Strategic Joining and Optimal Pricing in the Cognitive Radio System With Delay-Sensitive Secondary Users

Wang, Jinting; Zhang, Yu; Li, Wei Wayne

doi:10.1109/tccn.2017.2723900

Cited by 18 publications

(11 citation statements)

References 27 publications

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“…To summarize, the optimal pricing strategy for the system as well as the delay‐sensitive SUs' equilibrium behavior are investigated by applying an M/M/1 retrial queue with service interruptions to CR networks. In the literature, the related work on retrial queueing systems in CRNs is relatively scarce (see Wang & Li, ; Wang, Zhang, & Li, ; and the book by Hassin & Haviv, ; Hassin, and references therein). The main contributions of this article are summarized as follows. A novel CRN model is proposed where disrupted SUs and SUs arriving to a busy system are assumed to enter the retrial orbit, competing with other SUs in the same manner fairly.…”

Section: Introductionmentioning

confidence: 99%

Strategic spectrum occupancy for secondary users in cognitive radio networks with retrials

Wang

2017

Naval Research Logistics

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This article investigates joining strategies and admission control policy for secondary users (SUs) with retrial behavior in a cognitive radio (CR) system where a single primary user (PU) coexists with multiple SUs. Under a certain reward‐cost structure, SUs opportunistically access the PU band when it is not occupied by the PU. If the band is available upon arrival, an SU decides with a probability either to use the band immediately or to balk the system. If the band is occupied, the SU must decide whether to enter the system as a retrial customer or to leave the system. Once the PU requests for service, the service of SU being served, if any, will be interrupted, and the interrupted SU leaves the band and retries for service after a random amount of time. In this article, we study the equilibrium behavior of non‐cooperative SUs who want to maximize their benefit in a selfish, distributed manner with delay‐sensitive utility function. The socially optimal strategies of SUs are also derived. To utilize the PU band more efficiently and rationally, an admission control policy is proposed to regulate SUs who enter the system in order to eliminate the gap between the individually and socially optimal strategies.

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Section: Introductionmentioning

confidence: 99%

Strategic spectrum occupancy for secondary users in cognitive radio networks with retrials

Wang

2017

Naval Research Logistics

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“…When R k 0 is the transmitting relay, the PEP is given by (28) where the SINR PDF is given in (34) where we have to replace SR i by R i D and we replace R i D by SR i .…”

Section: Delay Analysis For Cognitive Radio Networkmentioning

confidence: 99%

“…Both PIP and AIP constraints are analyzed. Nodes with fixed transmit power (FTP) were investigated in Refs . ‐ Analyze the performance when power of secondary nodes is adaptive or fixed and there is interference from primary transmitter. The effects of interference were not taken into account in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…Both PIP and AIP constraints are analyzed. Nodes with fixed transmit power (FTP) were investigated in Refs [25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

“…Relaying was not considered in Refs [26][27][28][29][30]. In this article, we investigate the performance of reactive AF and partial AF relay selection techniques.…”

Section: Introductionmentioning

confidence: 99%

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Delay analysis for cognitive radio networks

Halima

Boujemâa

2018

IEEJ Transactions Elec Engng

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In this article, we derive the waiting time and total delay of packets for cooperative cognitive radio networks. In the primary network, there are primary transmitter (PT) and receiver (PR). In the secondary network, there are a source, M relays and a destination. Our results are valid for any number of relays and different relaying protocols: opportunistic amplify and forward (AF), partial AF, reactive AF and reactive DF. The analysis is carried out for nodes with fixed and adaptive transmit power. For fixed transmit power (FTP), we cannot guarantee that interference to PR is less than threshold T. Therefore, some relays are inactive because they generate harmful interference to PR. For adaptive transmit power (ATP), the power of a relay node is fixed so that peak interference power (PIP) or average interference power (AIP) constraints are verified. We also take into account interference from the primary transmitter (PT) by analyzing the delays based on signal to interference plus noise ratio (SINR). © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Optimal spectrum utilisation in cognitive radio networks based on processor sharing techniques

Tsimba

Maharaj

Alfa

2019

Int J Communication

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Cognitive radio networks have achieved higher efficiency in terms of spectrum usage; however they do not readily solve any competition for access among secondary users. Optimisation is applied to an underlay network to obtain the optimal solution for at least two secondary users operating simultaneously on the same channel. Performance measures are used as the target for optimisation. However, the objective function is difficult to obtain in closed form. For the performance measures, queueing theory, particularly weighted processor sharing techniques are employed to model the system dynamics and behaviour.Transmission power and the interference temperature limit are used to allocate weights to the secondary users. Queue length and waiting time functions obtained from the queuing models are used for optimisation. After establishing that the objective function can be considered to be pseudo-convex, convex programming is then deployed to obtain the optimised solution. The results suggest that there is indeed an improvement in network performance after optimisation. The immediate benefits of such a system are firstly improved spectrum utilisation through adding multiple secondary users and secondly, through optimisation, higher performance that can be achieved by the secondary users.

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Strategic Joining and Optimal Pricing in the Cognitive Radio System With Delay-Sensitive Secondary Users

Cited by 18 publications

References 27 publications

Strategic spectrum occupancy for secondary users in cognitive radio networks with retrials

Strategic spectrum occupancy for secondary users in cognitive radio networks with retrials

Delay analysis for cognitive radio networks

Optimal spectrum utilisation in cognitive radio networks based on processor sharing techniques

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