doi: 10.18178/ijfcc.2017.6.3.500
Study of Downlink Radio Resource Allocation Scheme with Interference Coordination in LTE — A Network
Yen-Wen Chen
,
Chen-Ju Chen
- Department of Communication Engineering, National Central University, Taiwan.
Abstract
Carrier Aggregation (CA) is one of the mostimportant technologies in the LTE-Advanced (LTE-A) systemfor better transmission efficiency. The basic idea of CA is toadopt more than one component carrier (CC) for userequipment (UE) to increase its bandwidth. However, when UEadopts component carriers from other adjacent base stations, itwill cause the interference and may decrease transmissionefficiency especially for the cell edge UE. Therefore, solvinginterference with carrier aggregation is a critical issue towardthe effective improvement of system throughput. In this paper,we propose a novel method to deal with not only theinterference between pico station and macro base station, butalso the interference between base stations. In the proposedscheme, the radio interference, channel condition of UE, andload balance are taken into consideration for proper CCselection so as to improve the cell-edge UE performance. Theproposed scheme considers the interaction and correlationbetween Inter-cell Interference Coordination (ICIC) andenhanced Inter-cell Interference Coordination (eICIC) toarrange the secondary CC for LTE-A UE. The simulationresults show that the proposed scheme can increasetransmission efficiency especially for the edge UE.
Keywords
- Carrier aggregation
- component carrier
- inter-cell interference coordination
- long termevolution-advanced
How to 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. https://doi.org/ 10.18178/ijfcc.2017.6.3.500
Copyright & License
Copyright © 2017 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).