Abstract—Carrier Aggregation (CA) is one of the most
important technologies in the LTE-Advanced (LTE-A) system
for better transmission efficiency. The basic idea of CA is to
adopt more than one component carrier (CC) for user
equipment (UE) to increase its bandwidth. However, when UE
adopts component carriers from other adjacent base stations, it
will cause the interference and may decrease transmission
efficiency especially for the cell edge UE. Therefore, solving
interference with carrier aggregation is a critical issue toward
the effective improvement of system throughput. In this paper,
we propose a novel method to deal with not only the
interference between pico station and macro base station, but
also the interference between base stations. In the proposed
scheme, the radio interference, channel condition of UE, and
load balance are taken into consideration for proper CC
selection so as to improve the cell-edge UE performance. The
proposed scheme considers the interaction and correlation
between Inter-cell Interference Coordination (ICIC) and
enhanced Inter-cell Interference Coordination (eICIC) to
arrange the secondary CC for LTE-A UE. The simulation
results show that the proposed scheme can increase
transmission efficiency especially for the edge UE.
Index Terms—Carrier aggregation, component carrier,
inter-cell interference coordination, long term
evolution-advanced.
Yen-Wen Chen is with the Department of Communication Engineering,
National Central University, Taiwan (e-mail: ywchen@ce.ncu.edu.tw).
Chen-Ju Chen is with the Department of Communication Engineering,
National Central University, Taiwan. She is also with MediaTek Inc., Taiwan
(e-mail: julie081217@gmail.com).
[PDF]
Cite: Yen-Wen Chen and Chen-Ju Chen, "Study of Downlink Radio Resource Allocation Scheme with Interference Coordination in LTE — A Network," International Journal of Future Computer and Communication vol. 6, no. 3, pp. 110-114, 2017.
