Multicell cooperation for LTE-advanced heterogeneous network scenarios

In this article we present two promising practical use cases for simple multicell cooperation for LTE-Advanced heterogeneous network scenarios with macro and small cells. For co-channel deployment cases, we recommend the use of enhanced interference coordination, or eICIC, to mitigate cross-tier int...

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Bibliographic Details
Published in:IEEE wireless communications 2013-02, Vol.20 (1), p.27-34
Main Authors: Soret, B., Hua Wang, Pedersen, K. I., Rosa, C.
Format: Article
Language:English
Subjects:
Agglomeration
Base stations
Carriers
Cellular networks
Cognitive radio
Cooperation
Heterogeneous networks
Interference
Long Term Evolution
Networks
Radio spectrum management
Stations
Studies
Terminals
Wireless communication
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Summary:In this article we present two promising practical use cases for simple multicell cooperation for LTE-Advanced heterogeneous network scenarios with macro and small cells. For co-channel deployment cases, we recommend the use of enhanced interference coordination, or eICIC, to mitigate cross-tier interference and ensure sufficient offload of users from macro to small cells. It is shown how the eICIC benefit is maximized by using a distributed inter-base station control framework for dynamic adjustment of essential parameters. Second, for scenarios where macro and small cells are deployed at different carriers an efficient use of the fragmented spectrum can be achieved by using collaborative inter-site carrier aggregation. In addition to distributed coordination/collaboration between base station nodes, the importance of explicit terminal assistance is highlighted. Comprehensive system-level simulation results illustrate the performance benefits of the presented techniques.
ISSN:1536-1284
1558-0687
DOI:10.1109/MWC.2013.6472196