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Статті в журналах з теми "Cooperatie relay beamforming"
Ryu, Jong Yeol, and Jung Hoon Lee. "Trust Degree-Based MISO Cooperative Communications with Two Relay Nodes." Wireless Communications and Mobile Computing 2019 (January 1, 2019): 1–13. http://dx.doi.org/10.1155/2019/7927358.
Повний текст джерелаMahboobi, Behrad, Mehrdad Ardebilipour, Ashkan Kalantari, and Ehsan Soleimani-Nasab. "Robust Cooperative Relay Beamforming." IEEE Wireless Communications Letters 2, no. 4 (August 2013): 399–402. http://dx.doi.org/10.1109/wcl.2013.050613.130105.
Повний текст джерелаShukla, Aasheesh, Vishal Goyal, Puneet Mishra, and Vinay Kumar Deolia. "Cooperative relay beamforming in IDMA communication networks." Journal of Electrical Engineering 69, no. 4 (August 1, 2018): 300–304. http://dx.doi.org/10.2478/jee-2018-0042.
Повний текст джерелаGhamari Adian, Mehdi. "Beamforming with Reduced Complexity in MIMO Cooperative Cognitive Radio Networks." Journal of Optimization 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/325217.
Повний текст джерелаCheng, Ruixia, Yu Tian, Junwen Zhu, and Yiwen Zhang. "Research on anti-jamming beamforming with multi-UAV relays." ITM Web of Conferences 45 (2022): 02006. http://dx.doi.org/10.1051/itmconf/20224502006.
Повний текст джерелаHan, Chun Lei, Mei Lu Lin, and Ye Yang. "Performance Analysis for Hybrid Cooperative Beamforming in Wireless Relay Networks." Applied Mechanics and Materials 543-547 (March 2014): 3435–40. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.3435.
Повний текст джерелаYu, Haiyang, Wei Duan, Qiang Sun, Xia Wang, Jue Wang, Jun Li, and Jaeho Choi. "Generalized Beamforming Design for Cooperative MIMO Multirelay Networks with Infinite Constraints and Imperfect CSI." Mathematical Problems in Engineering 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/9797549.
Повний текст джерелаZhu, Jinxin, and Jun Shao. "Outage Constraint Robust Cooperative Beamforming and Jamming Design for Secure AF Relay Networks." Mathematical Problems in Engineering 2021 (November 5, 2021): 1–7. http://dx.doi.org/10.1155/2021/5919617.
Повний текст джерелаChoi, Jinho. "MMSE-Based Distributed Beamforming in Cooperative Relay Networks." IEEE Transactions on Communications 59, no. 5 (May 2011): 1346–56. http://dx.doi.org/10.1109/tcomm.2011.030411.100158.
Повний текст джерелаAli, Sumayya, and K. M. Smitha. "Optimal Cooperative Beamforming Design for MIMO Relay Channels." Procedia Technology 24 (2016): 796–803. http://dx.doi.org/10.1016/j.protcy.2016.05.096.
Повний текст джерелаДисертації з теми "Cooperatie relay beamforming"
Lanzarini, Matteo. "Distributed optimization methods for cooperative beamforming in satellite communications." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23246/.
Повний текст джерелаFazeli, Dehkordy Siavash. "Distributed Beamforming in Wireless Relay Networks." Thesis, 2008. http://hdl.handle.net/1974/1442.
Повний текст джерелаThesis (Master, Electrical & Computer Engineering) -- Queen's University, 2008-09-17 13:07:21.505
Cho, Ting-Nan, and 卓庭楠. "Cooperative Beamforming with Multi-Relay Selection for Wireless Ad Hoc Networks." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/01701579738488645293.
Повний текст джерела國立清華大學
通訊工程研究所
98
Cooperative beamforming or collaborative beamforming is an energy-efficient cooperative diversity technique that cophases multiple received signals at the receiver to compensate the phase differences due to defferent propagation delays. With perfect synchronization, a deterministic mainlobe power level can be guaranteed at the inteneded direction for a given network topology. However, the sidelobes, depending on the relays’ positions as well as the weighting vectors, have probabilistic power levels over the angle domain. Moreover, a high power level sidelobe may cause an unacceptable interference level at an unintended receiver. Thus, limiting the sidelobes to meet some requirements is of importance in cooperative beamforming. In this thesis, we develop a two-step multi-relay selection scheme for cooperative conventional beamforming based on a selection vector design. We formulate an optimization problem that minimizes the average power over all unintended directions with a constraint of unit power gain pointing to the desired user. Using the Lagrange multiplier, we further reduce the optimization problem as an eigenvalue decomposition problem. The solution is then used to form two selection criteria, where the first one is for finding the optimal reference relay and the second one is for selecting the optimal relaying set for cooperative conventional beamforming according to the reference relay. The proposed relay selection method provides a reduced-complexity, suboptimal solution for cooperative beamforming, where the receiver selects a set of cooperating relays by broadcasting a binary feedback message. Simulation results show that the proposed multi-relay selection scheme provides lower average power over all unintended directions than both the near and far cases, where the performance is close to that of the exhaustive search approach.
Yung-JenChen and 陳詠任. "Relay Selection Scheme for Cooperative Cognitive Radio Networks With Beamforming Technique." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/37606499651060383471.
Повний текст джерела國立成功大學
電腦與通信工程研究所
101
The cognitive radio (CR) network has become a featuring technique due to the lack of spectrum. By applying dynamic spectrum allocation schemes, the secondary users (SUs) can utilize the spectrum holes more flexibly and achieve better performance and efficiency. With the help of cooperative relaying, the SUs can overcome the throughput loss due to the error-prone wireless fading channel. In this thesis, adaptive spatial multiplexing is designed to access the spatial spectrum holes (SSH) to guarantee the throughputs of PUs. We consider a cooperative CR network that the SU network is surrounded by PU receivers, and the goal is to choose the best relays that benefit the whole system. By modifying the projected-singular decomposition value (P-SVD) and the number-based algorithm (NBA) relay selection scheme, we propose an adaptive null space (ANS) relay selection scheme in order to transmit even when the number of surrounding PUs is equal to the number of SU transmit antennas and to choose the relay with the least channel gain from SU transmitters to PU receivers which suffer interference from SU transmitters. To define the total performance of both PUs and SUs, we introduce a factor called CI ratio which is a ratio of the capacity of SUs to the interference to PUs. Obviously, the more CI ratio the system has, the better performance is achieved. Simulation results show that the ANS scheme is close to the NBA scheme in terms of average end-to-end capacity of SUs and outperforms the NBA scheme in terms of CI ratios.
Zhao, Yi. "Cooperative networks with multiple relays: Selection, repetition and beamforming." 2008. http://link.library.utoronto.ca/eir/EIRdetail.cfm?Resources__ID=742566&T=F.
Повний текст джерелаOveis, Gharan Shahab. "Diversity Multiplexing Tradeoff and Capacity Results in Relayed Wireless Networks." Thesis, 2010. http://hdl.handle.net/10012/5179.
Повний текст джерелаЧастини книг з теми "Cooperatie relay beamforming"
Zhang, Yizhen, Guobing Li, Guomei Zhang, and Gangming Lyu. "Cooperative Beamforming and Artificial Noise Design for Secure Multi-pair Communications in Wireless Two-Way Relay Networks." In Wireless Algorithms, Systems, and Applications, 735–44. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-21837-3_72.
Повний текст джерелаТези доповідей конференцій з теми "Cooperatie relay beamforming"
Chatzipanagiotis, Nikolaos, Athina Petropulu, and Michael M. Zavlanos. "A distributed algorithm for cooperative relay beamforming." In 2013 American Control Conference (ACC). IEEE, 2013. http://dx.doi.org/10.1109/acc.2013.6580418.
Повний текст джерелаEl-Keyi, Amr, and Benoit Champagne. "Cooperative MIMO-beamforming for multiuser relay networks." In ICASSP 2008 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2008. http://dx.doi.org/10.1109/icassp.2008.4518218.
Повний текст джерелаRamezani-Kebrya, Ali, Min Dong, Ben Liang, Gary Boudreau, and Ronald Casselman. "Optimal cooperative relay beamforming for interference minimization." In 2015 IEEE International Conference on Signal Processing for Communications (ICC). IEEE, 2015. http://dx.doi.org/10.1109/icc.2015.7248700.
Повний текст джерелаHuang, Yupeng, Liyan Li, Ming-Min Zhao, and Min-Jian Zhao. "Joint Relay Clustering and Beamforming Design for Cooperative Relay Networks." In 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall). IEEE, 2021. http://dx.doi.org/10.1109/vtc2021-fall52928.2021.9625426.
Повний текст джерелаYang, Zilong, and Min Dong. "Low-complexity cooperative relay beamforming for multi-cluster relay interference networks." In 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC). IEEE, 2016. http://dx.doi.org/10.1109/spawc.2016.7536882.
Повний текст джерелаSingh, Sudhir, Paul D. Teal, Pawel A. Dmochowski, and Alan J. Coulson. "Robust cooperative relay beamforming for cognitive radio networks." In 2016 Australian Communications Theory Workshop (AusCTW). IEEE, 2016. http://dx.doi.org/10.1109/ausctw.2016.7433655.
Повний текст джерелаChoi, Jinho, and Jeongseok Ha. "MMSE-based distributed beamforming in cooperative relay networks." In 2011 IEEE 54th International Midwest Symposium on Circuits and Systems (MWSCAS). IEEE, 2011. http://dx.doi.org/10.1109/mwscas.2011.6026480.
Повний текст джерелаChen, X., S. H. Song, and K. B. Letaief. "Transmit and Cooperative Beamforming in Multi-Relay Systems." In ICC 2010 - 2010 IEEE International Conference on Communications. IEEE, 2010. http://dx.doi.org/10.1109/icc.2010.5502421.
Повний текст джерелаYi, Tao, Li Guo, Kai Niu, Hongyan Cai, Jiaru Lin, and Wenbao Ai. "Cooperative beamforming in cognitive radio network with hybrid relay." In 2012 19th International Conference on Telecommunications (ICT). IEEE, 2012. http://dx.doi.org/10.1109/ictel.2012.6221214.
Повний текст джерелаTalebi, Arash, and Witold A. Krzymien. "Multiple-Antenna Multiple-Relay Cooperative Communication System with Beamforming." In 2008 IEEE Vehicular Technology Conference (VTC 2008-Spring). IEEE, 2008. http://dx.doi.org/10.1109/vetecs.2008.521.
Повний текст джерела