Cross-tier interference-aware uplink scheduling over non-ideal backhaul

Interference coordination is a critical enabler of heterogeneous networks. In this paper we present a scheduling cooperation scheme that coordinates the resource allocation and user assignment across layers. The proposed scheme focuses on mitigating the interference generated by macro-associated use...

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Bibliographic Details
Published inIEEE International Symposium on Personal, Indoor, and Mobile Radio Communications workshops (Print) pp. 1099 - 1103
Main Authors Haibo Wang, Zhenning Shi, Liang Liu, Bin Shao
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2014
Subjects
Channel estimation
Gain
Interference
Macrocell networks
Performance gain
Throughput
Uplink
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ISSN2166-9570
DOI10.1109/PIMRC.2014.7136331

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Summary:Interference coordination is a critical enabler of heterogeneous networks. In this paper we present a scheduling cooperation scheme that coordinates the resource allocation and user assignment across layers. The proposed scheme focuses on mitigating the interference generated by macro-associated users in the proximity of small cells by exchanging the information of user assignment on the severely-interfered spectrum. Users that are most resilient to the macro-introduced interference are selected for transmission on the shared channel. In legacy networks the coordination scheme is subject to back haul latency restriction on the inter-node signalling. We then present an enhanced scheduler based on predicted channel conditions to improve the system performance in the presence of non-ideal back hauls.
ISSN:2166-9570
DOI:10.1109/PIMRC.2014.7136331