N-limited active mode with small-cell base station in heterogeneous network = 이종 네트워크 환경에서의 스몰셀의 N-제한 액티브 모드

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Expansion of network infrastructure leads to dramatically increasing network energy consumption. There have been many researches for studying minimization of energy consumption in heterogeneous network. Among these, switching off small-cell base stations is considered as efficient approach. However, frequent switching on/off small-cell base stations may cause deterioration of user’s average data rate and outage probability. Therefore, proper wake-up scheme needs to be proposed. In this paper, N-limited scheme is applied to heterogeneous network. This scheme is switching-off algorithm for a data base station in hyper cellular network, which is based on queueing model. We utilize this scheme for finding optimal number of calls for wake-up and close-down time in heterogeneous network. In escaping from queuing viewpoint, N-limited scheme is newly applied. New constraints considering characteristics of heterogeneous network is proposed, and the goal is to minimize average energy consumption. Markov chain is used for modeling the number of calls in small-cell base station coverage and operation mode. In performance evaluation, impact of system parameters on decision variables is checked.
Advisors
Lee, Chae Youngresearcher이채영researcher
Description
한국과학기술원 :산업및시스템공학과,
Publisher
한국과학기술원
Issue Date
2017
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 산업및시스템공학과, 2017.2,[iii, 28 p. :]

Keywords

Heterogeneous network; BS sleeping; N-limited scheme; Markov chain model; Genetic algorithm; 이종 네트워크; 기지국 수면; N-제한 모드; 마코브 체인 모델; 유전연산법

URI
http://hdl.handle.net/10203/243029
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=675232&flag=dissertation
Appears in Collection
IE-Theses_Master(석사논문)
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