Proceedings ArticleDOI
Downlink FTP Performance of Heterogeneous Networks for LTE-Advanced
Madhavan Srinivasan Vajapeyam,Aleksandar Damnjanovic,Juan Montojo,Tingfang Ji,Yongbin Wei,Durga Prasad Malladi +5 more
- pp 1-5
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TLDR
System simulations results for an FTP traffic model indicate that, for a pico cell deployment with density of 4 picos per macro cell, 40% or more performance gain can be achieved when techniques enabling cell range expansion are deployed.Abstract:
This paper discusses the need and enabling mechanisms for a heterogeneous deployment model in LTE networks, where lower power nodes are deployed in a macro network. Cell range expansion, enabled through cell biasing and adaptive resource partitioning, is seen as an effective method to balance the load among the nodes in the network and to improve overall trunking efficiency. Interference cancellation receiver plays a crucial role to ensure acquisition of weak cells and reliability of control and data reception in the presence of legacy signal. System simulations results for an FTP traffic model indicate that, for a pico cell deployment with density of 4 picos per macro cell, 40% or more performance gain can be achieved when techniques enabling cell range expansion are deployed.read more
Citations
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Proceedings ArticleDOI
Performance of LTE-Advanced macro-pico heterogeneous networks
TL;DR: Examining the downlink and uplink performance of co-channel macro-pico heterogeneous network shows that huge performance benefit can be obtained if heterogenous network is well designed and parameterized.
Proceedings ArticleDOI
ADMM based algorithm for eICIC configuration in heterogeneous cellular networks
TL;DR: The adaptive eICIC configuration problem is studied in this paper to adjust the parameters including the ratio of Almost Blank Subframes (ABS) and the bias of cell range expansion (RE) to solve the problem by providing an efficient distributed optimization framework.
Proceedings ArticleDOI
Mobility-aware dynamic inter-cell interference coordination in HetNets with cell range expansion
TL;DR: This work proposes a mobility-aware e-ICIC scheme which turns-off some of the Resource Blocks in the Macrocell in function of the mobility behaviour of the range-expanded Pico users, thereby providing an efficient trade-off between Macrocell and Picocell achievable throughputs.
Proceedings ArticleDOI
Time domain coordination for inter-cell interference reduction in LTE hierarchical cellular systems
TL;DR: 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.
Proceedings ArticleDOI
Joint downlink and uplink network performance analysis with CRE in heterogeneous wireless network
TL;DR: This paper focuses on the performance of downlink and uplink joint transmission in two-tier heterogeneous network where micro BS employs CRE, and derives the expression of whole network transmission success probability (TSP) and energy efficiency (EE) which considering joint transmission of DL and UL.
References
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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.