【資料名稱】：Performance Evaluation of Inter-cell Interference Coordinati

【資料作者】：Masashige Shirakabe

【資料日期】：2011.8

【資料語言】：英文

【資料格式】：DOC

【資料目錄和簡介】：

In Long-Term Evolution (LTE)-Advanced,
heterogeneous networks where femtocells and picocells are
overlaid onto macrocells are extensively discussed in addition to
traditional well-planned macrocell deployment to improve
further the system throughput. In heterogeneous network
deployment, combined usage of inter-cell interference
coordination (ICIC) and cell range expansion (CRE) is very
effective in improving the system and cell-edge throughput. In
this combined usage, the fraction of the sets of user equipment
(UEs) connected to the picocells, which are controlled through
CRE, and that connected to macrocells affect the gain from the
ICIC. Therefore, this paper evaluates the performance of ICIC
and CRE in picocell deployments in the LTE-Advanced downlink.
Simulation results (4 picocells and 30 UEs are located within 1
macrocell) assuming a full buffer model show that when the CRE
offset value is set between 8 to 20 dB, almost the same user
throughput performance is obtained by allocating the
appropriate resources to protect UEs that connect to the picocells.