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

Rui Wang, Xiaojun Yuan
2020 arXiv   pre-print
Combined with several new techniques, such as physical-layer network coding (PLNC), signal and interference alignments, multi-input multi-output (MIMO), etc., the mRC exhibits superior capability to assist  ...  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 [72] , the authors considered an mRC with a multi-antenna relay.  ... 
arXiv:2010.04407v1 fatcat:u542eqhimje5dmklskip2fqboe

Maximum Ratio Combining Precoding for Multi-Antenna Relay Systems

Hamid Reza Bahrami, Tho Le-Ngoc
2010 Communications and Network  
This paper addresses the design of practical communication strategies for multi-antenna amplify-and-forward and decode-and-forward relay systems.  ...  Besides, the structures of precoding matrices are very similar at the source and relay nodes, which reduce the complexity as all nodes can play the role of source and relay nodes without changing their  ...  In Section 2, we present the system model of the multi-antenna relay network.  ... 
doi:10.4236/cn.2010.22016 fatcat:r6pic5zjpvg7jdsftzzmpxkani

Maximum Ratio Combining Precoding for Multi-Antenna Relay Systems

H. R. Bahrami, T. Le-Ngoc
2008 2008 IEEE International Conference on Communications  
This paper addresses the design of practical communication strategies for multi-antenna amplify-and-forward and decode-and-forward relay systems.  ...  Besides, the structures of precoding matrices are very similar at the source and relay nodes, which reduce the complexity as all nodes can play the role of source and relay nodes without changing their  ...  In Section 2, we present the system model of the multi-antenna relay network.  ... 
doi:10.1109/icc.2008.161 dblp:conf/icc/BahramiL08 fatcat:2nxmcn5ccfgfheileztl7k5kmu

A Survey on Beamforming Techniques for Wireless MIMO Relay Networks

Demosthenes Vouyioukas
2013 International Journal of Antennas and Propagation  
relaying, degrees of freedom, diversity issues, and spectral efficiency, in cooperative and opportunistic systems.  ...  Different network topologies have been considered and categorized, pertaining the challenges of BF implementation in MIMO relay networks.  ...  (ii) Design of joint BS-RS precoding by solving the BS and RS precoding alternately S: single MIMO R: single AF two-way multi-pair MIMO D: single-antenna, multiple usersMultiple relays/multiple users  ... 
doi:10.1155/2013/745018 fatcat:vclhrye455aedj3fsin43j3cqm

Precoding design for space-time codes and relay selection with a novel scheme for multiple relay systems

Youyan Zhang, Youming Li
2018 EURASIP Journal on Wireless Communications and Networking  
with imperfect CSI.  ...  At first, we design the combined precoding matrices based on respectively the maximum signal-to-noise ratio (SNR) with perfect channel state information (CSI) and the minimum SER of the single-relay system  ...  Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.  ... 
doi:10.1186/s13638-018-1272-5 fatcat:2bdmaecsczdntpxz6wrjpxsdse

A Survey of Optimization Approaches for Wireless Physical Layer Security [article]

Dong Wang, Bo Bai, Wenbo Zhao, Zhu Han
2019 arXiv   pre-print
The topics on physical-layer security designs are then summarized from resource allocation, beamforming/precoding, and antenna/node selection and cooperation.  ...  Due to the malicious attacks in wireless networks, physical layer security has attracted increasing concerns from both academia and industry.  ...  Antenna/Node Selection and Cooperation Antenna/node selection and cooperation in multi-antenna and multi-node wireless networks have been well exploited for achieving different performance requirements  ... 
arXiv:1901.07955v1 fatcat:3pb27rlc45c3dmnjgwmjyspvb4

Outage performance analysis of two-way relay system with multi-antenna relay node

Rui Wang, Meixia Tao
2012 2012 IEEE International Conference on Communications (ICC)  
This paper presents an analytical study on the outage performance of amplify-and-forward (AF) two-way relay system with multi-antenna relay node (RN).  ...  The analytical results show that, for non-precoding MABC scheme, the diversity order is only 1, which is independent to the relay antenna number M .  ...  CONCLUSIONS This paper presented the study on the outage performance of AF two-way relaying with multi-antenna RN.  ... 
doi:10.1109/icc.2012.6363835 dblp:conf/icc/WangT12 fatcat:mksce6zkkjevpexgkzkxpaw23a

On the Energy Efficient Multiple Pair Communications in Two-Way Massive MIMO Relaying Networks with Imperfect CSI

Do Dung Nguyen, Qingchun Chen
2017 Journal of Science and Technology Issue on Information and Communications Technology  
Moreover, when the transmit power at relay is sufficient, both the MRC/MRT and the ZFR/ZFT based relaying strategy can effectively cope with the channel state information (CSI) error.  ...  K single antenna destination nodes with the help of one relay provisioned with N(N >> K) antenna array.  ...  MRC/MRT at the Relay When imperfect CSIĜ l is available at the relay, the processing matrix can be applied based on the MRC/MRT principle [7] for reception and precoders at the relay.  ... 
doi:10.31130/jst.2017.33 fatcat:gr5wzsi5rffilfzq3bovgcwntu

Transmit Precoding for Flat-Fading MIMO Multiuser Systems With Maximum Ratio Combining Receivers

Adem Coskun, Cagatay Candan
2011 IEEE Transactions on Vehicular Technology  
We examine the application of transmit precoding in multiuser multi-input-multi-output (MIMO) communication systems with maximum ratio combining (MRC) receivers.  ...  It has been observed that the SINR balancing framework with simple MRC receivers has little performance loss in comparison with the MMSE receivers with a proper selection of precoders.  ...  The results of [8] were extended to the MUD-based cooperative networks with multiple relays in [9] .  ... 
doi:10.1109/tvt.2010.2096484 fatcat:l3qift3k3vfzfldxizh7msqkoe

Towards the Asymptotic Sum Capacity of the MIMO Cellular Two-Way Relay Channel

Zhaoxi Fang, Xiaojun Yuan, Xin Wang
2014 IEEE Transactions on Signal Processing  
with multiple multi-antenna mobile stations via a multi-antenna relay station (RS).  ...  In this paper, we consider the transceiver and relay design for multiple-input multiple-output (MIMO) cellular two-way relay channel (cTWRC), where a multi-antenna base station (BS) exchanges information  ...  For the channels between the relay and the MSs, training based method can be employed to estimate the CSIs as in conventional cellular networks.  ... 
doi:10.1109/tsp.2014.2332971 fatcat:jlmq6bhykjfgvmbtiq263udkmy

Sum MSE Minimization for Downlink Multi-Relay Multi-User MIMO Network

2014 KSII Transactions on Internet and Information Systems  
(BS) transmitter, relay precoders and user receivers to minimize sum mean square error (SMSE) for multi-relay multi-user (MRMU) networks.  ...  We propose methods of linear transceiver design for two different power constraints, sum relay power constraint and per relay power constraint, which determine signal processing matrices such as base station  ...  combining (MRC) [23] for the 2 nd hop link.  ... 
doi:10.3837/tiis.2014.08.009 fatcat:gklyhgocuvbgfez6xnrdsumdea

Transceiver Design Using Local Channel State Information at Relays for A Multi-Relay Multi-User MIMO Network

2013 KSII Transactions on Internet and Information Systems  
Exploiting BS transmitter structure which is concatenated with block diagonalization (BD) precoder, each relay's precoder can be determined using local CSI at the relay.  ...  The proposed scheme is based on sequential iteration of two stages; stage 1 determines BS transmitter and relay precoders jointly with SMSE duality, and stage 2 determines user receivers.  ...  [3] proposed cooperative relaying transmission schemes for the network in which there are two users and two decode-and-forward (DF) relays with single BS, and multiple antennas are equipped to relays  ... 
doi:10.3837/tiis.2013.11.004 fatcat:zfqashfeb5eltlzg5cciydcvly

2018 IndexIEEE Wireless Communications LettersVol. 7

2018 IEEE Wireless Communications Letters  
., +, LWC Feb. 2018 102-105 Imperfect CSI Based Multi-Way Satellite Relaying. M. K., A., LWC Oct. 2018 864-867 Joint Transmit Beamforming and Antenna Selection in MIMO Systems.  ...  ., +, LWC Oct. 2018 860-863 Performance of SWIPT-Based Differential AF Relaying Over Nakagami-m Fading Channels With Direct Link.  ... 
doi:10.1109/lwc.2018.2888676 fatcat:olfvetmkt5bt3c572e5y76b5pm

Wireless powered large-scale multi-antenna AF relaying for cooperative jamming-aided secrecy

Hong Xing, Yansha Deng, Kai-Kit Wong, Arumugam Nallanathan
2016 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)  
This paper studies the secrecy transmission with the aid of a large-scale multi-antenna amplify-and-forward (AF) relay wireless powered by the source.  ...  receiving (IR) in the first transmission phase; the aggregate of the total harvested power is further split for cooperative jamming (CJ) to confound the eavesdroppers, and AF using maximum ratio combining  ...  CONCLUSION In this work, we studied the impact of MRC and MRT based AF relay beamforming and CJ on the ESR for cooperative secrecy transmission via a large-number-antenna equipped WEH-enabled relay.  ... 
doi:10.1109/spawc.2016.7536864 dblp:conf/spawc/XingDWN16 fatcat:76nwvxxeizdbnhtzbodsgs2tw4

Multi-antenna relay aided wireless physical layer security

Xiaoming Chen, Caijun Zhong, Chau Yuen, Hsiao-Hwa Chen
2015 IEEE Communications Magazine  
This article offers a tutorial on various multi-antenna relaying technologies to improve security at physical layer.  ...  without eavesdropper channel state information (CSI) and with imperfect legitimate CSI.  ...  ADAPTIVE RESOURCE ALLOCATION FOR MULTI-ANTENNA SECURE RELAYING In multi-antenna relay networks, there are different types of resources, such as power, time, space and antenna resources.  ... 
doi:10.1109/mcom.2015.7355564 fatcat:d5gyaj4yyjea7on3ym3mmd3uli
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