国家自然科学基金(61071090)

作品数：21被引量：528H指数：3
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相关作者：杨龙祥贾向东傅海阳朱洪波刘旭更多>>
相关机构：南京邮电大学西北师范大学南京航空航天大学更多>>
相关期刊：《The Journal of China Universities of Posts and Telecommunications》《电信科学》《电子科技大学学报》《Chinese Journal of Electronics》更多>>
相关主题：NETWORK_CODING物联网中继网络编码POWER_ALLOCATION更多>>
相关领域：电子电信自动化与计算机技术更多>>
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基于网络编码的双向中继系统节点选择及功率分配策略被引量：3
《南京邮电大学学报（自然科学版）》2013年第6期14-17,共4页楼思嘉 杨龙祥 
国家自然科学基金(61071090);国家科技重大专项(2011ZX03005-004-003;2010ZX03001-002-02;2009ZX03001-004-01;2009ZX03007-004);江苏省高校研究生科研创新计划(CXZZ11_0388;CXLX11_0404)资助项目
考虑在多个节点间的中继双向信道中,将中继分配和功率分配结合起来.每一对节点间的通信可以看做是通过一个中继的双向中继信道.中继使用网络编码同时向对应的节点发送信息.中继分配考虑了两种分配方案,第一种方案考虑到了所有节点对和...
关键词：协作通信 网络编码 双向中继信道 中继分配 功率分配 
JOINT LLR-CRC ERROR MITIGATION FOR TWO-WAY ADAPTIVE DENOISE-AND-FORWARD NETWORK CODING
《Journal of Electronics(China)》2013年第4期352-361,共10页Cheng Yulun Yang Longxiang 
Supported by the National 973 Programs (2013CB329104);the National Natural Science Foundations of China (No. 61071090, No. 61171093);the Postgraduate Innovation Programs of Scientific Research of Jiangsu Province (CXZZ11_0388);Jiangsu Province Natural Science Foundation Key Projects (11KJA510001);National Science and Technology Key Projects (2011ZX03005-004-003);Jiangsu 973 Projects (BK2011027)
Network Coding (NC) brings correlation between the coded signals from different sources, which makes the system more vulnerable to the decode error at relay. Conventional Cyclic Redundancy Code (CRC) has been implemen...
关键词：Network Coding （NC） Log-Likelihood Ratio （LLR） Cyclic Redundancy Code （CRC） Denoise-and-forward Pair-wise Error Probability （PEP） 
Impact of MAC frame length on energy efficiency in 6LowPAN
《The Journal of China Universities of Posts and Telecommunications》2013年第4期67-72,共6页CHEN Shou-ning YANG Long-xiang ZHAO Yu-juan LI Jing 
Supported by the National Natural Science Foundation of China (61071090, 61171093);the National Science and Technology Major Projects (2011ZX03005-004-003);the Innovation Project of SCI and Tech for College Graduates of Jiangsu Province (CXLX12_0475)
To reach necessary end-to-end connectivity between the Internet and wireless sensor networks （WSNs）, the Internet Engineering Task Force （IETF） IPv6 over low power wireless personal area network （6LowPAN） workin...
关键词：6LowPAN IEEE 802.15.4 unslotted CSMA/CA M/G/1 queuing system MAC frame length energy efficiency 
Low complexity power allocation for hybrid amplify-and-forward opportunistic relay ordering cooperation被引量：2
《The Journal of China Universities of Posts and Telecommunications》2013年第3期26-31,共6页CHENG Yu-lun YANG Long-xiang 
supported by the National Basic Research Program of China (2013CB329104);the National Natural Science Foundations of China (61071090, 61171093);the Postgraduate Innovation Programs of Jiangsu Scientific Research (CXZZ11_0388);the Natural Science Foundation Key Projects of Jiangsu (11KJA510001);the National Major Projects of Science and Technology (2011ZX03005-004-003);Jiangsu 973 Projects (BK2011027)
In this paper, to enhance the robustness against link imbalance, a hybrid cooperative protocol is proposed for amplify-and-forward （AF） opportunistic cooperation, where opportunistic relaying and multi-hop cooperati...
关键词：opportunistic cooperation MULTI-HOP RO AF power allocation 
LLR-AWARE SMART LINK-ADAPTIVE STRATEGY FOR DECODE-AND-FORWARD COOPERATIVE COMMUNICATION
《Journal of Electronics(China)》2013年第2期175-182,共8页Cheng Yulun Yang Longxiang 
Supported by the National Natural Science Foundationsof China(No.61071090,No.61171093);the Postgraduate Innovation Programs of Scientific Research of Jiangsu Province(CXZZ11_0388,CXLX11_0404);Jiangsu Province Natural Science Foundation Key Projects(11-KJA510001);National Science and Technology KeyProjects(2011ZX03005-004-003);Jiangsu 973 Projects(BK2011027)
Error propagation seriously degenerate the diversity order of Decode-and-Forward (DF) cooperative communication. To address this problem, a novel Log Likelihood Ratio (LLR)-based Link Adaptive Relaying (LAR) is propos...
关键词：Cooperative communication Adaptive transmission Log Likelihood Ratio (LLR) Diversity order Power efficiency 
Fairness-oriented physical layer network coding in cooperative multiple access channels due to MRC and SIC
《The Journal of China Universities of Posts and Telecommunications》2012年第6期45-51,共7页CHENG Yu-lun YANG Long-xiang 
supported by the National Natural Science Foundations of China(61071090, 61171093);the Postgraduate Innovation Programs of Jiangsu Scientific Research(CXZZ11_0388,CXLX11_0404);the Jiangsu Province Natural Science Foundation Key Projects(11KJA510001);the National Science and Technology Key Projects(2011ZX03005-004-003);Jiangsu 973 Projects(BK2011027)
This paper investigates the impacts of network coding （NC） on user fairness from the network perspective in multiple access channels. Firstly, simultaneous outage is exploited as the metric to evaluate user fairness...
关键词：cooperative system user fairness simultaneous outage MRC SIC 
PERFORMANCE ANALYSIS OF USER FAIR-BASED RELAY ADAPTIVE POWER ALLOCATION IN PHYSICAL-LAYER NETWORK CODING COOPERATION
《Journal of Electronics(China)》2012年第5期383-391,共9页Cheng Yulun Yang Longxiang 
Supported by the National Natural Science Foundations of China (No. 61071090, No. 61171093);the Postgraduate Innovation Programs of Scientific Research of Jiangsu Province (CXZZ11_0388, CXLX11_0404);Jiangsu Province Natural Science Foundation Key Projects (11K-JA510001);National Science and Technology Key Projects (2011ZX03005-004-003);Jiangsu 973 (BK20-11027)
Network Coding (NC) is an effective technology to enhance the cooperative system spectral efficiency. However, since it is network-oriented, the existing performance metric of single-user outage can not comprehensivel...
关键词：Power allocation COOPERATION Network Coding (NC) Common outage probability User fairness 
TD集群下行链路小区间干扰特性与抑制策略
《南京邮电大学学报（自然科学版）》2012年第3期10-15,共6页成聿伦 杨龙祥 
国家重点基础研究发展计划(973计划)(2007CB310607);国家高技术研究发展计划(863计划)(2009AA011302);国家科技重大专项(2009ZX03007-004);国家自然科学基金(61071090)资助项目
研究了多小区场景下TD-SCDMA集群系统下行链路的小区间干扰特性,综合大尺度与小尺度模型分析了其对同频同时隙下最大可用码道数的限制以及目标群组位置和邻小区负荷对链路的影响。对各种小区间干扰抑制算法进行了分析与仿真,仿真结果表...
关键词：TD-SCDMA 集群 小区间干扰 互相关门限 联合检测 
PRECODING AND DECODING DESIGN FOR TWO-WAY MIMO AF MULTIPLE-RELAY SYSTEM
《Journal of Electronics(China)》2012年第3期177-189,共13页Zhi Hui Yang Longxiang Zhu Hongbo 
Supported by the National Science and Technology Specific Project (2011ZX03005-004-003);the National Natural Science Foundation of China (No. 61071090, 61171093);973 Project of Jiangsu Province (BK2011027);the Project 11KJA510001 and PAPD;the Jiangsu Postgraduate Research Project (CXZZ11_0384)
In this paper, a joint precoding and decoding design scheme is proposed for two-way Multiple-Input Multiple-Output (MIMO) multiple-relay system. The precoding and decoding matrices are jointly optimized based on Minim...
关键词：Precoding and decoding design Iterative algorithm Two-way relaying Bit Error Rate (BER) Sum rate 
TWO-WAY DENOISE-AND-FORWARD NETWORK CODING OPPORTUNISTIC RELAYING AIMING AT MINIMIZING EUCLIDEAN DISTANCE IN MULTI-ACCESS PHASE
《Journal of Electronics(China)》2011年第4期433-443,共11页Jia Xiangdong Yang Longxiang Shao Shixiang 
Supported by the National Natural Science Foundations of China (No. 61071090,No. 61171093);the Postgraduate Innovation Programs of Scientific Research of Jiangsu Province (CX10B-184Z,CXZZ11_0388);the Project 11KJA510001 and PAPD
To exploit the effect of modulation schemes on the best relay selection,a novel Jointing Modulation schemes max-min criterion(JM-max-min) is proposed firstly for Two-Way De-Noise-and-Forward(DNF) Opportunistic Relayin...
关键词：Cooperative communications Opportunistic relaying Network coding Max-min crite-rion 
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