Code-Hopping Based Communication Network Using Orthogonal Complementary Codes for Advanced Metering Infrastructure in Smart Grid

Judson, D.; Davix, X. Ascar

doi:10.1007/978-981-16-4625-6_102

Cited by 3 publications

(1 citation statement)

References 19 publications

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{\Phi}_l^{u^H}

represents Hermitian transpose of the channel and CFO matrix. The main merit behind using MMSE equalization is the reduction of MAI and noise 29 . The residual MAI exhibited at the MMSE equalizer output is minimal compared to other equalization schemes which are described in the performance analysis section.…”

Section: Equalization and Cfo Compensation In Dct Sc‐fdmamentioning

confidence: 99%

Low‐complexity joint equalization and CFO compensation in uplink SC‐FDMA NOMA system under different power allocation strategies

Judson

Portia

Livingston

2023

Trans Emerging Tel Tech

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In current wireless systems, the claim for rapid data services has become unavoidable in broadband communication. Single carrier frequency division multiple access (SC‐FDMA) has remained a multiple access (MA) technique with low peak‐to‐average power ratio (PAPR) in 4G systems. Non‐orthogonal multiple access (NOMA) is a complimentary MA technique in the fifth generation (5G) new radio with the capability of using similar frequency elements for multiuser communication within a single cellular system. In SC‐FDMA NOMA systems the carrier frequency offsets (CFO) destroy the orthogonal behavior in multiple carriers during transmission leading to inter‐carrier interference (ICI) and multiple access interference (MAI). Furthermore, the power allocated for each user in the NOMA cluster exhibits a noticeable part in enhancing the performance of the system. In this article, we propose a joint low‐complexity linear regularized zero forcing (JLC‐LRZF) for SC‐FDMA NOMA system and investigate its performance using discrete Fourier transform (DFT) and discrete cosine transform (DCT). The proposed JLC‐LRZF equalization algorithm is capable of performing equalization and CFO compensation with low‐complexity with banded‐matrix approximation (BMA). Additionally, we investigate the effectiveness of SC‐FDMA NOMA system in achieving improved performance with different values of CFO and power allocation policies in uniform random multipath channels.

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