Computer Science – Networking and Internet Architecture
Scientific paper
2011-12-07
IEEE Wireless Commun. Mag., vol. 18, no 3, Page(s):22 - 30, 2011
Computer Science
Networking and Internet Architecture
12 pages, 4 figures, 2 tables
Scientific paper
10.1109/MWC.2011.5876497
3GPP LTE-Advanced has started a new study item to investigate Heterogeneous Network (HetNet) deployments as a cost effective way to deal with the unrelenting traffic demand. HetNets consist of a mix of macrocells, remote radio heads, and low-power nodes such as picocells, femtocells, and relays. Leveraging network topology, increasing the proximity between the access network and the end-users, has the potential to provide the next significant performance leap in wireless networks, improving spatial spectrum reuse and enhancing indoor coverage. Nevertheless, deployment of a large number of small cells overlaying the macrocells is not without new technical challenges. In this article, we present the concept of heterogeneous networks and also describe the major technical challenges associated with such network architecture. We focus in particular on the standardization activities within the 3GPP related to enhanced inter-cell interference coordination.
Guvenc Ismail
Kountouris Marios
la Roche Guillaume de
Lopez-Perez David
Quek Tony Q. S.
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