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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.2
- 수록면
- 0 - 0 (1page)
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In Long Term Evolution (LTE) cellular networks,
the transmit power control (TPC) mechanism consists
of two parts: the open loop (OL) and closed loop. Most
cellular networks consider OL/TPC because of its
simple implementation and low operation cost. The
analysis of OL/TPC parameters is essential for efficient
resource management from the cellular operator’s
viewpoint. In this work, the impact of the OL/TPC
parameters is investigated for homogeneous small
cells and heterogeneous small-cell/macrocell network
environments. A mathematical model is derived to
compute the transmit power at the user equipment, the
received power at the eNodeB, the interference in the
network, and the received signal-to-interference ratio.
Using the analytical platform, the effects of the
OL/TPC parameters on the system performance in
LTE networks are investigated. Numerical results
show that, in order to achieve the best performance,
it is appropriate to choose asmall = 1 and Po-small =
–100 dBm in a homogenous small-cell network.
Further, the selections of asmall = 1 and Po-small =
–100 dBm in the small cells and amacro = 0.8 and
Po-macro = –100 dBm in the macrocells seem to be
suitable for heterogeneous network deployment.
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