End-to-End Outage Minimization in OFDM Based Linear Relay Networks
发布时间:2024-03-02点击次数:
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DOI码:10.1109/TCOMM.2009.10.080223
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发表刊物:IEEE Transactions on Communications
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摘要:Multi-hop relaying is an economically efficient architecture for coverage extension and throughput enhancement in future wireless networks. OFDM, on the other hand, is a spectrally efficient physical layer modulation technique for broadband transmission. As a natural consequence of combining OFDM with multi-hop relaying, the allocation of per-hop subcarrier power and per-hop transmission time is crucial in optimizing the network performance. This paper is concerned with the end-to-end information outage in an OFDM based linear relay network. Our goal is to find an optimal power and time adaptation policy to minimize the outage probability under a long-term total power constraint. We solve the problem in two steps. First, for any given channel realization, we derive the minimum short-term power required to meet a target transmission rate. We show that it can be obtained through two nested bisection loops. To reduce computational complexity and signalling overhead, we also propose a sub-optimal algorithm.
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论文类型:期刊论文
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学科门类:工学
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一级学科:信息与通信工程
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卷号:57
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期号:10
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页面范围:3034-3044
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是否译文:否
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发表时间:2009-12-01
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收录刊物:SCI
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焦文华
职务:研究员、博导
主要任职:机器视觉与感知研究中心负责人
个人信息
- 教授
博士生导师
硕士生导师 - 教师拼音名称:jiaowenhua
- 电子邮箱:
- 入职时间:2021-07-17
- 所在单位:人工智能研究院
- 职务:研究员、博导
- 学历:博士研究生毕业
- 办公地点:中国矿业大学文昌校区科创一楼8层809-1室
- 性别:男
- 联系方式:wjiao@cumt.edu.cn
- 学位:工学博士学位
- 职称:教授
- 在职信息:在岗
- 主要任职:机器视觉与感知研究中心负责人
- 其他任职:西安电子科技大学
- 毕业院校:北京大学
曾获荣誉:
- 2014-10-20黑龙江省科技进步二等奖(2013)
- 2024-11-14江苏省科技进步三等奖(2023)
- 2013-03-09贝尔实验室杰出研究员(2012)
- 2021-09-09江苏省双创人才(2021)
- 2019-02-09国家重大人才工程入选(2019)
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