decreased service disruption time of the MS. We also use the similarity of the signal quality of the MRS and the MSs that is caused by the feature of the moving network to reduce the scanning duration of the MRS. Compared with the conventional scanning mechanism, the proposed mechanism reduces the scanning time of the MRS about 33% and 17% at the two-tier cell structure environment(the number of the neighbor BSs is 18) and the one-tier cell structure environment(the number of the neighbor BSs is 6), respectively. The rough calibration mechanism improves the accuracy of the measurement result. Therefore, the proposed mechanism facilitates the deployment of the vehicular network using the MRS.