Analysis of STAR-RIS Assisted Downlink CoMP-NOMA Multi-Cell Networks under Nakagami-m Fading

• In this letter, we conduct a thorough analytical assessment of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted non-orthogonal multiple access (NOMA) enhanced coordinated multipoint (CoMP) multi-cell network under Nakagami-m fading. Using the central limit theorem (CLT) and moment-matching based Gamma approximation method, we derive the distributions of effective and cascaded channel gains. Subsequently, leveraging these results, we formulate tractable equations for ergodic rates and outage probabilities across all users in the network. Our analytical results correlate with the simulation results, affirming the efficacy of analytical methodology. Furthermore, the results demonstrate a significant performance improvement of STAR-RIS assisted CoMP-NOMA networks compared to conventional systems. 

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)

Nyckelord

CoMP

ergodic rate

Fading channels

Gamma approximation

Gamma distribution

Method of moments

Nakagami-<italic xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">m</italic> fading

NOMA

outage probability

Power system reliability

Resource management

Signal to noise ratio

STAR-RIS

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