检索结果-内蒙古大学图书馆

2nd IEEE International Conference on Wireless Communications, Signal Processing and networking (WiSPNET)

作者： Rajesh, R. Velmurugan, P. G. S. Thiruvengadam, S. J. Mallick, P. S. VIT Univ Sch Elect Engn Vellore Tamil Nadu India TCE Dept Elect & Commun Engn Madurai Tamil Nadu India

ISBN: (纸本)9781509044429

In this paper, physical layer network coding (PLNC) based bidirectional Decode and Forward (DF) relay network is proposed using Spatial Modulated Full Duplex (SMFD) nodes. In the proposed network, the source nodes exchange two bits of information in single time slot. The Most Significant Bit (MSB) of the data symbol is used for transmit antenna selection and LSB is transmitted by the selected transmit antenna. The self-interference at the SMFD nodes are modeled as Gaussian and its variance is based on thermal noise power. Analytical expressions are derived for upper and lower bound end-to-end outage probabilities of the proposed network in Rayleigh fading environment. The outage performance of the proposed network is better than the conventional PLNC based bidirectional full duplex (CFD) relay networks.

关键词： physical layer network coding spatial modulated full duplex decode and forward thermal noise power

来源：评论

学校读者我要写书评

暂无评论

Bi-Directional Multi-Hop Wireless Pipeline Using physical-layer network coding

引用

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2017年第12期16卷 7950-7965页

作者： Zhang, Haoyuan Cai, Lin Univ Victoria Dept Elect & Comp Engn Victoria BC V8P 5C2 Canada

In this paper, the design of multi-hop physical layer network coding (PNC) is investigated. In the existing multi-hop PNC designs, the effects of error propagation and mutualinterference are not well addressed. Error propagation refers to that the estimation error at any node may propagate to the neighboring nodes, which may result in serious end-to-end bit errors. The impact of the mutual-interference from other transmitting nodes to a receiver determines the upper bound SINR of two neighboring nodes given end-to-end SNR. By carefully addressing these issues, we propose two multi-hop PNC designs, the direct multi-hop PNC (D-MPNC) and the stored multi-hop PNC (S-MPNC), where both designs achieve the throughput upper bound of one symbol per symbol duration, which is the same as that of the traditional PNC with a single relay. There is a tradeoff between the applications of D-MPNC and S-MPNC, which targets for simple-implementation and optimal end-to-end bit error rate (BER), respectively. We provide the detailed designs of D-MPNC and S-MPNC and obtain the end-to-end BER bounds theoretically. Extensive simulation results demonstrate the performance gain of the proposed multi-hop PNC compared with the traditional PNC in terms of end-to-end BER and end-to-end throughout.

关键词： physical layer network coding multi-hop error propagation

来源：评论

学校读者我要写书评

暂无评论

Cellular-Aided Device-to-Device Communication: The Benefit of physical layer network coding

引用

IEEE COMMUNICATIONS LETTERS 2016年第11期20卷 2324-2327页

作者： Jeon, Sang-Woon Choi, Sang Won Kim, Juyeop Shin, Won-Yong Andong Natl Univ Dept Informat & Commun Engn Andong 36729 South Korea Korea Railrd Res Inst ICT Convergence New Technol Res Team Uiwang 16105 South Korea Korea Railrd Res Inst Adv Signaling & Commun Res Team Uiwang 16105 South Korea Dankook Univ Dept Comp Sci & Engn Yongin 16890 South Korea

We introduce a cellular-aided device-to-device (D2D) communication model in which two D2D transmitters (Txs) send independent messages W-1 and W-2 to their intended D2D receivers (Rxs) with the help of a base station (BS). Specifically, at the first phase, two Txs send their signals to both the BS and two Rxs and then at the second phase the BS sends its signal to the Rxs. We consider a feasible channel assumption that D2D channels are not always available at the BS and each Tx, thus resulting in an outage. For the proposed cellular-aided D2D scheme, the Txs send their messages via physical layer network coding, and thus, the BS is able to decode W-1 circle plus W-2 and broadcasts it to the Rxs. In consequence, from the fact that an outage does not occur if each Rx can decode W-1 or W-2 from its D2D links, the outage probability is significantly reduced compared with the D2D only communication where each Rx needs to decode its own message

关键词： D2D communication physical layer network coding outage capacity cellular networks

来源：评论

学校读者我要写书评

暂无评论

Outage Performance of Full Duplex physical layer network coding Systems in Nakagami-m Channels 24

Outage Performance of Full Duplex Physical Layer Network Cod...

引用

24th Signal Processing and Communication Application Conference (SIU)

作者： Koc, Asil Altunbas, Ibrahim Yongacoglu, Abbas Istanbul Tech Univ Elekt & Haberleme Muhendisligi Bolumu Istanbul Turkey Univ Ottawa Sch Elect Engn & Comp Sci Ottawa ON Canada

ISBN: (纸本)9781509016792

In this paper, outage performance of full duplex physical layer network coding systems under residual self-interference over Nakagami-m fading channels is investigated. physical layer network coding technique and amplify-and-forward method with variable-gain relaying are used at the relay node of the proposed system. End-to-end signal-to-interference-plus-noise-ratio is derived for the equal power transmission at the source and relay nodes. The outage probability expression is obtained in a single-integral form by using cumulative distribution function approach. The analytical results are verified by Monte-Carlo simulations.

关键词： Full duplex communication physical layer network coding Nakagami-m cooperative communication outage performance

来源：评论

学校读者我要写书评

暂无评论

Forward Error Correction with physical layer network coding in Two-way Relay Free Space Optical Links 8

Forward Error Correction with Physical Layer Network Coding ...

引用

8th Computer Science and Electronic Engineering (CEEC)

作者： Abu Almaalie, Zina Ghassemlooy, Z. Al-Rubaie, Alaa A. S. Lee, It Ee Le-Minh, Hoa Northumbria Univ Fac Engn & Environm NCRLab Opt Commun Res Grp Newcastle Upon Tyne Tyne & Wear England Minist Higher Educ & Sci Res Reconstruct & Projects Directorate Baghdad Iraq Multimedia Univ Fac Engn Cyberjaya 63100 Malaysia

ISBN: (纸本)9781509020508

physical layer network coding (PNC) is a promising technique to improve the network throughput in a wireless two-way relay (TWR) channel. The PNC is embraced for TWR with free space optical (FSO) communication link, TWR-FSO, for full utilization of network resources. In this paper, forward error correction (FEC) is employed with TWR-FSO PNC system. The convolutional code (CC) is considered to combat the deleterious effect of FSO turbulence channel to increase the system reliability. The performance of end-to-end (E2E) CC with TWR-FSO PNC scheme is examined in terms of bit error rate (BER) under the influence of turbulence-induced channel fading. The results show that the proposed scheme can achieve a significant BER performance improvement through the introduction of CC joint with PNC mapping, which enables the system to effectively mitigate the impact of channel.

关键词： physical layer network coding free space optical communication convolutional code turbulence

来源：评论

学校读者我要写书评

暂无评论

physical layer network coding With Spectrally Efficient Pulse Shapes

引用

IEEE WIRELESS COMMUNICATIONS LETTERS 2015年第6期4卷 665-668页

作者： Miller, Scott L. Texas A&M Univ Dept Elect & Comp Engn College Stn TX 77843 USA

This letter investigates the use of spectrally efficient pulse shapes in a physical layer network coding (PNC) system. A multi-user detector is used in the form of a maximum likelihood sequence estimator that accounts for offsets in timing, amplitude and phase between the two incoming signals in the multiple-access phase of a PNC system. It is found that with root-raised cosine (RRC) pulses, the PNC system is much more sensitive to timing offset in terms of the performance of the receiver relative to when rectangular pulses are used. Simulation results confirm that it is necessary to keep the incoming signals aligned to within about 1/10th of a symbol interval to avoid substantial performance loss.

关键词： physical layer network coding bandlimited communications maximuim likelihood detection synchronous detection

来源：评论

学校读者我要写书评

暂无评论

physical layer network coding with Two-Way Relay Free Space Optical Communication Link 6

Physical Layer Network Coding with Two-Way Relay Free Space ...

引用

INTERNET TECHNOLOGIES AND ApPLICATIONS (ITA)

作者： Abu-Almaalie, Z. Ghassemlooy, Z. Le-Minh, H. Aslam, N. Northumbria Univ Fac Engn & Environm Opt Commun Res Grp Newcastle Upon Tyne Tyne & Wear England Northumbria Univ Fac Engn & Environm Computat Intelligence Res Grp Newcastle Upon Tyne Tyne & Wear England

ISBN: (纸本)9781479980369

physical layer network coding (PNC) is a promising technique used to improve the network throughput in a wireless two-way relay (TWR) channel. In this paper, the PNC technique is embraced for a TWR-free space optical (FSO) communication link for the full utilization of network resources. Such a scheme is particularly useful in situations where multiple nodes wish to exchange their information but there is no direct link between them. Compared with a traditional relay-assisted FSO link, the new scheme uses two phases in a round loop for a TWR transmissions link. We present simulation results for the bit error rate (BER) performance of the proposed system considering the effect of both the atmospheric turbulence and the path loss using subcarrier intensity modulation binary phase shift keying (SIM-BPSK). The result shows that for the TWR FSO link based PNC technique under an atmospheric channel with a weak fading strength of 0.3, a BER of 10(-4) is achieved at a signal-to-noise ratio (SNR) of similar to 25dB.

关键词： physical layer network coding Free space optical log-normal model path loss Two-Way Relay Channel

来源：评论

学校读者我要写书评

暂无评论

Perfect Secrecy in physical-layer network coding Systems From Structured Interference

引用

IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY 2016年第8期11卷 1875-1887页

作者： Karpuk, David A. Chorti, Arsenia Aalto Univ Dept Math & Syst Anal FI-00076 Espoo Finland Univ Essex Sch Comp Sci & Elect Engn Colchester Essex England

physical-layer network coding (PNC) has been proposed for next generation networks. In this paper, we investigate PNC schemes with embedded perfect secrecy by exploiting structured interference in relay networks with two users and a single relay. In a practical scenario where both users employ finite and uniform signal input distributions, we establish upper bounds (UBs) on the achievable perfect secrecy rates and make these explicit when pulse amplitude modulation modems are used. We then describe two simple, explicit encoders that can achieve perfect secrecy rates close to these UBs with respect to an untrustworthy relay in the single antenna and single relay setting. Last, we generalize our system to a multiple-input multiple-output relay channel, where the relay has more antennas than the users and study optimal precoding matrices, which maintain a required secrecy constraint. Our results establish that the design of PNC transmission schemes with enhanced throughput and guaranteed data confidentiality is feasible in next generation systems.

关键词： physical layer network coding achievable secrecy rate perfect secrecy signal space alignment

来源：评论

学校读者我要写书评

暂无评论

Space-Time Coded Spatial Modulated physical layer network coding for Two-Way Relaying

引用

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2015年第1期14卷 331-342页

作者： Unnikrishnan, K. G. Rajan, B. Sundar Indian Inst Sci Dept Elect Commun Engn Bangalore 560012 Karnataka India

Using the spatial modulation approach, where only one transmit antenna is active at a time, we propose two transmission schemes for two-way relay channel using physical layer network coding with space time coding using coordinate interleaved orthogonal designs (CIODs). It is shown that using two uncorrelated transmit antennas at the nodes, but using only one RF transmit chain and space-time coding across these antennas can give a better performance without using any extra resources and without increasing the hardware implementation cost and complexity. In the first transmission scheme, two antennas are used only at the relay, adaptive network coding (ANC) is employed at the relay and the relay transmits a CIOD space time block code (STBC). This gives a better performance compared to an existing ANC scheme for two-way relay channel which uses one antenna each at all the three nodes. It is shown that for this scheme at high SNR the average end-to-end symbol error probability (SEP) is upper bounded by twice the SEP of a point-to-point fading channel. In the second transmission scheme, two transmit antennas are used at all the three nodes, CIOD STBCs are transmitted in multiple access and broadcast phases. This scheme provides a diversity order of two for the average end-to-end SEP with an increased decoding complexity of O(M-3) for an arbitrary signal set and O(M-2 root M) for square QAM signal set. Simulation results show that the proposed schemes performs better than the existing ANC schemes under perfect and imperfect channel state information.

关键词： Coordinate interleaved orthogonal designs denoise-and-forward physical layer network coding spatial modulation wireless two-way relaying

来源：评论

学校读者我要写书评

暂无评论

Analysis and Implementation of Asynchronous physical layer network coding

引用

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2015年第12期14卷 6595-6607页

作者： Marcum, Andrew C. Krogmeier, James V. Love, David J. Sprintson, Alex Purdue Univ Sch Elect & Comp Engn W Lafayette IN 47907 USA Raytheon Co Waltham MA 02451 USA Texas A&M Univ Dept Elect & Comp Engn College Stn TX 77843 USA

physical layer network coding has attracted extensive theoretical interest, although relatively little research has been done in support of deployment to wireless networks where internode synchronization is difficult to achieve. In particular, wireless networks constructed with inexpensive and commercially available software defined radio technology, or more generally, radio front-end samplers connected to internet-based remote processors (i.e., the Internet of Things network) may exhibit large time, frequency, and phase offsets that are difficult to control. In this paper, we define an asynchronous discrete-time model that accounts for these impairments as part of the information transfer between network users and a relay. Derived from this model are maximum likelihood algorithms for relay parameter estimation and a symbol decoder inspired from asynchronous multi-user detection. Additionally, null space-based frequency offset estimation that reduces computational complexity is proposed. Simulation results and the design and performance of a two-user system implemented with the Universal Software Radio Peripheral (USRP) platform and GNU radio are included to demonstrate the proof of concept. Our results indicate that the physical layer network coding technique can be successfully deployed and yields significant benefits even in the presence of impairments found in practical settings.

关键词： physical layer network coding software defined radio estimation synchronization

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：