Interference Management with Relay-Based Clustering Method on Ultra Dense Networks of Femto-Macrocellular Network

Hasim, Sitronella Nurfitriani; Susanto, Misfa; Fitriawan, Helmy; Hamdani, Fadil

doi:10.1109/iccteie54047.2021.9650637

Cited by 8 publications

(8 citation statements)

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“…The contribution of this paper is an interference management method using a relay-based clustering method in mitigating cross-tier interferences coming from Macrocell User Equipment (MUEs) in neighboring macrocells to the certain numbers of observed HeNBs. In our previous paper [21], the highest SINR value after applying the relay-based clustering method was 30 dB, while in this current paper it will be shown that the highest SINR value achieves 40 dB. This is because in the paper [21] the analysis focus is only on two sectors out of six sectors for sectorized cells.…”

Section: Introductionmentioning

confidence: 71%

“…In our previous paper [21], the highest SINR value after applying the relay-based clustering method was 30 dB, while in this current paper it will be shown that the highest SINR value achieves 40 dB. This is because in the paper [21] the analysis focus is only on two sectors out of six sectors for sectorized cells. One sector of two sectors from the observed macrocell was very close to the edge of another macrocell.…”

Section: Introductionmentioning

confidence: 71%

“…In each sector, it was deployed by thirty-three femtocells. It is different from [21], in this current paper femtocells presents at two scenarios i.e., femtocells are deployed in the whole cell edge area of macrocells and the femtocells are deployed in the cell edge of macrocells in the sectorized macrocells consisting of six sectors. Our target is that relay-based clustering method is used to mitigate the interference of the femtocells being in the cell edge area.…”

Section: Introductionmentioning

confidence: 94%

“…Simulation results shown that the proposed method can increase the throughput of femto user (FU) [21] Relay-based clustering method to mitigate cross-tier interference Simulation results shown that the proposed method can improve the performance of the femtocell access point (FAP) located on the cell edge Juli -Desember 2021…”

Section: Refmentioning

confidence: 99%

“…More specific, we are targeting to reduce the effect of cross-tier interferences. This paper is an extension of a paper that has been presented in [21], where the relay-based clustering method was used for interference management in the femtocell-macrocell network. In that previous paper, the observed macrocells were divided into six sectors.…”

Section: Introductionmentioning

confidence: 99%

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Relay-Based Clustering Method for Interference Management in Heterogeneous Wireless Cellular Network

Susanto

Hasim

Fitriawan

2021

Jurnal Teknik Elektro

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Femtocell is one of solutions to improve quality of services and network capacity for users in indoor areas. Radio resources used by femtocells are shared from macrocell network, thus it saves the use of frequency spectrum. However, one of problems in deploying femtocells within coverage area of macrocells is interference due to radio resources sharing between femtocells and macrocells. It creates interferences called as cross-tier (macrocell-femtocell/femtocell-macrocell) and co-tier (macrocell-macrocell/femtocell-femtocell) interferences. This paper proposes a relay-based clustering method to mitigate interference in femtocells located in the whole edge area of macrocell and the cell edge area of sectorized macrocells. Relay nodes are deployed statically (fixed location) in the neighboring macrocell area. Relay node will recruit their members based on the shortest distance. Certain relay node’s members do not need to transmit large amounts of power to enhanced Node B (eNB), such that interference from Macrocell User Equipment (MUE) to Home enhanced Node B (HeNB) can be minimized. Simulation experiments has been carried out and optimistic results for the sectorized macrocells scenario show that Signal-to-Interference-plus-Noise-Ratio (SINR) of femtocells for the conventional system that does not reach the targeted SINR of 20 dB is 87%. Meanwhile, after applying the relay-based clustering method, SINR value of femtocells below or equal to 20 dB reaches 72%. Optimistic results for throughput and Bit Error Rate (BER) show improvement of 15% and 14%, respectively. It has been shown that the relay-based clustering method can provide better performance compared to the conventional system even for femtocells densely deployed.

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Section: Introductionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 94%

Section: Refmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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