Pub Date : 2024-09-10DOI: 10.23919/comex.2024COL0021
Zin Mar Phyo;Takafumi Fujimoto;Chai-Eu Guan
This paper introduces a wideband MIMO (multiple input multiple output) antenna operating Sub 6 GHz 5G frequency band with circular polarization (CP). It comprises two identical printed monopole antennas (PMAs) with disconnected ground planes, spaced at $0:051 lambda_{0}$ ( $lambda_{0}$ is a free-space wavelength at lowest frequency). An inverted U-shaped parasitic element reduces the mutual coupling and improves the axial ratio (AR), while a substrate cavity reflector is installed to be completely CP antenna and increase the absolute gain in the boresight direction. The proposed antenna achieves a measured 10dB impedance and 3dB AR bandwidth of 46.58% (3.03 - 4.95 GHz) with a maximum gain of 5.39 dBic. Notably, polarization in the far-field can be switched between right-hand circular polarization (RHCP) and left-hand circular polarization (LHCP) by changing the exciting port. Experimental measurements validate the antenna's performance within the desirable frequency range.
{"title":"Wideband Circularly Polarized Two-Element MIMO Antenna with Polarization Diversity","authors":"Zin Mar Phyo;Takafumi Fujimoto;Chai-Eu Guan","doi":"10.23919/comex.2024COL0021","DOIUrl":"https://doi.org/10.23919/comex.2024COL0021","url":null,"abstract":"This paper introduces a wideband MIMO (multiple input multiple output) antenna operating Sub 6 GHz 5G frequency band with circular polarization (CP). It comprises two identical printed monopole antennas (PMAs) with disconnected ground planes, spaced at \u0000<tex>$0:051 lambda_{0}$</tex>\u0000 (\u0000<tex>$lambda_{0}$</tex>\u0000 is a free-space wavelength at lowest frequency). An inverted U-shaped parasitic element reduces the mutual coupling and improves the axial ratio (AR), while a substrate cavity reflector is installed to be completely CP antenna and increase the absolute gain in the boresight direction. The proposed antenna achieves a measured 10dB impedance and 3dB AR bandwidth of 46.58% (3.03 - 4.95 GHz) with a maximum gain of 5.39 dBic. Notably, polarization in the far-field can be switched between right-hand circular polarization (RHCP) and left-hand circular polarization (LHCP) by changing the exciting port. Experimental measurements validate the antenna's performance within the desirable frequency range.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"487-491"},"PeriodicalIF":0.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10675419","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-10DOI: 10.23919/comex.2024XBL0133
Takahiro Kodama;Gabriella Cincotti
A single-mode labeling approach is proposed for a mode-multiplexed OPS system, and the corresponding detection performances are evaluated as a function of the received power. We introduce the mode dimension to increase the number of labels that can be generated and processed by a single multiport E/D, and we analyze configurations with reduced intra-mode crosstalk. We show that the label error rate is significantly influenced by inter-mode crosstalk, being TE10 labels more susceptible to crosstalk from adjacent ports, than TE00 labels.
{"title":"Versatile Two-Mode ODFT-Based Labeling in Mode-Multiplexed Optical Packet Switching","authors":"Takahiro Kodama;Gabriella Cincotti","doi":"10.23919/comex.2024XBL0133","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0133","url":null,"abstract":"A single-mode labeling approach is proposed for a mode-multiplexed OPS system, and the corresponding detection performances are evaluated as a function of the received power. We introduce the mode dimension to increase the number of labels that can be generated and processed by a single multiport E/D, and we analyze configurations with reduced intra-mode crosstalk. We show that the label error rate is significantly influenced by inter-mode crosstalk, being TE10 labels more susceptible to crosstalk from adjacent ports, than TE00 labels.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 11","pages":"440-443"},"PeriodicalIF":0.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10675417","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-09-10DOI: 10.23919/comex.2024XBL0129
Che Huang;Hirotaka Ujikawa;Tomoya Hatano;Tatsuya Shimada;Tomoaki Yoshida
In use cases of IoT remote control, IoT applications such as image processing can be placed in the edge or cloud computing to reduce the cost of IoT devices. Additionally, end-to-end (E2E) communication quality including network quality and edge computing processing time is very important for IoT remote control. However, current measurement tools cannot measure the E2E quality directly when edge processing is involved. Therefore, the network quality and the processing time of edge applications need to be separately measured. Measuring the processing time of these applications requires not only modifications for each application in conventional methods but also complicated configuration work. Therefore, we propose a method to measure the processing time of edge applications by detecting packets embedded with unique identifiers, without requiring any configurations to applications. The implementation and evaluation results show that our method can accurately measure the processing time required on edge application.
{"title":"A Measurement Method Using Packets for Measuring the Processing Time of Edge and Cloud Applications","authors":"Che Huang;Hirotaka Ujikawa;Tomoya Hatano;Tatsuya Shimada;Tomoaki Yoshida","doi":"10.23919/comex.2024XBL0129","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0129","url":null,"abstract":"In use cases of IoT remote control, IoT applications such as image processing can be placed in the edge or cloud computing to reduce the cost of IoT devices. Additionally, end-to-end (E2E) communication quality including network quality and edge computing processing time is very important for IoT remote control. However, current measurement tools cannot measure the E2E quality directly when edge processing is involved. Therefore, the network quality and the processing time of edge applications need to be separately measured. Measuring the processing time of these applications requires not only modifications for each application in conventional methods but also complicated configuration work. Therefore, we propose a method to measure the processing time of edge applications by detecting packets embedded with unique identifiers, without requiring any configurations to applications. The implementation and evaluation results show that our method can accurately measure the processing time required on edge application.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 11","pages":"426-430"},"PeriodicalIF":0.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10675421","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The authors propose a mode conversion technique in a cavity-backed circularly polarized magneto-electric (ME) antenna in order to achieve a wide axial ratio (AR) beamwidth covering a wide frequency range. The proposed technique allows both the ME antenna element and the cavity structural parameters to be independent of each other, which would otherwise always be associated with each other. The proposed antenna demonstrated impedance bandwidth $(vert S_{11}vert leq-10text{dB})$ of 38.73% (1.52-2.25 GHz), 3-dB axial ratio bandwidth of 33.05% (1.49-2.08 GHz), and 3-dB AR beamwidth exceeding 214° in a single plane ( $xz$ or $yztext{-plane}$ ) across the operating band.
作者提出了一种腔背圆极化磁电（ME）天线的模式转换技术，以实现覆盖宽频率范围的宽轴比（AR）波束宽度。所提出的技术使 ME 天线元件和空腔结构参数相互独立，否则它们将始终相互关联。该天线的阻抗带宽为 38.73% (1.52-2.25 GHz)，3-dB 轴向比带宽为 33.05% (1.49-2.08 GHz)，3-dB AR 波束宽度在整个工作频带的单个平面（$xz$ 或 $yz/text{-plane}$）上超过 214°。
{"title":"Circularly Polarized Cavity-Backed Antenna with Variable Magneto-Electric Crossed-Dipole Structure","authors":"Phanuphong Boontamchauy;Makoto Sano;Ryuji Kuse;Takeshi Fukusako","doi":"10.23919/comex.2024XBL0119","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0119","url":null,"abstract":"The authors propose a mode conversion technique in a cavity-backed circularly polarized magneto-electric (ME) antenna in order to achieve a wide axial ratio (AR) beamwidth covering a wide frequency range. The proposed technique allows both the ME antenna element and the cavity structural parameters to be independent of each other, which would otherwise always be associated with each other. The proposed antenna demonstrated impedance bandwidth \u0000<tex>$(vert S_{11}vert leq-10text{dB})$</tex>\u0000 of 38.73% (1.52-2.25 GHz), 3-dB axial ratio bandwidth of 33.05% (1.49-2.08 GHz), and 3-dB AR beamwidth exceeding 214° in a single plane ( \u0000<tex>$xz$</tex>\u0000 or \u0000<tex>$yztext{-plane}$</tex>\u0000 ) across the operating band.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 11","pages":"421-425"},"PeriodicalIF":0.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10675422","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-12DOI: 10.23919/comex.2024TCF0001
This special cluster is primarily intended as a collection of extended research papers originally presented at the International Conference on Emerging Technologies for Communications (ICETC) 2023. The ICETC was inaugurated in 2020 and has since become the flagship conference of the IEICE Communications Society (IEICE-CS). The conference encompasses all research areas of the IEICE-CS and is designed to facilitate the generation of synergies between researchers from different technical fields. The fourth ICETC was held in Sapporo, Japan, in 2023, with a 100% face-to-face format and over 200 participants.
{"title":"Special Cluster in Emerging Communication Technologies in Conjunction with Main Topics of ICETC 2023","authors":"","doi":"10.23919/comex.2024TCF0001","DOIUrl":"https://doi.org/10.23919/comex.2024TCF0001","url":null,"abstract":"This special cluster is primarily intended as a collection of extended research papers originally presented at the International Conference on Emerging Technologies for Communications (ICETC) 2023. The ICETC was inaugurated in 2020 and has since become the flagship conference of the IEICE Communications Society (IEICE-CS). The conference encompasses all research areas of the IEICE-CS and is designed to facilitate the generation of synergies between researchers from different technical fields. The fourth ICETC was held in Sapporo, Japan, in 2023, with a 100% face-to-face format and over 200 participants.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 8","pages":"289-289"},"PeriodicalIF":0.3,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10634098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141973529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.23919/comex.2024XBL0117
Tomoya Yamaoka;Tadashi Oshima
Wavelet transform performs frequency transform with different time window widths to enable accurate time-frequency analysis for sensing. Time and frequency sampling of scalogram are not uniform to eliminate redundancy. One method achieves fine time sampling with fewer operations, but the frequency direction sampling is not uniform or fine, and sidelobes are high. To address these problems, this study proposes a simple wavelet transform with fine time and frequency sampling. The proposed method consists of phase multiplication and signal addition. Frequency transform of any time window width is possible by changing the additive width of the signal. Furthermore, by adding the results, wavelet transform using a triangular window that lowers sidelobes is realized using a small number of complex multiplication operations. When the proposed method is applied to a chirp waveform, the frequency transition of the signal could be finely confirmed.
{"title":"A Simple Wavelet Transform with Fine Time and Frequency Sampling","authors":"Tomoya Yamaoka;Tadashi Oshima","doi":"10.23919/comex.2024XBL0117","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0117","url":null,"abstract":"Wavelet transform performs frequency transform with different time window widths to enable accurate time-frequency analysis for sensing. Time and frequency sampling of scalogram are not uniform to eliminate redundancy. One method achieves fine time sampling with fewer operations, but the frequency direction sampling is not uniform or fine, and sidelobes are high. To address these problems, this study proposes a simple wavelet transform with fine time and frequency sampling. The proposed method consists of phase multiplication and signal addition. Frequency transform of any time window width is possible by changing the additive width of the signal. Furthermore, by adding the results, wavelet transform using a triangular window that lowers sidelobes is realized using a small number of complex multiplication operations. When the proposed method is applied to a chirp waveform, the frequency transition of the signal could be finely confirmed.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 10","pages":"397-400"},"PeriodicalIF":0.3,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10633230","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142377145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.23919/comex.2024XBL0121
Daichi Aoki;Wataru Imajuku
This paper investigates the impact of nonlinear optical effects on Time-Domain Single Carrier Index Modulation (TDSC-IM) optical signals in Wavelength Division Multiplexing-Passive Optical Network (WDM-PON) systems that use standard single-mode fibers. Simulations indicate that TDSC-IM optical signals with high peak-to-average power ratio (PAPR) can maintain sufficient signal-to-noise ratios (SNRs) in C-band transmission in optical delivery networks with standard single mode fibers, while O-band transmission suffers larger nonlinear effects. This paper demonstrates that the degradation in the SNRs of the 25 GBaud quaternary phase shift keying (QPSK) based TDSC-IM optical signals can be less than 1 dB for 8 wavelength channel WDM-PON systems with 50 GHz spacing.
本文研究了在使用标准单模光纤的波分复用-无源光网络（WDM-PON）系统中，非线性光学效应对时域单载波索引调制（TDSC-IM）光信号的影响。仿真结果表明，在使用标准单模光纤的光传输网络中，峰均功率比（PAPR）较高的 TDSC-IM 光信号在 C 波段传输中可以保持足够的信噪比（SNR），而 O 波段传输则会受到较大的非线性影响。本文证明，在间距为 50 GHz 的 8 波长信道 WDM-PON 系统中，基于四元相移键控（QPSK）的 25 GBaud TDSC-IM 光信号的信噪比衰减可小于 1 dB。
{"title":"Nonlinearity Tolerance of Time-Domain Single Carrier Index Modulation Signals in Optical Access Links","authors":"Daichi Aoki;Wataru Imajuku","doi":"10.23919/comex.2024XBL0121","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0121","url":null,"abstract":"This paper investigates the impact of nonlinear optical effects on Time-Domain Single Carrier Index Modulation (TDSC-IM) optical signals in Wavelength Division Multiplexing-Passive Optical Network (WDM-PON) systems that use standard single-mode fibers. Simulations indicate that TDSC-IM optical signals with high peak-to-average power ratio (PAPR) can maintain sufficient signal-to-noise ratios (SNRs) in C-band transmission in optical delivery networks with standard single mode fibers, while O-band transmission suffers larger nonlinear effects. This paper demonstrates that the degradation in the SNRs of the 25 GBaud quaternary phase shift keying (QPSK) based TDSC-IM optical signals can be less than 1 dB for 8 wavelength channel WDM-PON systems with 50 GHz spacing.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 10","pages":"405-408"},"PeriodicalIF":0.3,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10633222","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.23919/comex.2024COL0013
Yudai Suzuki;Xiaoyan Wang;Masahiro Umehira
CS (Chirp Sequence) radar plays a crucial role in the safety of autonomous driving. However, its widespread adoption increases the probability of wideband inter-radar interference, leading to miss-detection of targets. To address this problem, we utilize RNN (Recurrent Neural Network) and self-attention models to mitigate wideband interference in automotive radar systems and compare 12 different learning models in terms of SNR (Signal-to-Noise Ratio) and processing time.
{"title":"Comparison of Learning Models for Wideband Interference Mitigation in Automotive Chirp Sequence Radar Systems","authors":"Yudai Suzuki;Xiaoyan Wang;Masahiro Umehira","doi":"10.23919/comex.2024COL0013","DOIUrl":"https://doi.org/10.23919/comex.2024COL0013","url":null,"abstract":"CS (Chirp Sequence) radar plays a crucial role in the safety of autonomous driving. However, its widespread adoption increases the probability of wideband inter-radar interference, leading to miss-detection of targets. To address this problem, we utilize RNN (Recurrent Neural Network) and self-attention models to mitigate wideband interference in automotive radar systems and compare 12 different learning models in terms of SNR (Signal-to-Noise Ratio) and processing time.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"470-474"},"PeriodicalIF":0.3,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10633224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With the development of 5G technology and the proliferation of IoT devices, Deep Joint Source-Channel Coding (DeepJSCC) has attracted attention for efficiently transmitting video and image data. DeepJSCC can maintain a good peak signal-to-noise ratio (PSNR) of images even at a meager signal-to-noise ratio (SNR). In cellular communication systems, the compression ratio must adapt to channel fluctuations, requiring multiple training models at the base station. However, the optimal SNR and compression ratio combination during training has yet to be reported. This paper investigates the necessary number of training models by stepwise varying SNR and compression ratio during training.
{"title":"Impact of Training Models on Deep Joint Source-Channel Coding Applicable to 5G Systems","authors":"Ryunosuke Yamamoto;Keigo Matsumoto;Yoshiaki Inoue;Yuko Hara;Kazuki Maruta;Yu Nakayama;Daisuke Hisano","doi":"10.23919/comex.2024COL0014","DOIUrl":"https://doi.org/10.23919/comex.2024COL0014","url":null,"abstract":"With the development of 5G technology and the proliferation of IoT devices, Deep Joint Source-Channel Coding (DeepJSCC) has attracted attention for efficiently transmitting video and image data. DeepJSCC can maintain a good peak signal-to-noise ratio (PSNR) of images even at a meager signal-to-noise ratio (SNR). In cellular communication systems, the compression ratio must adapt to channel fluctuations, requiring multiple training models at the base station. However, the optimal SNR and compression ratio combination during training has yet to be reported. This paper investigates the necessary number of training models by stepwise varying SNR and compression ratio during training.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 12","pages":"466-469"},"PeriodicalIF":0.3,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10633225","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-09DOI: 10.23919/comex.2024XBL0124
Kaito Kubo;Amila Kariyawasam;Shunji Kimura
With the increasing demand for network services, the power consumption of equipment has been steadily rising each year, especially in the access network domain. Passive Optical Networks (PON) traditionally operate on the principle of ensuring service provision to the farthest user. Consequently, performance tends to be excessive for short to medium distances, leading to surplus power consumption. In this study, we address the issue of reducing power consumption in access networks by tackling surplus power. Our approach involves utilizing three different types of Reed-Solomon (RS) decoders to apply appropriate forward error correction (FEC) redundancy based on transmission distance, aiming to lower power consumption of RS decoders in optical network units (ONUs). Subsequently, we evaluated the power saving of FEC decoding in a 10G-class PON and report over 48% average power saving compared to the conventional homogeneous FEC-based network.
{"title":"Power Saving Control Method with Adaptive FEC Decoder in Optical Access Network","authors":"Kaito Kubo;Amila Kariyawasam;Shunji Kimura","doi":"10.23919/comex.2024XBL0124","DOIUrl":"https://doi.org/10.23919/comex.2024XBL0124","url":null,"abstract":"With the increasing demand for network services, the power consumption of equipment has been steadily rising each year, especially in the access network domain. Passive Optical Networks (PON) traditionally operate on the principle of ensuring service provision to the farthest user. Consequently, performance tends to be excessive for short to medium distances, leading to surplus power consumption. In this study, we address the issue of reducing power consumption in access networks by tackling surplus power. Our approach involves utilizing three different types of Reed-Solomon (RS) decoders to apply appropriate forward error correction (FEC) redundancy based on transmission distance, aiming to lower power consumption of RS decoders in optical network units (ONUs). Subsequently, we evaluated the power saving of FEC decoding in a 10G-class PON and report over 48% average power saving compared to the conventional homogeneous FEC-based network.","PeriodicalId":54101,"journal":{"name":"IEICE Communications Express","volume":"13 10","pages":"401-404"},"PeriodicalIF":0.3,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10633221","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142377147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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