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文件名称:4G Femtocell Resource Allocation and Interference Management.
文件大小:1.8MB
文件格式:PDF
更新时间:2020-12-25 11:09:56
4G Femtocell ,Resource Allocation, Interference
Femtocells have been considered as a promising technology to provide better
indoor coverage and spatial reuse gains in the last few years. Femtocells are low
power, low cost and user deployed wireless access points that use local broadband
connections as backhaul. Not only the users but also the operators benefit from
femtocells. On the one hand, users enjoy high-quality links; on the other hand,
operators decrease the operational expenditure (OPEX) and capital expenditure
(CAPEX) due to the traffic offloading and user’s self-deployment of femtocell
base stations (FBSs). Orthogonal frequency division multiple access (OFDMA)
based femtocells have been considered in major wireless communication standards,
e.g., LTE/LTE-Advanced. Due to spectrum scarcity and implementation difficulty,
spectrum-sharing, rather than spectrumsplitting, between femtocells andmacrocells
is more preferable from the operator’s perspective. However, co-channel deployed
femtocells may lead to severe co-channel interference between femtocells in dense
deployment, and cross-tier inference between macro-tier and femto-tier.