@article{article_635212, title={Impact of small cell user density on performance of small cells sleeping technique for HetNet}, journal={Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi}, volume={25}, pages={519–524}, year={2019}, author={Aldırmaz Çolak, Sultan}, keywords={Heterogeneous network,Macro cell,Small cell,Traffic offloading,User density}, abstract={