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1-bit Phase Shifters for Large-Antenna Full-Duplex mmWave Communications

Jose Mairton B. Da Silva, Ashutosh Sabharwal, Gabor Fodor, Carlo Fischione
2020 IEEE Transactions on Wireless Communications  
We assume that the self-interference can be sufficiently cancelled by a combination of propagation domain and digital self-interference techniques, without any analog self-interference cancellation.  ...  Moreover, even a single quantization bit outperforms half-duplex transmissions, respectively by 29% and 10% for both low and high residual self-interference scenarios, and for a wide range of practical  ...  For example, comparing 60 dB and 5 dB for self-interference cancellation, Fig. 7 . Average spectral efficiency in the uplink and downlink.  ... 
doi:10.1109/twc.2020.3006959 fatcat:vfapdcurynbg5ldbqmk3igsyfi

A Full Duplex Transceiver with Reduced Hardware Complexity [article]

Mustafa Emara, Patrick Rosson, Kilian Roth, David Dassonville
2017 arXiv   pre-print
The key aspect to enable In-Band Full Duplex (IBFD) is sufficient cancellation of the unavoidable Self-Interference (SI).  ...  The Radio Frequency Self- Interference Canceler (RFSIC) is based on the isolation of a circulator in combination with a vector modulator regenerating the interference signal, to destructively combine it  ...  ACKNOWLEDGMENT This work was supported by the French project DUPLEX and the European Commission in the framework of the H2020-ICT-2014-2 project Flex5Gware(Grant agreement no. 671563).  ... 
arXiv:1711.07223v1 fatcat:f2ohvki6nffixj2pabmfp4iqey

Network densification: the dominant theme for wireless evolution into 5G

Naga Bhushan, Junyi Li, Durga Malladi, Rob Gilmore, Dean Brenner, Aleksandar Damnjanovic, Ravi Sukhavasi, Chirag Patel, Stefan Geirhofer
2014 IEEE Communications Magazine  
Large-scale cost-effective spatial densification is facilitated by self-organizing networks and intercell interference management.  ...  Network densification includes densification over space (e.g, dense deployment of small cells) and frequency (utilizing larger portions of radio spectrum in diverse bands).  ...  As a result, interference mitigation is paramount for link efficiency improvement in modern cellular systems.  ... 
doi:10.1109/mcom.2014.6736747 fatcat:euykx7swung77iicimptiyhjjq

B4G local area: High level requirements and system design

Preben Mogensen, Kari Pajukoski, Bernhard Raaf, Esa Tiirola, Eeva Lahetkangas, Istvan Z. Kovacs, Gilberto Berardinelli, Luis G. Uzeda Garcia, Liang Hu, Andrea F. Cattoni
2012 2012 IEEE Globecom Workshops  
In this paper, research motivations and high level requirements for a B4G local area concept are discussed.  ...  A next generation Beyond 4G (B4G) radio access technology is expected to become available around 2020 in order to cope with the exponential increase of mobile data traffic.  ...  signaling, CoMP, interference cancellation, etc.).  ... 
doi:10.1109/glocomw.2012.6477644 dblp:conf/globecom/MogensenPRTLKBGHC12 fatcat:bv54lnxsljbzvd5x2xdwehnvsu

Key techniques for 5G wireless communications: network architecture, physical layer, and MAC layer perspectives

Zheng Ma, ZhengQuan Zhang, ZhiGuo Ding, PingZhi Fan, HengChao Li
2015 Science China Information Sciences  
Consequently, the research and development for the fifth generation (5G) systems have already been started.  ...  This article presents an overview of potential network architecture and highlights several promising techniques which could be employed in the future 5G systems.  ...  The gains of self-interference processing are mainly obtained from antenna and RF stages. Real-time online automated tuning is a challenge for signal processing in self-interference cancellation.  ... 
doi:10.1007/s11432-015-5293-y fatcat:vowx5jgqojbijgst5szol45ebm

Overview of the International Radar Symposium Best Papers, 2019, Ulm, Germany

István Balajti
2020 Repüléstudományi közlemények  
Nowadays, the interference cancellation or mitigation plays a key important role in the effective use of the advanced radar technology.  ...  In civilian applications, the inter-radar interference of automotive radars is an emerging problem for automotive radar applications in case of dense deployment.  ...  support the usage of the radar and communication systems with higher spectral efficiency [16] .  ... 
doi:10.32560/rk.2019.3.553 fatcat:xwc6fasq7bah5j7tf7lctlpuki

A Survey of Self-Interference in LTE-Advanced and 5G New Radio Wireless Transceivers

Silvester Sadjina, Christian Motz, Thomas Paireder, Mario Huemer, Harald Pretl
2020 IEEE transactions on microwave theory and techniques  
His research activities focus on the study and the development of mixed signal interference cancellation techniques for the mitigation of receiver performance degradation in cellular transceiver systems  ...  Index Terms-Carrier aggregation (CA), cellular hand-set, fifth generation (5G), frequency division duplex (FDD), interference cancellation, long-term evolution advanced (LTE-A), self-interference (SI).  ...  ACKNOWLEDGMENT The authors would like to thank DMCE GmbH & Co KG as part of Intel for supporting this work carried out at the Christian Doppler Laboratory for Digitally Assisted RF Transceivers for Future  ... 
doi:10.1109/tmtt.2019.2951166 fatcat:w7mxbuchyfgpdl52acavqlaynm

Digitally Assisted RF-Analog Self Interference Cancellation for Wideband Full-Duplex Radios

Brynn King, Jingjing Xia, Slim Boumaiza
2018 IEEE Transactions on Circuits and Systems - II - Express Briefs  
RF-analog self interference canceller. iii  ...  In this thesis, a novel digitally assisted radio frequency (RF) analog self interference canceller is proposed to suppress the self interference signal before the receiver chain for wide modulation bandwidth  ...  Slim Boumaiza, for giving me guidance, advice, and confidence throughout my Masters process.  ... 
doi:10.1109/tcsii.2017.2736252 fatcat:a63dedyltrfcnnafoz7ludhnwy

Challenges and possibilities for flexible duplexing in 5G networks

Pekka Pirinen
2015 2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)  
TDD has also the advantage that it supports asymmetric radio resource division between up-and downlink either in fixed or dynamic manner.  ...  Legacy large coverage area networks have been designed for static and symmetric radio resources utilization where the uplink and downlink have most often been separated in frequency domain.  ...  ACKNOWLEDGMENT The author would like to thank the Finnish Funding Agency for Technology and Innovation (Tekes), Nokia, Huawei, and Anite for the project funding.  ... 
doi:10.1109/camad.2015.7390471 dblp:conf/camad/Pirinen15 fatcat:fkpbns3vtvaj5dbtxnhgk4yt64

Radar Spectrum Engineering and Management: Technical and Regulatory Issues

Hugh Griffiths, Lawrence Cohen, Simon Watts, Eric Mokole, Chris Baker, Mike Wicks, Shannon Blunt
2015 Proceedings of the IEEE  
These include improved transmitter spectral purity, passive radar, and intelligent, cognitive approaches that dynamically optimize spectrum use.  ...  | The radio-frequency (RF) electromagnetic spectrum, extending from below 1 MHz to above 100 GHz, represents a precious resource.  ...  Therefore, there is great potential for approaches aimed at using the spectrum in an efficient and dynamically controlled manner.  ... 
doi:10.1109/jproc.2014.2365517 fatcat:b5qa3ezohbglzbpt2tnykmfrr4

Wireless Backhaul in 5G and Beyond: Issues, Challenges and Opportunities [article]

Berke Tezergil, Ertan Onur
2021 arXiv   pre-print
Wireless backhaul also acts as an enabler for new technologies and improves some of the existing ones significantly.  ...  To name a few, rural connectivity, satellite communication, and mobile edge computing are some concepts for which wireless backhauling acts as an enabler.  ...  Consequently, dynamic and fast resource management is crucial for satellite systems.  ... 
arXiv:2103.08234v2 fatcat:3fug6wsmtrg5bfxk2ga2f2al5i

Architecture and Technology Components for 5G Mobile and Wireless Communication

Manasa H R, Pramila S
2015 International Journal of Engineering Research and  
The goal of this generation is to produce specifications for a new radio access technology to provide higher data rates, low latency and generates spectral efficiency.  ...  This paper present a future mobile and wireless communication system that will provide highly versatile consumption, cost and spectrum usage.  ...  Hence we can see significant improvements in terms of reliability, spectral efficiency and energy efficiency.  ... 
doi:10.17577/ijertv4is061112 fatcat:r5l7o6u4ovbl7gm65lfibjsaxi

Leveraging Machine-Learning for D2D Communications in 5G/Beyond 5G Networks

Sherief Hashima, Basem M. ElHalawany, Kohei Hatano, Kaishun Wu, Ehab Mahmoud Mohamed
2021 Electronics  
Although D2D communication provides several benefits, including limited interference, energy efficiency, reduced delay, and network overhead, it faces a lot of technical challenges such as network architecture  ...  A case study of applying multi-armed bandit (MAB) as an efficient online ML tool to enhance the performance of neighbor discovery and selection (NDS) in mmWave D2D networks will be presented.  ...  Author Contributions: All authors contributed equally in this paper. All authors have read and agreed to the published version of the manuscript.  ... 
doi:10.3390/electronics10020169 fatcat:2l764bczknhf7ctlmbsyllllme

Cognitive Radio: UWB Integration and Related Antenna Design [chapter]

Mohammed Al-Husseini, Karim Kabalan, Ali El-Hajj, Christos Christodoulou
2010 New Trends in Technologies: Control, Management, Computational Intelligence and Network Systems  
An example of a spectrum licensed for exclusive usage are the frequency bands sold for use in the Universal Mobile Telecommunication System (UMTS) in Europe.  ...  In the first approach, which FCC calls the exclusive use model, the licensee has exclusive usage rights for a specific spectrum.  ...  Therefore UWB promises to enable the usage of licensed spectrum without harmful interference to primary communication systems, and can be used as an enabling technology for implementing CR.  ... 
doi:10.5772/10405 fatcat:io6szc5oundkxngaoddzftu7aq

A Survey of Energy and Spectrum Harvesting Technologies and Protocols for Next Generation Wireless Networks

Ashish Padhy, Sandeep Joshi, Sainath Bitragunta, Vinay Chamola, Biplab Sikdar
2020 IEEE Access  
These EH-SH-enabled sensors or low-power nodes need to consume very little energy for sensing and communicating opportunistically.  ...  However, several theoretical problems and practical challenges exist in EH-SH communications.  ...  In the electromagnetic spectrum, the useful frequencies suitable for communications are limited and licensed, such as 5G radio-frequency (RF) spectrum, TV frequency bands, and RF bands.  ... 
doi:10.1109/access.2020.3046770 fatcat:zgu7faziaje7nimeaayhjoe2yu
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