HetNet için küçük hücre kullanıcı yoğunluğunun küçük hücre uyutma tekniği performansı üzerindeki etkisi

Yıl 2019, Cilt: 25 Sayı: 5, 519 - 524, 21.10.2019

Sultan Aldırmaz Çolak

Öz

Bu çalışmada, küçük hücre
kullanıcı yoğunluğunun güç tüketimi ve makro ve küçük hücreler tarafından
servis verilen kullanıcı sayısı üzerindeki etkisi analiz edilmektedir.
Kullanıcıların tüm kapsama alanında düzgün dağılımlı olarak konumlandığı ve
küçük hücre kullanıcı yoğunluğunun makro hücre kullanıcı yoğunluğu ile doğrusal
olarak ilişkili olduğu varsayılmıştır. Benzetimlerde, üç farklı ortalama değer
seçilmiş ve bu değerlere göre güç tüketimi ve makro hücre ve küçük hücreler
tarafından servis verilen kullanıcı sayısı incelenmiştir. Benzetim sonuçları, düşük
ortalama değere sahip küçük hücrelerin yüksek tasarruf gücü sağladığını
göstermektedir. Makro hücrenin kullanıcı yoğunluğu



















 ve küçük hücre kullanıcı yoğunluğunun ortalama
değeri 15 olduğunda, küçük hücre uyutma tekniği kullanılarak elde edilen kazanç
695 Watt’tır.

 olduğunda ise 372 Watt’a düşmektedir. Benzer
olarak küçük hücre kullanıcı yoğunluğunun ortalama değeri arttıkça algoritma
ile elde edilen güç kazancı azalmaktadır.

Anahtar Kelimeler

Heterojen ağlar, Kullanıcı yoğunluğu, Küçük Hücre, Makro Hücre, Trafik aktarma

Impact of small cell user density on performance of small cells sleeping technique for HetNet

Öz

In this paper, we analyze the impact of the
small cell user density on the power consumption and the number of served users
by the macro cell and small cells. It is assumed that users are distributed
uniformly in all coverage area with different density and small cell user
density is related linearly with macro cell user density. In the simulations,
three different mean values are chosen, where the power consumption and the
number of served users by the macro cell and small cells are investigated
according to these values. The simulation results show that small cells with
low mean value enable to save more power. When user density of macro cell is



















and mean value of small cell user density equals
to 15, saved power by using the small cells sleeping technique is 695 Watts.
When

this saved power decreases to 372 Watts.
Similarly, as the mean value of the small cell user density increases, the
power gain obtained by the algorithm decreases.

Anahtar Kelimeler

Heterogeneous network, Macro cell, Small cell, Traffic offloading, User density

Kaynakça

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