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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Device-to-Device communication (D2D) is a promising technique for improving fifth-generation cellular network (5G) spectrum and energy efficiency. However, limited user power and co-channel interference make designing an energy efficient D2D communication a difficult task. In this paper, a novel framework is proposed to optimize the energy efficiency of D2D communication coexisting with a heterogeneous network (HetNet) in downlink transmission. This optimization problem is mathematically formulated in terms of mode selection, power control, and resources allocation (i.e., NP-hard problem). The optimization fraction problem is simplified based on network load and is solved using different optimization methods. An innovative dynamic mode selection based on Fuzzy clustering is introduced. Proposed scheme performance is evaluated and compared to the standard algorithm. Simulation demonstrated the advantage of the proposed framework in terms of gain performance in both energy efficiency and number of successfully connected D2D users. Moreover, D2D communication improves energy efficiency of the heterogeneous network of Downlink transmission.

Energy Efficiency Optimization and Dynamic Mode Selection Algorithms for D2D Communication Under HetNet in Downlink Reuse