On the Modeling and Performance of Three Opportunistic Spectrum Access Schemes

Tang, Pak Kay; Chew, Yong Huat

doi:10.1109/tvt.2010.2064794

Cited by 33 publications

(21 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [15], it is analyzed the performance of the secondary network in the cases with a finite user population. In [12], three spectrum access schemes are proposed and analyzed through CTMCs. However, channel assembling is not considered in that paper.…”

Section: Related Workmentioning

confidence: 99%

“…Summing up all the balance equations for states with |φ| = r, we have Eq. (12). Look at the service rate for states with r services on the left hand side of Eq.…”

Section: Appendix B Proof Of Propositionmentioning

confidence: 99%

“…The first phase is MAC protocol design itself, aiming at proposing feasible strategies in order to allow CRNs access spectrum in a more efficient way [2]- [11]. The second phase is to build analytical models in order to help us better understand the theory behind these protocols and evaluate the performance of different strategies [12]- [17]. In this study, we aim at the second phase and focus on the performance analysis of channel assembling.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling and Performance Analysis of Channel Assembling in Multichannel Cognitive Radio Networks With Spectrum Adaptation

Jiao

Pla

2012

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

Abstract-To accommodate spectrum access in multi-channel cognitive radio networks, channel assembling technique which combines several channels together as one channel has been proposed in many MAC protocols. However, analytical models for cognitive radio networks enabled with this technique have not been thoroughly investigated so far. In this paper, two representative channel assembling strategies are proposed considering spectrum adaptation and heterogeneous traffic, and the performance of these strategies is evaluated based on proposed continuous time Markov chain models. Moreover, approximations of these models in the quasi-stationary regime are analyzed and closedform capacity expressions are derived in different conditions. The performance of different strategies including the one without assembling is compared with each other based on the numerical results obtained from these models and validated by extensive simulations. Furthermore, simulation studies are also performed for other types of traffic distributions in order to evaluate the validity and the preciseness of the mathematical models. Through both analyses and simulations, we demonstrate that channel assembling represented by those investigated strategies can improve system performance if a proper strategy is selected with appropriate system parameter configurations.

show abstract

Section: Related Workmentioning

confidence: 99%

“…Summing up all the balance equations for states with |φ| = r, we have Eq. (12). Look at the service rate for states with r services on the left hand side of Eq.…”

Section: Appendix B Proof Of Propositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling and Performance Analysis of Channel Assembling in Multichannel Cognitive Radio Networks With Spectrum Adaptation

Jiao

Pla

2012

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

show abstract

“…No analytical expressions were derived for the forced termination probability and the throughput. In another controlled spectrum sharing scenario Tang et al (2006); Tang & Chew (2010), a number of channels are allocated for SU connections by the PU network. Under saturated condition an incoming PU connection can also occupy the secondary allocated channels.…”

Section: With Forced Terminationmentioning

confidence: 99%

Opportunistic Spectrum Access in Cognitive Radio Network

Ahmed¹,

Faulkner²,

Gao³

2012

Foundation of Cognitive Radio Systems

View full text Add to dashboard Cite

“…Buffering mechanism is proposed for the unlicensed subscriber. Prioritized unlicensed user traffic (i.e., high transmission rate and low transmission rate) is considered [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%