Experimental demonstration of SCMA-OFDM for passive optical network

Lin, Bangjiang; Tang, Xuan; Shen, Xiaohuan; Chen, Chen; Lin, Chun-Ting; Ghassemlooy, Zabih

doi:10.1016/j.yofte.2017.09.018

Cited by 18 publications

(3 citation statements)

References 21 publications

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“…The numbers of codebooks and PDML are 6 and 2 (i.e., C = 6, N = 2), respectively. Note, the codebooks adopted in this work can be found in [24]. At OLT, the generated codewords from the 6 data sources are superposed and spread over 4 subcarriers, see Fig.…”

Section: Experiments Setup and Resultsmentioning

confidence: 99%

“…In previous works, applications of PD-NOMA [23] and CD-NOMA [24] in PONs were experimentally demonstrated offering twice and 150% the data rate compared with OFDMA using the same bandwidth, respectively. Note, PD-NOMA can achieve improved sum rate in the case where the users experience different path losses (i.e., different signal to noise ratios (SNRs) at the receiver (Rx)).…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we extended our previous works [23,24] and propose a new NOMA scheme known as power-code division NOMA (PCD-NOMA) for the next generation PON, where ONUs are divided into a number of groups with ONUs in the same group with similar path losses and in the same power domain multiplexing layer (PDML) are allocated with different codebooks. At the Rx, the successive interference cancellation (SIC) together with the message passing algorithm (MPA) is used to remove the inter-user interference (IUI).…”

Section: Introductionmentioning

confidence: 99%

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Power-code division non-orthogonal multiple access scheme for next-generation passive optical networks

Lin

Ghassemlooy

et al. 2019

Opt. Express

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Advanced modulation and multiple access schemes with high spectral efficiencies are desirable to overcome the bandwidth limitation in low-cost optical and electrical devices to fulfill the high-data rate requirements in passive optical networks (PONs). We propose a non-orthogonal multiple access (NOMA) scheme, known as power-code division NOMA (PCD-NOMA), for the next-generation PON, where the optical network units (ONUs) are divided into several groups with similar path losses. The ONUs per groups are allocated in the same power domain multiplexing layer with different codebooks. We show by experimental demonstration that the proposed PCD-NOMA with a high spectral efficiency offers improved overall system performance and reduced required transmission power in the next-generation PON, particularly in flexible PON where ONUs have different path losses. For PON with a power difference loss of 14 dB, the reduced required transmission powers are 5 and 11 dB for downstream and upstream, respectively, compared with orthogonal frequency division multiple access.

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Section: Experiments Setup and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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