Resource management in multi-hop cellular networks : cross-layer design and multi-carrier system optimization = 멀티홉 셀룰러 망에서의 자원 관리 기법 : 계층 교차 설계 및 다중반송파 시스템 최적화cross-layer design and multi-carrier system optimization

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In this thesis, we provide a resource management framework for multi-hop multi-carrier systems. First, we deal with a cross layer design issue in relay-enhanced MCN (multi-hop cellular network). Under per-flow queueing scenario, we develop a cross layer control algorithm comprised of 1)flow control, 2)link scheduling and 3)resource allocation. The performance analysis proves that the derived cross layer control algorithm achieves arbitrarily close long-term optimal utility while guaranteeing the stability of the queueing system. After then, our focus moved onto the resource allocation problem in multi-hop multi-carrier systems, which will replace the resource allocation part of the cross layer control algorithm. By considering prohibitive complexity of the combinatorial problem, we propose a stepwise approach comprised of 1) STEP-1 FSA (fast subcarrier allocation) and 2) STEP-2 JSPA (joint subcarrier and power allocation). The STEP-1 FSA itself is one finished computationally efficient subcarrier allocation algorithm with equal power level on each subcarrier. In STEP-2 JSPA, each transmitting node performs joint subcarrier and power allocation for the given set of subcarriers to its outgoing links. By incorporating STEP-2 JSPA with STEP-1 FSA, much better and optimized performance can be achieved especially for the broadband systems.
Advisors
Chong, Songresearcher정송researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2008
Identifier
297223/325007  / 020063504
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2008.2, [ iv, 63 p. ]

Keywords

Cross layer design; Multi-hop cellular networks; OFDM-based multi-carrier system; Lyapunov optimization technique; 계층 교차 설계; 멀티홉 셀룰러 망; OFDM 기반 다중반송파 시스템; 리야프노프 최적화 기법; Cross layer design; Multi-hop cellular networks; OFDM-based multi-carrier system; Lyapunov optimization technique; 계층 교차 설계; 멀티홉 셀룰러 망; OFDM 기반 다중반송파 시스템; 리야프노프 최적화 기법

URI
http://hdl.handle.net/10203/38606
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=297223&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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