Interference management scheme of ultra dense network based on clustering

Wen, Yao; Li, Jinru; Bowen, Tan; Hao, Shuliang

doi:10.1109/itnec.2017.8284755

Cited by 9 publications

(2 citation statements)

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“…Method Result [30] Power control method Probability of the SINR value was not reaching the target or below or equal to 20 dB reaching 65% [31] Power control method considering partial pathloss compensation Simulation shows that the smaller the pathloss compensation value, the higher the SINR value [18] Fractional frequency reuse (FFR) method to reduce cross-tier interference FFR technique produced the lowest SINR of -4 dB and the highest SINR of 15 dB [32] FFR and relay methods CDF of SINR value at 20 dB reaches 98% when the inner region radius was 0.5 km [33] Interference identification and resource management techniques to reduce inter-femtocell interferences…”

Section: Refmentioning

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: Refmentioning

confidence: 99%

“…In general, it can be said from the In ref. [30], the system that applies the power control method has a probability of the SINR value not reaching the target or below or equal to 20 dB reaching 65%. While ref.…”

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confidence: 99%