Journal Article10.1109/TWC.2018.2882434
Tractable Coverage Analysis for Hexagonal Macrocell-Based Heterogeneous UDNs With Adaptive Interference-Aware CoMP
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TL;DR: A mobile station GrouPing (MSGP)-based coverage analysis method, which partitions all MSs into four groups according to their main interference, and the whole coverage is obtained as the sum of the coverage of each MS group.
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Abstract: We consider a heterogeneous ultra dense network (HUDN) with both the hexagon and Poisson point process (PPP) layouts, which is more relevant for practical scenarios. A user-centric and adaptive interference-aware non-coherent coordinated multi-point transmission (IA-CoMP) scheme is used as a system setup to reduce both the cross-tier and the co-tier inter-cell interference (ICI) for the HUDN with range expansion (RE) in small cells. Due to the involvement of hexagonal macrocells, it is intractable to analyze the coverage performance of HUDNs with IA-CoMP. To this end, we present a mobile station GrouPing (MSGP)-based coverage analysis method, which partitions all MSs into four groups according to their main interference, and the whole coverage is obtained as the sum of the coverage of each MS group. We demonstrate that the proposed MSGP-based coverage analysis method can provide a tight upper bound when compared with Monte Carlo simulations. As the small cell density increases, the system coverage of HUDNs with hexagonal macrocells reduces exponentially, while the system coverage of HUDNs with PPP-based macrocells remains unchanged. Moreover, the system coverage increases with the larger one of the main ICI judging coefficient and the RE bias.
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Junxu Zhao,Qiang Wang,Yue Dong,Wei Wei +3 more
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Interference Aware CoMP for Macrocell-Based Heterogeneous Ultra Dense Cellular Networks
Ling Liu,Yiqing Zhou,Lin Tian,Bule Sun,Jinglin Shi +4 more
- 20 May 2018
TL;DR: It is shown that the proposed IA-CoMP scheme can provide a much better coverage performance especially in HUDN with higher small cell densities, compared with that of the existing CoMP schemes with fixed size.
7
Inter-Cell Interference Coordination for Control Channels in LTE Heterogeneous Networks
Stepan Kucera,David Lopez-Perez +1 more
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