The phenomenon of uplink/downlink (UL/DL) link imbalance in 3G High Speed Packet Access (HSPA+) Heterogeneous Networks (HetNet) presents one of the main challenges in HetNet deployments. In this paper we describe the impact of the imbalance on system behaviour and quantify the amount of affected user equipments (UEs) in the Strong Imbalance Zone (SIZ).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.