Ngô Thế, A., Trần Huỳnh Minh, T., Phạm Huyền, T. and Lê Ngọc, T. 1655226000. Improving the operation of relay stations to maintain the connections for handover calls in 4G LTE system by channel relaying strategy . Transport and Communications Science Journal. 73, 5 (1655226000), 526-539. DOI:https://doi.org/10.47869/tcsj.73.5.7.