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Secure Communication in Uplink Transmissions: User Selection and Multiuser Secrecy Gain

Hao Deng, Hui-Ming Wang, Jinhong Yuan, Wenjie Wang, Qinye Yin
2016 IEEE Transactions on Communications  
In order to achieve a multiuser gain, two low-complexity user selection schemes are proposed under different assumptions on the eavesdropper's channel state information (CSI).  ...  Therefore, when N is much larger than M, serving one user with the strongest channel (TDMA-like) is a favourable secrecy scheme, where the ESSR scales with root square of 2 log K.  ...  In this section, we investigate the impact of channel estimation errors on the performance of user selection in secure communication.  ... 
doi:10.1109/tcomm.2016.2585128 fatcat:u2wkdh5qirdodblgl7b63bfdvy

On the mobile wireless access via MIMO relays

Tae Hyun Kim, Nitin H. Vaidya, Young-Bae Ko
2009 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications  
While a network with stationary nodes can provide large capacity in many current wireless systems, a network with mobile users suffers from severe performance degradation.  ...  Through a theoretical throughput analysis that explicitly considers the protocol overheads, we show that the MIMO relay significantly enhances the sum throughput of the system.  ...  of user antennas in our system configuration.  ... 
doi:10.1109/pimrc.2009.5449979 dblp:conf/pimrc/0001VK09 fatcat:evywaxryujhipc3ajggnmq6eui

Superposition coded modulation and iterative linear MMSE detection

Li Ping, Jun Tong, Xiaojun Yuan, Qinghua Guo
2009 IEEE Journal on Selected Areas in Communications  
We analyze the impact of signaling schemes on the performance of iterative LMMSE detection.  ...  We study superposition coded modulation (SCM) with iterative linear minimum-mean-square-error (LMMSE) detection.  ...  These signals can be encoded distributively at different users/antennas/relay nodes. The receiver structure remains roughly the same for different variations.  ... 
doi:10.1109/jsac.2009.090817 fatcat:dnpkdqyus5gpddxlgnppwrcb64

An Overview on Multiway Relay Communications: Fundamental Issues, Recent Advances, and New Challenges [article]

Rui Wang, Xiaojun Yuan
2020 arXiv   pre-print
The multiway relay channel (mRC), which serves as a fundamental building block of a relay network, defines the family of all possible information-flow patterns between a relay node and its neighboring  ...  In this article, we aim to provide a comprehensive overview on the state-of-the-art of the mRC from the perspectives of both information-theoretic and communication-theoretic studies.  ...  3) Two-way X relay channel: Fig. 7 (c) depicts a 2Kuser two-way X relay channel with 2K users being classified into two groups.  ... 
arXiv:2010.04407v1 fatcat:u542eqhimje5dmklskip2fqboe

Cooperative Wireless Networking Beyond Store-and-Forward

Stefan Valentin, Hermann S. Lichte, Holger Karl, Guillaume Vivier, Sébastien Simoens, Josep Vidal, Adrian Agustin
2007 Wireless personal communications  
Each of these links may consist of several independent physical channels which are shared by the cooperating partners.  ...  We conclude with a road map for future research necessary to tackle these deficiencies for the practical implementation of cooperation in next-generation WLAN standards and mesh networks.  ...  Moreover, two modes of operation are considered at the relay: incremental transmission (the relay only transmits if the packet at the destination is received with error) and selective transmission (the  ... 
doi:10.1007/s11277-007-9429-2 fatcat:zswunp7rrnggvh6qlys525z7su

Performance Analysis of Multi-Cell Millimeter Wave Massive MIMO Networks with Low-Precision ADCs [article]

Jindan Xu, Wei Xu, Hua Zhang, Geoffrey Ye Li, Xiaohu You
2018 arXiv   pre-print
We first introduce a channel estimation strategy for the mmWave massive MIMO network and analyze the achievable rate with imperfect channel state information.  ...  The bound clearly demonstrates the impacts of the number of antennas and the ADC precision, especially for a single-cell mmWave network at low signal-to-noise ratio (SNR).  ...  On one hand, the channel estimation error decreases with τ because longer pilot improves the channel estimation accuracy.  ... 
arXiv:1810.02510v1 fatcat:mydmht2nmbdc7hovygf46k4czu

Multiple-Input Multiple-Output Two-Way Relaying: A Space-Division Approach

Xiaojun Yuan, Tao Yang, Iain B. Collings
2013 IEEE Transactions on Information Theory  
Index Terms-Multiple-input multiple-output (MIMO), physical-layer network coding, space-division precoding, two-way relay channel (TWRC).  ...  We propose a novel space-division-based network-coding scheme for multiple-input multiple-output (MIMO) two-way relay channels (TWRCs), in which two multiantenna users exchange information via a multiantenna  ...  Space-Division for MIMO Two-Way Relaying Based on the joint channel decomposition in Theorem 1, we now propose a new space-division approach for MIMO two-way relaying.  ... 
doi:10.1109/tit.2013.2271632 fatcat:qbefcfluq5hxbbpstxyb6txk6i

2019 Index IEEE Transactions on Communications Vol. 67

2019 IEEE Transactions on Communications  
., +, TCOMM Sept. 2019 6483-6498 User-Antenna Selection for Physical-Layer Network Coding Based on Euclidean Distance.  ...  ., +, TCOMM Feb. 2019 1693-1704 BER Evaluation of OFDM Systems With Joint Effect of TI-ADC Circuit's Gain Mismatch and Channel Estimation Error.  ...  S Satellite antennas On the Performance of LMS  ... 
doi:10.1109/tcomm.2019.2963622 fatcat:qd6so3reavde3eiukfknmpbfsu

Integrated network architecture for sustained human and robotic exploration

G.K. Noreen, R.J. Cesarone, L.J. Deutsch, C.D. Edwards, J.A. Soloff, T. Ely, B.M. Cook, D.D. Morabito, H. Hemmati, S. Piazzolla, R. Hastrup, D.S. Abraham (+2 others)
2005 2005 IEEE Aerospace Conference  
The paper 2 suggests that a modest ground network would suffice for missions to the near-side of the moon.  ...  A constellation of three Lunar Telecommunications Orbiters connected to a modest ground network could provide continuous redundant links to a polar lunar base and its vicinity.  ...  ACKNOWLEDGEMENTS The research described in this paper was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration  ... 
doi:10.1109/aero.2005.1559417 fatcat:rdvfvr3n6vaidolegripkgmyfq

Retrospective Interference Regeneration Schemes for Relay-Aided K-user MIMO Downlink Networks [article]

Jingfu Li
2021 arXiv   pre-print
Herein, three novel joint IA schemes are proposed for MIMO downlink networks with different number of users.  ...  These two factors are independent of the transmission schemes, and thus we aim to reduce the queueing delay slot to improve DoD.  ...  M m= M/2 +N +1 −h 2,N 2,m [t]s m [t]         , (22) whereĤ 1 R [t] andĤ 2 R [t] are the channel matrices between relay R's directional antennas and users' antennas.  ... 
arXiv:2106.12805v2 fatcat:cscmb5lz7bfvpidugm24uesctm

Performance analysis of multiuser dual-hop satellite relaying systems

Xuewen Wu, Min Lin, Qingquan Huang, Jian Ouyang, Athanasios D. Panagopoulos
2019 EURASIP Journal on Wireless Communications and Networking  
In this study, we investigate the outage probability (OP) of a multiuser dual-hop satellite relaying system with decode-and-forward (DF) protocol, where both uplink and downlink experience Shadowed Rician  ...  Then, we derive the closed-form OP expressions for the dual-hop satellite relaying with OS/SC and OS/MRC schemes, respectively.  ...  Funding Availability of data and materials The datasets generated and analyzed during the current study are not publicly available, but are available from the corresponding author on reasonable request  ... 
doi:10.1186/s13638-019-1471-8 fatcat:ejc4zrznfjdu3jwcp7bkcnbdem

Channel Access Scheme for MIMO-Enabled Ad Hoc Networks with Adaptive Diversity/Multiplexing Gains

Mohammad Z. Siam, Marwan Krunz
2008 Journal on spesial topics in mobile networks and applications  
In this paper, we incorporate a power-controlled MAC protocol for a wireless network with two antennas per node.  ...  Transmission power control (TPC) is used in wireless networks to improve channel reuse and/or reduce energy consumption.  ...  The proposed scheduling and antenna sharing method, referred to as fast transmit antenna selection (FTAS), uses adaptive proportional fairness (APF) mapping as a means to determine the user-antenna assignment  ... 
doi:10.1007/s11036-008-0107-8 fatcat:xhg6hgb57rd5vh4vjk4qo7pxbi

Evolution Toward 5G Mobile Networks – A Survey on Enabling Technologies

Rony Kumer Saha, Poompat Saengudomlert, Chaodit Aswakul
2016 Engineering Journal  
Hence, the network programmable aspect has a remarkable impact on the overall network control and management performances and is seen as an eventual path toward the evolution of 5G networks. 5G Network  ...  Architectural Evolution Framework The 5G cellular is in its early stage of research and development with no clear direction on how the envisaged high capacity of 5G networks can be achieved.  ...  The authors would like to thank the anonymous reviewers for their valuable comments to help improve the quality of the paper.  ... 
doi:10.4186/ej.2016.20.1.87 fatcat:llbntl3fw5fhbgvrzfnsfhwosy

A Vision and Framework for the High Altitude Platform Station (HAPS) Networks of the Future [article]

Gunes Kurt, Mohammad G. Khoshkholgh, Safwan Alfattani, Ahmed Ibrahim, Tasneem S. J. Darwish, Md Sahabul Alam, Halim Yanikomeroglu, Abbas Yongacoglu
2021 arXiv   pre-print
We highlight the unrealized potential of HAPS systems and elaborate on their unique ability to serve metropolitan areas.  ...  , the HAPS has emerged as an indispensable component of next-generations of wireless networks.  ...  availability of the channel statistics/model.  ... 
arXiv:2007.15088v4 fatcat:6wcy7ndiebee3a3zvh7dymv6oq

Facing the Millimeter-Wave Cell Discovery Challenge in 5G Networks With Context-Awareness

Francesco Devoti, Ilario Filippini, Antonio Capone
2016 IEEE Access  
We need new ways of dealing with legacy network functionalities to fully unleash their great potential, among them the cell discovery procedure is one of the most critical.  ...  The introduction of millimeter-wave (mm-wave) technologies in the future 5G networks poses a rich set of network access challenges.  ...  The transmitter power is set at P t = 30dBm, and the received power Pr is computed as: P r = P t + G BS + G MS − PL − R − F (7) where G BS is the mm-wave BS antenna gain and G MS is the user antenna gain  ... 
doi:10.1109/access.2016.2628917 fatcat:c52ilfsuyrhbvmgcazesunfo4m
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