English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Small-cell densification is a strategy enabling the offloading of users frommacro base stations (MBSs), in order to alleviate their load and increase thecoverage, especially, for cell-edge users. In parallel, as the networkincreases in density, the BS cooperation emerges as an efficient design methodtowards the demands for drastic improvement of the system performance againstthe detrimental overall interference. In addition, the tiers are enhanced withcell association policies by introducing the concept of the associationprobability. Above this and motivated by the advantages of cooperation amongBSs, the small base stations (SBSs) are enriched with this property in theirdesign. SBS cooperation allows shedding light into its impact on the cellselection rules in multi-antenna HetNets. Under these settings,software-defined networking (SDN) is introduced smoothly to play the leadingrole in the orchestration of the network. {In particular, heavy operations suchas the coordination and the cell association are undertaken by virtue of an SDNcontroller performing and managing efficiently the corresponding computationsdue to its centralized adaptability and dynamicity towards the enhancement andpotential scalability of the network}. In this context, we derive the coverageprobability and the mean achievable rate. Not only we show the outperformanceof BS cooperation over uncoordinated BSs, but we also demonstrate that the SBScooperation enables the admittance of more users from the macro-cell BSs(MBSs). Moreover, we investigate the performance of different transmissiontechniques, and we identify the optimal bias in each case when SBSs cooperate.Finally, we depict that the SBS densification is beneficial until a specificdensity value since a further increase does not increase the coverageprobability.

SDN-enabled MIMO Heterogeneous Cooperative Networks with Flexible Cell Association