Results 111 to 120 of about 87,779 (141)

Cognitive Heterogeneous Networks With Best Relay Selection Over Unreliable Backhaul Connections

open access: yes2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017
In this paper, we investigate the impacts of unreliable backhaul connections on cognitive heterogeneous networks with best relay selection. Since spectrum sharing is employed, the transmit powers of the small-cell transmitter and relays are constrained by the peak interference at the primary user, as well as their maximum transmit powers.
Won-Joo Hwang   +2 more
exaly   +3 more sources

Secrecy Analysis of CSI Ratio-Based Transmitter Selection With Unreliable Backhaul [PDF]

open access: yes2024 15th International Conference on Computing Communication and Networking Technologies (ICCCNT)
This paper explores the secrecy performance of a multi-transmitter system with unreliable backhaul links. To improve secrecy, we propose a novel transmitter selection (TS) scheme that selects a transmitter with the maximum ratio of the destination channel power gain to the eavesdropping channel power gain.
Ankit Dubey, Chinmoy Kundu
exaly   +5 more sources

Secrecy Performance of Small-Cell Networks With Transmitter Selection and Unreliable Backhaul Under Spectrum Sharing Environment [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2019
We investigate the secrecy performance of an underlay small-cell cognitive radio network under unreliable backhaul connections. The small-cell network shares the same spectrum with the primary network, ensuring that a desired outage probability constraint is always met in the primary network. {To improve the security of the small-cell cognitive network,
Octavia Dobre   +2 more
exaly   +6 more sources

Multi-User PD-NOMA With Unreliable Backhaul Links in a Multiple EH Relay Network Over Nakagami-m Fading Channels

open access: yesPhysical Communication, 2021
Abstract In this paper, we analyze the performance of cooperative power-domain non-orthogonal multiple access systems (PD-NOMA) for multiple users in a multiple energy-harvesting (EH) relay network with unreliable backhaul links over Nakagami-m fading channels.
Le Thi Anh 0001, Hyung Yun Kong
exaly   +3 more sources

Mobility Management for Wireless Systems With Unreliable Backhaul Links [PDF]

open access: yesIEEE Communications Letters, 1998
We consider a wireless system with unreliable microwave backhaul links. Since the links may be disconnected, the location update procedure may be incorrectly exercised, which results in misrouted calls. This paper proposes an analytic model to derive the misrouting probabilities as functions of the link disconnection time distribution.
Yi-Bing Lin
exaly   +3 more sources

Performance Analysis of Energy Harvesting Relay Systems Under Unreliable Backhaul Connections

open access: yesIET Communications, 2018
In this study, the performance of energy harvesting systems in the presence of unreliable backhaul links is investigated over independent but not necessarily identically distributed Nakagami‐ m fading channels.
Quang-Sang Nguyen
exaly   +2 more sources

Secure Cognitive Radio Networks With Source Selection and Unreliable Backhaul Connections

open access: yesIET Communications, 2018
In this study, the secrecy performance of cooperative half‐duplex cognitive relay networks (CRNs) comprised of multiple primary users (PUs) and multiple eavesdroppers under the effect of unreliable wireless backhauls is studied. The authors consider relay networks with single relay assisting multiple sources under power constraints at PUs and secondary
Long Nguyen, Chinmoy Kundu
exaly   +2 more sources
Some of the next articles are maybe not open access.

Secure Communication via an Untrusted Relay With Unreliable Backhaul Connections

Wireless Networks, 2019
This paper studies the secrecy performance of a wireless energy harvesting system in which a source connected to wireless backhaul links sends information to a destination via an untrusted relay that not only helps the overall commutation but also overhears the sources confidential information.
Van Phu Tuan, Hyung Yun Kong
exaly   +3 more sources

Performance Analysis of Cooperative Wireless Networks With Unreliable Backhaul Links

IEEE Communications Letters, 2015
A cooperative wireless network, where a cluster of $K$ single-antenna transmitters jointly serve a single-antenna receiver, is considered. Each transmitter is connected to the control unit (CU) via independent but unreliable backhaul links. The CU sends a common message to each transmitter over backhaul links, which upon successful reception ...
Philip V Orlik   +2 more
exaly   +2 more sources

Cognitive Heterogeneous Networks with Unreliable Backhaul Connections

Mobile Networks and Applications, 2017
To enhance the spectrum scarcity of cooperative heterogeneous networks (HetNets) with unreliable backhaul connections, we examine the impact of cognitive spectrum sharing over multiple small-cell transmitters in Nakagami-m fading channels. In this system, the secondary transmitters are connected to macro-cell via wireless backhaul links and communicate
Huy T. Nguyen 0001   +3 more
openaire   +2 more sources

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