Proceedings ArticleDOI
Time domain coordination for inter-cell interference reduction in LTE hierarchical cellular systems
Ssu-Han Lu,Wen-Pin Lai,Li-Chun Wang +2 more
- pp 51-55
Reads0
Chats0
TLDR
An interference-aware ABS ratio adaptation technique is proposed to enhance the total spectrum efficiency of the hierarchical picocell/macrocell system and can improve the spectral efficiency of pico-cells and macro-cells by 13% and 7% at the cell edge, respectively.Abstract:
In this paper, we present an interference-aware slot allocation technique to improve system performance of the hierarchical picocell/macrocell system, where low-power picocells are underlying a high-power macrocell. Although a hierarchical picocell/macrocell system can improve capacity, it also poses a challenging inter-cell interference (ICI) issue. To control the ICI between pico-cells and macro-cells, one enhanced inter-cell interference coordination (eICIC) technique, called almost blank subframes (ABS), was proposed in the 3rd Generation Partnership Project (3GPP) Long-Term Evolution-Advanced (LTE-A) system. Nevertheless, the current ABS mechanism in 3GPP only defines the fixed ABS ratio, which is not very spectrum efficient and can affect the macrocellular system performance. In this paper, we propose an interference-aware ABS ratio adaptation technique to enhance the total spectrum efficiency of the hierarchical picocell/macrocell system. Compared with the current fixed ABS ratio approach, the proposed method can improve the spectral efficiency of pico-cells and macro-cells by 13% and 7% at the cell edge, respectively.read more
Citations
More filters
Journal ArticleDOI
Interference management issues for the future 5G network: a review
TL;DR: This paper discusses the issues related to interference management for 5G network from the perspective of Heterogeneous Network and Device-to-Device communication, by using enabling techniques, such as Inter-cell Interference Coordination, Coordinated Multipoint, and Coordinated Scheduling.
Journal ArticleDOI
Time-domain ICIC and optimized designs for 5G and beyond: a survey
TL;DR: The main idea of time-domain interference coordination and two basic schemes in the eICIC standardization are presented, and a systematic introduction to the interactions of these techniques with other network functions are presented.
Journal ArticleDOI
Delay-Aware ABS Adjustment to Support QoS for Real-Time Traffic in LTE-A HetNet
You-Chiun Wang,Shih-Ting Chen +1 more
TL;DR: A delay-aware ABS adjustment (DA3) method to improve performance and lower packet dropping in real-time (RT) packet delay, which increases cells’ goodput while reducing RT packet dropping.
Journal ArticleDOI
A dynamic CRE and ABS scheme for enhancing network capacity in LTE-advanced heterogeneous networks
TL;DR: This study proposes a novel scheme that integrates dynamic cell range expansion (CRE) and dynamic almost blank subframe (ABS) schemes based on 3GPP R10 eICIC that can improve network system capacity and ensures that offloaded users always have access to sufficient resources.
Journal ArticleDOI
Efficient management of interference and power by jointly configuring ABS and DRX in LTE-A HetNets
You-Chiun Wang,Chien-Chun Huang +1 more
TL;DR: A joint interference and power management (JIPM) mechanism to improve LTE-A performance by integrating ABS and DRX and results show that JIPM achieves higher energy efficiency and lower packet dropping of real-time flows, as compared with other schemes.
References
More filters
Posted Content
A Quantitative Measure Of Fairness And Discrimination For Resource Allocation In Shared Computer Systems
Raj Jain,Dah Ming Chiu,W. Hawe +2 more
TL;DR: A quantitative measure called Indiex of FRairness, applicable to any resource sharing or allocation problem, which is independent of the amount of the resource, and boundedness aids intuitive understanding of the fairness index.
Book
LTE - The UMTS Long Term Evolution: From Theory to Practice
TL;DR: Scrase et al. as discussed by the authors provide a comprehensive system-level understanding of LTE, built on explanations of the theories which underlie it, and provide a broad, balanced and reliable perspective on this important technology Lucid yet thorough, the book devotes particular effort to explaining the theoretical concepts in an accessible way.
A Quantitative Measure Of Fairness And Discrimination For Resource Allocation In Shared Computer Systems
Raj Jain,Dah Ming Chiu,W. Hawe +2 more
TL;DR: Indiex of Fairness as mentioned in this paper is a quantitative measure that is applicable to any resource sharing or allocation problem, and it is independent of the amount of the resource and the fairness index always lies between 0 and 1.
Proceedings ArticleDOI
LTE-Advanced: Heterogeneous networks
TL;DR: To enhance the performance of heterogeneous networks, advanced techniques are described which are needed to manage and control interference and deliver the full benefits of such networks.
Journal ArticleDOI
Cell Association and Interference Coordination in Heterogeneous LTE-A Cellular Networks
TL;DR: New paradigms for design and operation of heterogeneous cellular networks, focusing on cell splitting, range expansion, semi-static resource negotiation on third-party backhaul connections, and fast dynamic interference management for QoS via over-the-air signaling are described.
Related Papers (5)
Techniques for Interference Mitigation Using Cooperative Resource Partitioning in Multitier LTE HetNets
Rajkarn Singh,C. Siva Ram Murthy +1 more