ADMM-Based Optimal Power Control for Cognitive Satellite Terrestrial Uplink Networks
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2875056
Abstract: This paper proposes an underlay power control scheme for cognitive satellite terrestrial uplink networks, where the primary terrestrial mobile network coexists with the secondary satellite communication network. In particular, the schemes are developed to guarantee… read more here.
Keywords: satellite; power; satellite terrestrial; terrestrial uplink ... See more keywords
Resource Allocation for Cognitive Satellite Communications Downlink
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2882795
Abstract: Cognitive satellite communications (SatCom) is considered to be able to alleviate the bottleneck of spectrum resource shortage due to traditional spectrum allocation. This paper focuses on a special scenario where the frequency band of SatCom… read more here.
Keywords: frequency; cognitive satellite; allocation; problem ... See more keywords
Effect of Imperfect Channel Estimation on the Performance of Cognitive Satellite Terrestrial Networks
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2939165
Abstract: The incorporation of cognitive radio (CR) techniques into satellite communication systems, has been considered as one of the most promising approaches to address the spectrum scarcity, which constitutes an advanced infrastructure known as cognitive satellite… read more here.
Keywords: satellite; performance; cognitive satellite; effect imperfect ... See more keywords
Cognitive Satellite Spectrum Management Scheme Based on the Cooperative Solidarity Values
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3003640
Abstract: With the rapid development of satellite services, the requirement for improving satellite spectrum efficiency has become significant, and attracted great attention from researchers and industry practitioners. Recently, cognitive satellite communication mechanism dynamically accesses idle bands… read more here.
Keywords: satellite spectrum; satellite; solidarity values; cognitive satellite ... See more keywords
Spectrum Allocation Scheme Based on Stable Matching in Hierarchical Cognitive Satellite Network
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3232324
Abstract: Aiming at the problem that the number of users and available bandwidth of the current satellite service are increasing significantly, and the spectrum utilization rate of the existing spectrum allocation scheme is low, this paper… read more here.
Keywords: stable matching; satellite; cognitive satellite; spectrum allocation ... See more keywords
Secure Multicast Communications in Cognitive Satellite-Terrestrial Networks
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DOI: 10.1109/lcomm.2019.2903054
Abstract: This letter studies a secure multicast transmission design for cognitive satellite-terrestrial networks with multiple multi-antenna eavesdroppers, where the satellite (SAT) delivers a common confidential message to a group of legitimate users and the interference from… read more here.
Keywords: multicast communications; terrestrial networks; secure multicast; communications cognitive ... See more keywords
Optimal Cooperative Transmission for Overlay Cognitive Satellite Terrestrial Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3131599
Abstract: In this letter, we investigate an overlay cognitive satellite terrestrial network, where the secondary terrestrial network cooperates with the primary satellite network for spectrum access in a time splitting manner. To maximize the spectrum efficiency… read more here.
Keywords: cognitive satellite; transmission; overlay cognitive; satellite terrestrial ... See more keywords
Secure Spectrum-Energy Efficiency Tradeoff Based on Stackelberg Game in a Two-Way Relay Cognitive Satellite Terrestrial Network
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2022.3172129
Abstract: In this letter, we consider a two-way relay cognitive satellite terrestrial network (CSTN) in the presence of a friendly jammer and an eavesdropper (Eve). In this system, we investigate the tradeoff between the secure spectrum… read more here.
Keywords: network; energy; cognitive satellite; based stackelberg ... See more keywords
Multi-Agent Deep Reinforcement Learning Based Transmission Latency Minimization for Delay-Sensitive Cognitive Satellite-UAV Networks
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3222460
Abstract: With the ubiquitous deployment of a massive number of Internet-of-Things (IoT) devices, the satellite-aerial networks are becoming a promising candidate to provide flexible and seamless service for IoT applications. Concerning about the spectrum scarcity issue,… read more here.
Keywords: delay sensitive; satellite; cognitive satellite; transmission latency ... See more keywords
Rate-Splitting Multiple Access-Enabled Security Analysis in Cognitive Satellite Terrestrial Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3192042
Abstract: In this paper, we investigate security and energy efficiency of multicast communication in cognitive satellite terrestrial networks. To achieve high spectrum efficiency and low interference power transmissions in the cognitive terrestrial network, the rate splitting… read more here.
Keywords: cognitive satellite; satellite terrestrial; security; terrestrial networks ... See more keywords
Active Reconfigurable Intelligent Surface Assisted Secure and Robust Cooperative Beamforming for Cognitive Satellite-Terrestrial Networks
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3221756
Abstract: This paper proposes a novel active reconfigurable intelligent surface (RIS) assisted secure and robust cooperative beamforming for cognitive satellite-terrestrial networks. Specifically, an active RIS enhances interference at an eavesdropper and reduces interference at a satellite… read more here.
Keywords: satellite; cognitive satellite; cooperative beamforming; satellite terrestrial ... See more keywords