Interference Self-Coordination: A Proposal to Enhance Reliability of   System-Level Information in OFDM-Based Mobile Networks via PCI Planning

doi:10.1109/TWC.2014.030514.130447

CORC > 北京大学 > 信息科学技术学院

	Interference Self-Coordination: A Proposal to Enhance Reliability of System-Level Information in OFDM-Based Mobile Networks via PCI Planning
	Yang, Hemin ; Huang, Anpeng ; Gao, Ruipeng ; Chang, Tammy ; Xie, Linzhen
刊名	ieee transactions on wireless communications
	2014
关键词	Interference self-coordination (ISC) ICI (inter-cell interference) PDCCH (physical downlink control channel) PCI (physical cell identifier) planning system-level information PERFORMANCE SCHEME
DOI	10.1109/TWC.2014.030514.130447
英文摘要	For system-level information in OFDM-based mobile networks, the full-cell coverage requirement raises the issue of Inter-Cell Interference (ICI) in physical control channels. Unfortunately, conventional approaches (e. g., scheduling, beam-forming) cannot effectively deal with this kind of ICI because of configuration limitations in physical control channels. To solve this challenge, this study defines a new concept of 'Interference Self-Coordination (ISC)' for enhancing this system-level information delivery. Specifically, we apply ISC to relieve the ICI effect over the Physical Downlink Control Channel (PDCCH), the most important physical control channel in Long-Term Evolution (LTE/LTE-Advanced) networks, in which Physical Cell Identifier (PCI) planning naturally serves as a self-coordination mechanism. We prove that PCI planning is the most effective solution to relieve ICI over PDCCHs, under the constraint of non-orthogonal control regions between neighboring cells. Since PCI planning is an NP-Complete problem, heuristic-strategy algorithms are devised for implementation, which are self-adaptive to dynamic configurations of the network and system, and compatible with any applicable ICI solutions. The numerical analysis and system-level simulation experiment results demonstrate that this proposal can increase overall system throughput by up to 17%, and also improve cell-edge throughput by up to 42%. In the worst 5% of sectors, the proposal can still obtain 45% system throughput and 200% cell-edge throughput gain.; Engineering, Electrical & Electronic; Telecommunications; SCI(E); EI; 0; ARTICLE; yhm11@pku.edu.cn; hapku@pku.edu.cn; tydxlz@pku.edu.cn; 4; 1874-1887; 13
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152139]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Yang, Hemin,Huang, Anpeng,Gao, Ruipeng,et al. Interference Self-Coordination: A Proposal to Enhance Reliability of System-Level Information in OFDM-Based Mobile Networks via PCI Planning[J]. ieee transactions on wireless communications,2014.
APA	Yang, Hemin,Huang, Anpeng,Gao, Ruipeng,Chang, Tammy,&Xie, Linzhen.(2014).Interference Self-Coordination: A Proposal to Enhance Reliability of System-Level Information in OFDM-Based Mobile Networks via PCI Planning.ieee transactions on wireless communications.
MLA	Yang, Hemin,et al."Interference Self-Coordination: A Proposal to Enhance Reliability of System-Level Information in OFDM-Based Mobile Networks via PCI Planning".ieee transactions on wireless communications (2014).