LACO-OFDM中位加载的最坏情况剩余裁剪噪声功率模型

Zhenyu Zhang, A. Chaaban, Chao Shen, H. Elgala, T. Ng, B. Ooi, Mohamed-Slim Alouini
{"title":"LACO-OFDM中位加载的最坏情况剩余裁剪噪声功率模型","authors":"Zhenyu Zhang, A. Chaaban, Chao Shen, H. Elgala, T. Ng, B. Ooi, Mohamed-Slim Alouini","doi":"10.23919/GLC.2018.8319113","DOIUrl":null,"url":null,"abstract":"Layered ACO-OFDM enjoys better spectral efficiency than ACO-OFDM, but its performance is challenged by residual clipping noise (RCN). In this paper, the power of RCN of LACO-OFDM is analyzed and modeled. As RCN is data-dependent, the worst-case situation is considered. A worst-case indicator is defined for relating the power of RCN and the power of noise at the receiver, wherein a linear relation is shown to be a practical approximation. An LACO-OFDM bit-loading experiment is performed to examine the proposed RCN power model for data rates of 6 to 7 Gbps. The experiment's results show that accounting for RCN has two advantages. First, it leads to better bit loading and achieves up to 59% lower overall bit-error rate (BER) than when the RCN is ignored. Second, it balances the BER across layers, which is a desired property from a channel coding perspective.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2018-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Worst-case residual clipping noise power model for bit loading in LACO-OFDM\",\"authors\":\"Zhenyu Zhang, A. Chaaban, Chao Shen, H. Elgala, T. Ng, B. Ooi, Mohamed-Slim Alouini\",\"doi\":\"10.23919/GLC.2018.8319113\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Layered ACO-OFDM enjoys better spectral efficiency than ACO-OFDM, but its performance is challenged by residual clipping noise (RCN). In this paper, the power of RCN of LACO-OFDM is analyzed and modeled. As RCN is data-dependent, the worst-case situation is considered. A worst-case indicator is defined for relating the power of RCN and the power of noise at the receiver, wherein a linear relation is shown to be a practical approximation. An LACO-OFDM bit-loading experiment is performed to examine the proposed RCN power model for data rates of 6 to 7 Gbps. The experiment's results show that accounting for RCN has two advantages. First, it leads to better bit loading and achieves up to 59% lower overall bit-error rate (BER) than when the RCN is ignored. Second, it balances the BER across layers, which is a desired property from a channel coding perspective.\",\"PeriodicalId\":150652,\"journal\":{\"name\":\"2018 Global LIFI Congress (GLC)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-03-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2018 Global LIFI Congress (GLC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/GLC.2018.8319113\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 Global LIFI Congress (GLC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/GLC.2018.8319113","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6

摘要

分层ACO-OFDM具有比ACO-OFDM更好的频谱效率,但其性能受到残余裁剪噪声(RCN)的挑战。本文对LACO-OFDM的RCN功率进行了分析和建模。由于RCN依赖于数据,因此考虑了最坏情况。定义了一个最坏情况指标,用于将RCN功率与接收机的噪声功率联系起来,其中线性关系被证明是一个实用的近似值。通过LACO-OFDM位加载实验,对数据速率为6 ~ 7gbps的RCN功率模型进行了验证。实验结果表明,计算RCN有两个优点。首先,与忽略RCN相比,它可以带来更好的比特加载,并实现高达59%的总误码率(BER)降低。其次,它平衡了跨层的误码率,从信道编码的角度来看,这是一个理想的特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Worst-case residual clipping noise power model for bit loading in LACO-OFDM
Layered ACO-OFDM enjoys better spectral efficiency than ACO-OFDM, but its performance is challenged by residual clipping noise (RCN). In this paper, the power of RCN of LACO-OFDM is analyzed and modeled. As RCN is data-dependent, the worst-case situation is considered. A worst-case indicator is defined for relating the power of RCN and the power of noise at the receiver, wherein a linear relation is shown to be a practical approximation. An LACO-OFDM bit-loading experiment is performed to examine the proposed RCN power model for data rates of 6 to 7 Gbps. The experiment's results show that accounting for RCN has two advantages. First, it leads to better bit loading and achieves up to 59% lower overall bit-error rate (BER) than when the RCN is ignored. Second, it balances the BER across layers, which is a desired property from a channel coding perspective.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信