Proceedings ArticleDOI
Pico Cell Range Expansion with Interference Mitigation toward LTE-Advanced Heterogeneous Networks
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This paper investigates performance of CRE with various bias settings and shows that a moderate bias setting is effective to enhance capacity and user throughput and proposes to support coordination of Lightly Loaded CCH transmission Subframe (LLCS) in LTE-Advanced.Abstract:
Deploying Pico eNodeBs (PeNBs) throughout a Macro cell layout is a promising solution to enhance system capacity and user throughput. However, strong received power from Macro eNodeBs (MeNBs) makes the Pico cell areas narrow. This causes limited cell splitting gain. Cell Range Expansion (CRE), which allows a User Equipment (UE) to be served by a cell with weaker received power, is simple and typical one of alternative cell associations to enhance offloading but it causes downlink (DL) interference issue in not only data and also control channels (CCHs). In this paper, we investigate performance of CRE with various bias settings and show that a moderate bias setting is effective to enhance capacity and user throughput. With respect to the DL interference issue in CCHs, we propose to support coordination of Lightly Loaded CCH transmission Subframe (LLCS) in LTE-Advanced.read more
Citations
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Journal ArticleDOI
Capacity and Fairness Analysis of Heterogeneous Networks with Range Expansion and Interference Coordination
TL;DR: Off-loading benefits of range expansion in HetNets are captured through cumulative distribution functions (CDFs) of the downlink signal to interference plus noise ratio (SINR) difference between the macrocell and strongest picocell signals to investigate the system capacity and fairness.
Journal ArticleDOI
METIS research advances towards the 5G mobile and wireless system definition
TL;DR: A first view on the METIS system concept is provided, the main features including architecture are highlighted, and the challenges are addressed while discussing perspectives for the further research work.
Proceedings ArticleDOI
Cell selection for range expansion with almost blank subframe in heterogeneous networks
Jinyoung Oh,Youngnam Han +1 more
TL;DR: Simulation results show that the performance of the proposed cell selection scheme can improve average user rate and increase the number of offloaded users as the ABS ratio increases.
Proceedings ArticleDOI
Load balancing in heterogeneous LTE: Range optimization via cell offset and load-coupling characterization
Iana Siomina,Di Yuan +1 more
TL;DR: An optimization framework for load balancing in LTE HetNets, by means of cell range assignment using cell-specific offset, and a computationally efficient bounding scheme to approximate the solution of the non-linear system.
Journal ArticleDOI
Location-Aware Cross-Tier Coordinated Multipoint Transmission in Two-Tier Cellular Networks
Ahmed Hamdi Sakr,Ekram Hossain +1 more
TL;DR: In this paper, the authors proposed a location-aware cross-tier cooperation (LA-CTC) between BSs in different tiers for downlink CoMP transmission in two-tier cellular networks.
References
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Proceedings ArticleDOI
Investigation on Optimum Radio Link Connection Using Remote Radio Equipment in Heterogeneous Network for LTE-Advanced
TL;DR: From the simulation results, it is shown that the proposed independent and multipoint RLC methods are very promising candidates to improve the user throughput particularly near the cell edge in a heterogeneous network for LTE-Advanced.