Optimal resource allocation for hybrid interweave-underlay cognitive SatCom uplink

Cognitive satellite terrestrial networks have received widespread attention recently for improving the spectrum utilization. In this paper, a hybrid interweave-underlay spectrum access (HIUSA) scheme based on spectrum sensing in 5GHz license-exempt spectrum is proposed, which eliminates the performa...

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Bibliographic Details
Published in2018 IEEE Wireless Communications and Networking Conference (WCNC) pp. 1 - 6
Main Authors Zuo, PeiLiang, Peng, Tao, Linghu, Wangdan, Wang, Wenbo
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2018
Subjects
Conferences
Interference
Satellites
Sensors
Uplink
Wireless fidelity
Online AccessGet full text
ISSN1558-2612
DOI10.1109/WCNC.2018.8377022

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Summary:Cognitive satellite terrestrial networks have received widespread attention recently for improving the spectrum utilization. In this paper, a hybrid interweave-underlay spectrum access (HIUSA) scheme based on spectrum sensing in 5GHz license-exempt spectrum is proposed, which eliminates the performance degradation brought by inaccurate parameters estimation of the interference link in a large extent, and enhances the throughput of the cognitive system substantially. While analyzing relevant details, we also focus on the resource allocation (RA) problem in this scenario, the RA problem takes the maximum throughput of the cognitive satellite communications (SatCom) as target, and subjects to the requirements of cognitive terminals. Then, the convex RA problem is solved by a simplified iteration algorithm. Extensive simulation results are given to demonstrate the performance and effectiveness of the proposed HIUSA scheme as well as the RA approach, by contrasting with the legacy system as well as the common method.
ISSN:1558-2612
DOI:10.1109/WCNC.2018.8377022