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

The combination of backscatter communication with non-orthogonal multipleaccess (NOMA) has the potential to support low-powered massive connections inupcoming sixth-generation (6G) wireless networks. More specifically,backscatter communication can harvest and use the existing RF signals in theatmosphere for communication, while NOMA provides communication to multiplewireless devices over the same frequency and time resources. This paper hasproposed a new resource management framework for backscatter-aided cooperativeNOMA communication in upcoming 6G networks. In particular, the proposed workhas simultaneously optimized the base station's transmit power, relaying node,the reflection coefficient of the backscatter tag, and time allocation underimperfect successive interference cancellation to maximize the sum rate of thesystem. To obtain an efficient solution for the resource management framework,we have proposed a combination of the bisection method and dual theory, wherethe sub-gradient method is adopted to optimize the Lagrangian multipliers.Numerical results have shown that the proposed solution provides excellentperformance. When the performance of the proposed technique is compared to abrute-forcing search technique that guarantees optimal solution however, isvery time-consuming, it was seen that the gap in performance is actually 0\%.Hence, the proposed framework has provided performance equal to a cumbersomebrute-force search technique while offering much less complexity. The works inthe literature on cooperative NOMA considered equal time distribution forcooperation and direct communication. Our results showed that optimizing thetime-division can increase the performance by more than 110\% for hightransmission powers.

Cooperative Backscatter NOMA with Imperfect SIC: Towards Energy Efficient Sum Rate Maximization in Sustainable 6G Networks