DF Cooperative-NOMA Scheme in Presence of SIC Errors for Ubiquitous Coverage

Soni, Sandhya; Jain, Monika; Rawal, Divyang; Sharma, Nikhil

doi:10.1109/ants47819.2019.9117994

Cited by 4 publications

(9 citation statements)

References 11 publications

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“…End-to-end average symbol error probability (ASEP) performance over power allocation factor (Ω) for BPSK-BPSK modulation set with K NU = 2, K FU = 0, and SNR = {10, 20, 30}dB K FU = 0 over mixed fading and shows the Ω opt values of 0.231, 0.15, and 0.132, respectively, whereas it is 0.3 for 10 dB SNR 25 across Rayleigh faded links. This verifies the increased performance of the considered dual-hop system over mixed fading.…”

Section: F I G U R Ementioning

confidence: 99%

“…Without loss of generality, it is assumed that the channel condition for NU is better than the FU. In phase-I, the transmission of symbols (x mod ) take place between BS to relay based on the different modulation sets for two NOMA users simultaneously, that is, 4-PAM 25 and 8-QAM, 26 respectively, for BPSK-BPSK and QPSK-BPSK modulation schemes, and the signal received (y R ) at the relay is given as…”

Section: System Modelmentioning

confidence: 99%

“…In phase‐I, the transmission of symbols

(x_{mod})

take place between BS to relay based on the different modulation sets for two NOMA users simultaneously, that is, 4‐PAM 25 and 8‐QAM, 26 respectively, for BPSK‐BPSK and QPSK‐BPSK modulation schemes, and the signal received

(y_{R})

at the relay is given as

y_{R} = h_{R} \sqrt{P_{S}} x_{mod} + n_{R},

where

h_{R}

is the Rayleigh faded channel coefficient for BS to relay link,

P_{S}

is the power at BS and

n_{R} \sim 𝒞 𝒩 (0, N_{0})

is the additive white Gaussian noise (AWGN).…”

Section: System Modelmentioning

confidence: 99%

“…The BS‐relay link is assumed to be Rayleigh distributed. For BPSK‐BPSK NOMA transmission, the ASEP for 4‐PAM over a Rayleigh fading channel is given as follows follows 25 (eq.11)

{\overset{true‾}{P}}_{1} (e) = \frac{3}{4} (1 - ρ_{1}),

where

ρ_{1} = \sqrt{\frac{γ_{1}}{2 + γ_{1}}}

and

γ_{1} = \frac{2 E_{s}}{5 N_{0}}

. Similarly, for QPSK‐BPSK NOMA transmission, the ASEP for 8‐QAM is given as follows 26 (eq.11)

{\overset{true‾}{P}}_{2} (e) = \frac{5}{4} (1 - ρ_{2}),

where

ρ_{2} = \sqrt{\frac{γ_{2}}{2 + γ_{2}}}

and

γ_{2} = \frac{E_{s}}{3 N_{0}}

.…”

Section: Performance Analysismentioning

confidence: 99%

“…For FU, the ASEP expression will remain the similar to (21) except

ω_{j_{1}} = \frac{2 {(\sqrt{P_{2}} + {(- 1)}^{j_{1}} \sqrt{P_{1}})}^{2}}{N_{0}} {|z_{2}|}^{2}

, as there is no modification in the signal space. While applying the same approach of conditional error of correct and erroneous detection of FU symbols, the ASEP expression at NU for BPSK transmission in terms of Q ‐function is given in Reference 25 (eq.23) as

{\overset{true‾}{P}}_{NU}^{BPSK} = \int_{0}^{\infty} P (e | ω_{3}) f_{ω_{3}} (ω_{3}) d ω_{3} + \sum_{j_{2} = 4}^{5} \frac{{(- 1)}^{j_{2} - 1}}{2} \int_{0}^{\infty} P (e | ω_{j_{2}}) f_{ω_{j_{2}}} (ω_{j_{2}}) d ω_{j_{2}} + \sum_{j_{3} = 6}^{7} \frac{{(- 1)}^{j_{3} - 1}}{2} \int_{0}^{\infty} P

…”

Section: Performance Analysismentioning

confidence: 99%

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Performance analysis of non‐orthogonal multiple access assisted cooperative maritime communication system over two‐wave with diffuse power fading

Makkar

Soni

Rawal

et al. 2022

Trans Emerging Tel Tech

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Non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) communication are two promising technologies to fulfill the high throughput and reliable communication requirements. Maritime communication systems use a generalized fading at near-sea-surface channels (for seashore to ship/boat/fishing fleet communication) to provide reliable communication due to atmospheric turbulence. Experimental research on generalized two-wave diffuse power (TWDP) fading reveal the footprints of mmWave. This article proposes novel exact and asymptotic closed-form expressions of average symbol error probability (ASEP) of NOMA users for cooperative maritime communication systems over TWDP fading with the different modulations. The end-to-end closed-form expressions are derived in terms of Appell's and Lauricella's hypergeometric functions. Also, the ASEP is shown using the power allocation factor for different modulation schemes. The proposed system provides better transmission reliability using generalized TWDP fading. Further, the outage probability of the system described above is analyzed using the distance, path loss exponent, transmission rate, and Rician factor as performance metrics for both the NOMA users. Effects of fading outage parameters on the system performance are studied. The end-to-end exact numerical results have been verified with the Monte-Carlo simulations that validate with asymptotic results at a high SNR regime.

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Section: F I G U R Ementioning

confidence: 99%

Section: System Modelmentioning

confidence: 99%

“…In phase‐I, the transmission of symbols

(x_{mod})

(y_{R})

at the relay is given as

y_{R} = h_{R} \sqrt{P_{S}} x_{mod} + n_{R},

where

h_{R}

is the Rayleigh faded channel coefficient for BS to relay link,

P_{S}

is the power at BS and

n_{R} \sim 𝒞 𝒩 (0, N_{0})

is the additive white Gaussian noise (AWGN).…”

Section: System Modelmentioning

confidence: 99%

“…The BS‐relay link is assumed to be Rayleigh distributed. For BPSK‐BPSK NOMA transmission, the ASEP for 4‐PAM over a Rayleigh fading channel is given as follows follows 25 (eq.11)