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

Performance of quadrature amplitude modulation (QAM) schemes is analyzed withdual-hop decode-and-forward (DF) relaying systems over mixed $\eta$-$\mu$ and$\kappa$-$\mu$ fading channels. Closed-form expressions are obtained for theaverage symbol error rate (ASER) for general order rectangular QAM and crossQAM schemes using moment generating function based approach. Derivedexpressions are in the form of Lauricella's $(F_D^{(n)}(\cdot),\Phi_1^{(n)}(\cdot))$ hypergeometric functions which can be numericallyevaluated using either integral or series representation. The obtained ASERexpressions include other mixed fading channel cases addressed in theliterature as special cases such as mixed Hoyt, and Rice fading, mixedNakagami-$m$, and Rice fading. We further obtain a simple expression for theasymptotic ASER, which is useful to determine a factor governing the systemperformance at high SNRs, i.e., the diversity order. Additionally, we analyzethe optimal power allocation, which provides a practical design rule tooptimally distribute the total transmission power between the source and therelay to minimize the ASER. Extensive numerical and computer simulation resultsare presented that confirm the accuracy of presented mathematical analysis.

Performance of QAM Schemes with Dual-Hop DF Relaying Systems over Mixed $\eta$-$\mu$ and $\kappa$-$\mu$ Fading Channels