6533b838fe1ef96bd12a4f9e

RESEARCH PRODUCT

Analysis of interference avoidance with load balancing in heterogeneous cellular networks

Lei JiaoZiaul Haq AbbasFazal Muhammad

subject

Computer sciencebusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS05 social sciencesDuplex (telecommunications)050801 communication & media studies020206 networking & telecommunications02 engineering and technologySpectral efficiencyLoad balancing (computing)Frequency allocation0508 media and communicationsTelecommunications link0202 electrical engineering electronic engineering information engineeringCellular networkbusinessComputer network

description

In heterogeneous cellular networks (HCNets) smallcells are overlaid with macro-cells to handle heavy cellular data traffic in an efficient way. To achieve fast and reliable access to data with a better coverage it is necessary to offload users to the underutilized small-cells from the congested macro-cells. Sharing of the same licensed frequency spectrum by smallcells and macro-cells results in heavy cross-tier interference which significantly affects the downlink SINR. In this paper, we investigate and analyze a joint frequency-division duplex based cross-tier complementary spectrum sharing technique which is also regarded as reverse frequency allocation (RFA) scheme with load balancing. This scheme mitigates inter-cell interference (ICI) and better balances the load across the network. It also guarantees enhanced spectral efficiency and coverage probability, particularly for cell edge users (CEUs). Numerical results indicate that load balancing together with RFA is necessary to enhance the coverage of CEU in co-channel HCNets.

yearjournalcountryeditionlanguage
2016-09-012016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
https://doi.org/10.1109/pimrc.2016.7794897