Results 131 to 140 of about 1,797 (181)

Secure communications with D2D cooperation

2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA'15), 2015
Device to Device (D2D) communications provides a promising technique for 5G wireless networks, supporting higher data rates. Security of data transmission over wireless clouds could put constraints on devices; whether to cooperate or not. Therefore, our aim is to provide analytical framework for the security at the physical layer and to define the ...
Samah A. M. Ghanem, Munnujahan Ara
openaire   +1 more source

Impact of Shadowing in D2D Communication

2017 IEEE Wireless Communications and Networking Conference (WCNC), 2017
Device-to-device (D2D) communication is expected to increase the coverage probability by coexisting along with the conventional cellular systems in 5G technology. As the user equipments are often held closer to the human body, D2D links experience shadowing modelled by the amp;#954;-amp;#956; shadowed fading model.
Sudharsan Parthasarathy, Radha Krishna Ganti   +1 more
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Feasible D2D communication distance in D2D-enabled cellular networks

2014 IEEE International Conference on Communication Systems, 2014
In D2D-enabled cellular networks, data communications between user equipments (UEs) can be completed by two modes: the cellular mode and the D2D mode where UEs bypass the base station and directly communicate with each other. Usually the transmission mode is selected based on the distance between the UEs.
Haichuan Ding, Shaodan Ma, Chengwen Xing
openaire   +1 more source

Enabling D2D communications in LTE networks

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2013
Device-to-Device (D2D) communications provide the means to users of cellular networks for spatially reusing licensed spectrum by establishing direct connections. Considering the benefits for operators and consumers, a plethora of resource and interference management approaches in the literature deal with parallel cellular and D2D transmissions. However,
Dimitris Tsolkas, Eirini Liotou, Nikos I. Passas, Lazaros F. Merakos   +3 more
openaire   +2 more sources

Operational region of overlay D2D communications

2015 IEEE International Conference on Communications (ICC), 2015
An important enabler towards the successful introduction of any new element/feature to the cellular network, such as the ability to allow for direct, device-to-device (D2D) communications, is the investigation and characterization of the operational conditions, e.g., density of users, where its deployment will enhance performance.
Stelios Stefanatos, Antonis G. Gotsis, Angeliki Alexiou   +2 more
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D2D CSI feedback for D2D aided massive MIMO communications

2016 IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), 2016
We consider fast fading massive MIMO systems in Frequency Division Duplex (FDD) mode and propose a communication scheme based on Device-to-Device (D2D) cooperation and statistical channel state information (CSI) feedback. User terminals (UT) are conveniently clustered and cooperate within a cluster to create a virtual MIMO at a target UT via D2D ...
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Introduction to D2D Communication

2014
Analysts predict an explosive growth in traffic demand on mobile broadband systems over the coming years due to the popularity of streaming video, gaming, and other social media services. While 4G wireless technologies are making a significant effort to keep up with this demand, the expectation is that cellular deployments will fall short of the ...
Shahid Mumtaz, Jonathan Rodriguez
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Interference aware approach for D2D communications

2016 IEEE International Conference on Communications (ICC), 2016
Device-to-device (D2D) communications enable the proximity communications among users with or without the use of the network infrastructure. D2D communications can increase the overall spectrum efficiency and reduce the power consumption thus a massive utilization of D2D is expected in the future 5G networks.
L. Pierucci, R. Fantacci, F. Chiti, Di Giacomo D.   +3 more
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Assessing Coverage and Throughput for D2D Communication

2018 IEEE International Conference on Communications (ICC), 2018
In this paper, we access the performance of a Device-to-Device (D2D) communication link. Particularly, we design a framework to evaluate performance with respect to coverage probability and average throughput. Our modeling framework considers a variety of D2D deployment scenarios (i.e., Outdoor-to-Outdoor, Outdoor-to-Indoor, and Indoor-to-Indoor ...
Jian Wang 0098, Richard Rouil
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On D2D communications for public safety applications

2017 IEEE Canada International Humanitarian Technology Conference (IHTC), 2017
Providing seamless wireless coverage is essential for maintaining reliable communications in cellular networks. However, in extraordinary circumstances such as catastrophes, cellular infrastructure could be severely damaged; therefore, coverage is lost.
Ali A. Alnoman, Alagan Anpalagan
openaire   +1 more source