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

Non-orthogonal multiple access (NOMA) is a key to multiple access techniquesfor the next generation 5G wireless communication networks. In this paper, toimprove the performance gain of NOMA system, a cooperative fixeddecode-and-forward (DF) relay system model based on NOMA (CRS-NOMA) is studiedover Rician fading channels, considering the achievable rate of signals as theperformance metric. In this technique, by exploiting the concept of NOMA,unlike the conventional method of cooperative relaying, the second time slot isalso utilized for the realization of information sent from the transmitter end.Moreover, as the data symbols are transmitted by nodes with full power, thecompulsion of complex power allocation coefficients is precluded. Inconventional cooperative relaying systems, the receiver is only able to receivea single bit of information, while the receiver can reliably bring in two datasymbols in two-time slots. In this regard, this scheme is able to acquirehigher achievable rate performance than existing cooperative relaying schemesfor larger channel powers over most of the transmit SNR regime. Furthermore, amathematical expression is also derived for the total achievable rate ofCRS-NOMA. The results are verified through Monte-Carlo simulations whichvalidate accuracy and consistency of the derived analytical results.

Achievable Rate Analysis of Relay Assisted Cooperative NOMA over Rician Fading Channels