Abstract
In this paper, we investigate the auction-based secondary relay selection on overlay spectrum sharing in hybrid satellite–terrestrial sensor networks (HSTSNs), where both the decode-and-forward (DF) and amplify-and-forward (AF) relay protocols are analyzed based on time division multiple access (TDMA). As both the primary and secondary networks are rational, honest but with incomplete network information, they prefer to obtain maximum possibility payoffs by the cooperation between the primary and secondary networks, and the competition among secondary networks. Hence, Vickery auction is introduced to achieve the effective and efficient secondary relay selection by distinct sub-time slot allocation for one shot in terms of a distributed manner. Finally, numerical simulations are provided to validate the effectiveness of the auction mechanism on cooperative spectrum sharing in HSTSNs for secondary relay selection. Besides, the effect of key factors on the performance of the auction mechanism are analyzed in details.
Highlights
Sensor networks are important enablers in a wide range of applications, such as the Internet of Things (IoT), environmental sensing, remote health monitoring, and environmental monitoring [1,2].Massive Machine-type communications are classified as an identical scenario in 5G by the International Telecommunications Union (ITU) [3], where sensor networks are seen as typical applications
For practical application of such a complex scheme, channel state information (CSI) of all relay-destination and satellite-relay links is required at the satellite, which is provided by using feedback from the destination to the satellite
For the link between the satellite and the relay Rk, the channel gain is modeled as GSRk = LSRk Gr Gs h2SR, k where LSRk is the free space loss, Gr and Gs are the terrestrial receiver and satellite transmitter antenna gains, respectively, hSRk is the small scale of fading, undergoing the Shadowed-Rice distribution [41,42,43]
Summary
Sensor networks are important enablers in a wide range of applications, such as the Internet of Things (IoT), environmental sensing, remote health monitoring, and environmental monitoring [1,2]. Firstly proposed the overlay paradigm in hybrid satellite–terrestrial networks (HSTNs), in which the secondary terrestrial users assist the primary satellite transmission through cooperative relaying techniques in exchange for spectrum access. Investigated the overlay paradigm into the holistic 5G system Those two works mainly focus on the terrestrial network, which is unable to apply in the HSTNs directly. We investigate the Vickery auction-based secondary relay selection for cooperative overlay spectrum sharing in HSTSNs. Especially, the potential relay would be the base-stations (BS) of the 5G, device-to-device (D2D) nodes or other ad-hoc networks, which are capable of applying the unlicensed frequency band.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
