江涛
基于OFDM技术的新兴通信系统的理论和关键技术研究、车载无线通信系统、基于未来动态频谱规划网络的认知无线接入技术、无线传感器网络和基于片上的纳米网络通信等。
个性化签名
- 姓名:江涛
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学术头衔:
博士生导师, 教育部“新世纪优秀人才支持计划”入选者
- 职称:-
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学科领域:
发酵工程
- 研究兴趣:基于OFDM技术的新兴通信系统的理论和关键技术研究、车载无线通信系统、基于未来动态频谱规划网络的认知无线接入技术、无线传感器网络和基于片上的纳米网络通信等。
江涛,1997年6月毕业于中国地质大学(汉),获应用地球物理专业的学士学位;2000年6月毕业于中国地质大学(汉),获地球探测与信息技术专业的硕士学位;2004年6月毕业于华中科技大学,获信息与通信工程专业的博士学位。自2004年8月至2007年12月,先后在英国布鲁内尔大学和美国密歇根大学等工作。2008年1月,作为重点人才引进,被华中科技大学和武汉光电国家实验室直聘为教授,是中国移动通信集团设计院特聘研究员。自2008年起,先后访问了美国科罗拉多大学和香港科技大学等。
自2005年来,已参编或主编了6本专著;在IEEE Transactions/Magazine等国际权威期刊和国际会议上发表了60余篇英文论文,其中SCI收录20多篇(第一作者/通讯作者16篇,3篇论文被IEEE Transactions/Magazine直接录用,1篇作为封面介绍)。论文被引用已达200多次,单篇引用次数达70多次。获2009年中国通信大会(CHINACOM)最佳论文奖。2009年国家无线通信与信号处理大会(WCSP)最佳论文奖。2005年获湖北省优秀博士论文,2008入选国家“新世纪优秀人才计划”资助,入选2008年度湖北省“楚天学者”称号。2008年至2009年,以项目负责人的身份承担的主要项目有:国家自然科学基金1项、863重点项目1项、新世纪优秀人才支持计划1项和博士点新教师基金1项。
目前,受邀担任5种等国际期刊的编委;自2005年以来,一直是15种IEEE 学报/杂志包括IEEE学报等在内27种国际期刊的长期和特约审稿人,也一直是包括INFOCOM和GLOBECOM等在内的28种国际会议的技术委员会委员并担任部分副主席,受邀担任2010年世界无线通信与移动计算(IWCMC)信息分会主席。是国家自然科学基金、教育部等项目的评审专家。中国科学(E辑)、电子学报、通信学报、清华大学学报、电子科技大学学报、浙江大学学报等审稿人,是浙江大学等多所大学博士论文的匿名评审专家。
主要的研究内容包括:基于OFDM技术的新兴通信系统的理论和关键技术研究、车载无线通信系统、基于未来动态频谱规划网络的认知无线接入技术、无线传感器网络和基于片上的纳米网络通信等。
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主页访问
1982
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关注数
0
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成果阅读
168
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成果数
4
【期刊论文】Distributed Adaptive Power Allocation for Wireless Relay Networks
江涛, Yonghui Li, Member, IEEE, Branka Vucetic, Fellow, Zhendong Zhou, and Mischa Dohler
,-0001,():
-1年11月30日
In this paper, we consider a 2-hop wireless diversity relay network. We explore transmit power allocation among the source and relays to maximize the received signal to noise ratio (SNR) at the destination. We consider two relay protocols," amplify and forward" (AAF) and" decode and forward" (DAF) and design the respective power allocations for both uncoded and coded systems. For a 2-hop relay system with one relay node, we derive a closed-form power allocation solution and, based on it, we propose a relay activation condition. If and only if the fading channel coefficients satisfy this condition, the relay transmits the signals to the destination; otherwise, the relay will stay in the idle state. For a system with more than one relay node, general closed-form power allocation solutions based on an extact SNR expression are difficult to derive; we hence, calculate a SNR upper bound and derive a sub-optimum power allocation solution based on this bound. The simulation results show that for a 2-hop diversity relay channel with one relay node the proposed adaptive power allocation (APA) scheme yields about 1−2dB SNR gains compared to the equal power allocation. This SNR gain increases monotonically as the number of relays increases.
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【期刊论文】Multicast Broadcast Services Support in OFDMA-Based WiMAX Systems
江涛, Tao Jiang and Weidong Xiang, Hsiao-Hwa Chen, Qiang Ni
,-0001,():
-1年11月30日
Multimedia stream service provided by broadband wireless networks has emerged as an important technology and has attracted much attention recently. An all-IP network architecture with reliable high-throughput air interface makes orthogonal frequency division multiplexing access (OFDMA)-based mobile worldwide interoperability for microwave access (mobileWiMAX) a viable technology for wireless multimedia services, such as voice over IP (VoIP), mobile TV, and so on. One of the main features in a WiMAX MAC layer is that it can provide differentiated services among different traffic categories with individual QoS requirements. In this article, we first give an overview of the key aspects of WiMAX and describe multimedia broadcast multicast service (MBMS) architecture of the 3GPP. Then, we propose a multicast and broadcast service (MBS) architecture for WiMAX that is based on MBMS. Moreover, we enhance the MBS architecture for mobile WiMAX to overcome the shortcoming of limited video broadcast performance over the baseline MBS model. We also give examples to demonstrate that the proposed architecture can support better mobility and offer higher power efficiency.
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127下载
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【期刊论文】Investigation of Bandwidth Request Mechanisms under Point-to-Multipoint Mode of WiMAX Networks
江涛, Qiang Ni, Alexey Vinel, Yang Xiao, Andrey Turlikov, Tao Jiang
,-0001,():
-1年11月30日
The WiMAX standard specifies a metropolitan area broadband wireless access air interface. In order to support QoS for multimedia applications, various bandwidth request and scheduling mechanisms are suggested in WiMAX, in which a subscriber station can send request messages to a base station, and the base station can grant or reject the request according to the available radio resources. This article first compares two fundamental bandwidth request mechanisms specified in the standard, random access vs. polling under the point-to-multipoint mode, a mandatory transmission mode. Our results demonstrate that random access outperforms polling when the request rate is low. However, its performance degrades significantly when thechannel is congested. Adaptive switching between random access and polling according to load can improve system performance. We also investigate the impact of channel noise on the random access request mechanism.
Doping, Infra-red spectroscopy, Optical absorption, Tetrahedral amorphous carbon
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江涛, Tao Jiang, Wenbing Yao, Peng Guo, Yonghua Song, and Daiming Qu
,-0001,():
-1年11月30日
Companding transform is an efficient and simple method to reduce the Peak-to-Average Power Ratio (PAPR) for Multi-Carrier Modulation (MCM) systems. But if the MCM signal is only simply operated by inverse companding transform at the receiver, the resultant spectrum may exhibit severe in-band and out-of-band radiation of the distortion components, and considerable peak regrowth by excessive channel noises etc. In order to prevent these problems from occurring, in this paper, two novel nonlinear companding schemes with a iterative receiver are proposed to reduce the PAPR. By transforming the amplitude or power of the original MCM signals into uniform distributed signals, the novel schemes can effectively reduce PAPR for different modulation formats and sub-carrier sizes. Despite moderate complexity increasing at the receiver, but it is especially suitable to be combined with iterative channel estimation. Computer simulation results show that the proposed schemes can offer good system performances without any bandwidth expansion.
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