Markov Model for Admission Control in the Wireless AMC Networks

Kwon, Eunhyun; Yeon, Hun Je; Lee, Jaiyong; Jung, Kyunghun

doi:10.1093/ietcom/e89-b.8.2230

Cited by 6 publications

(11 citation statements)

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“…A modulation scheme-based admission control algorithm was proposed in [12]. In [13] the authors used handoffs, modulation schemes, and new connection requests together to decide whether to admit a connection or not. The number of available slots and the minimum reserve traffic rate is used to decide whether to admit a connection or not.…”

Section: Related Work In Admission Controlmentioning

confidence: 99%

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Novel, graded, priority-oriented admission control in mobile networks

Algur¹,

Kumar²

2016

Turk J Elec Eng & Comp Sci

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Abstract:Call admission control plays a crucial role in providing quality of service to the different services in mobile broadband networks (WiMAX, LTE). A new connection is admitted only when the network can support the QoS needs of the connection without degrading the QoS for existing connections. An efficient call admission control algorithm ensures higher throughput and fewer delays for the admitted connections. In this paper a graded priority-based call admission control algorithm is proposed for LTE and WiMAX networks. The number of permissible connections shall be segregated into two classes. The new connection shall be graded, prioritized, and admitted based on the device requesting the connection. Simulation results show that graded priority-based admission control algorithm improves the connection admission rate from 3% to as high as 30% for select users. This results in higher throughput for priority users.

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Section: Related Work In Admission Controlmentioning

confidence: 99%

“…Hence, P 1A = P 0A * P AA + P 0B * P BA + P 0C * P CA P 1B = P 0A * P AB + P 0B * P BB + P 0C * P CB P 1C = P 0A * P AC + P 0B * P BC + P 0C * P CC (13) State S2 is calculated using S1 as shown in Eq. (14).…”

Section: Reqbw ≤ M Inimumreservet Raf F Icrate Rt P Smentioning

confidence: 99%

Novel, graded, priority-oriented admission control in mobile networks

Algur¹,

Kumar²

2016

Turk J Elec Eng & Comp Sci

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“…Kwon et al . are the first to model a mobile WiMAX system with AMC. The authors propose a modified guard channel scheme that allows both types of active calls—modulation‐changed and handoff—to use a guard capacity explicitly reserved for them.…”

Section: Relevant Literaturementioning

confidence: 99%

“…with a given SNR). This analytical abstraction has been validated through simulations in a number of WiMAX studies and widely used in previous research works that address different aspects of wireless communication networks . The assumed propagation model is based on the premise that the signal quality of the wireless link depends mainly on the distance between a transmitter and a receiver.…”

Section: System Modellingmentioning

confidence: 99%

“…Each of them has different QoS requirements and hence it seems reasonable to expect that operators will use different classes of AC strategies—complete sharing, complete partitioning and combinations of these—for the different service classes. Because the unsolicited grant service (UGS) WiMAX class, which corresponds to the studied in this work fixed‐rate service with hard delay constraints, has the most stringent QoS requirements among the WiMAX service classes, system resources can be divided into two separate pools: one explicitly for the UGS class and the other one for the other WiMAX classes. The latter pool can be managed by a class of complete sharing with priority algorithms pertinent to the traffic characteristics of the services.…”

Section: System Modellingmentioning

confidence: 99%

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Effect of AMC on fixed-rate traffic with hard delay constraints in mobile broadband systems

Vassileva

Koucheryavy

2013

Wirel. Commun. Mob. Comput.

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The adaptive modulation and coding (AMC) technique, which has been adopted by advanced mobile telecommunication systems, supports a flexible response to the random radio behaviour. As a result, the attained transmission rate over a wireless link is time varying. Hence, resource demands are not deterministic but fluctuating even for calls with constant bit rate service requirements. Consequently, constant bit rate calls are susceptible to a forced call termination because of insufficient resources not only in a target cell during inter-cell handoffs but also in a serving cell during radio link deterioration. Furthermore, call blocking and dropping probabilities depend on radio propagation conditions among other factors and therefore they are dissimilar throughout a service area. The latter leads to unfairness problems. We analytically measure the impact of AMC on fixed-rate service with hard delay constraints such as voice for different signal, mobility and traffic conditions. We consider a reference case (call requests are admitted into the system provided there are enough free resources) and two classes of admission control approaches: traditional (only inter-cell handoffs are prioritised) and modified (all ongoing calls are prioritised). The reported results reveal conditions for which AMC affects voice call performance and can serve as guidelines on admission control design.

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Fair cut‐off prioritisation scheme for voice calls in mobile broadband systems

Vassileva

Koucheryavy

2013

Trans Emerging Tel Tech

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Advanced mobile communication systems have adopted the adaptive modulation and coding technique because it enables efficient use of the scarce radio resources. The resultant time-varying resource environment, however, is challenging for guaranteeing quality of service to fixed rate traffic with hard delay constraints such as voice. A fair cut-off prioritisation scheme that addresses both forced call interruption due to insufficient resources and call unfairness (high disparity between blocking as well as dropping probabilities) due to random propagation conditions is devised. The proposed scheme guarantees full fairness without sacrificing system communication capacity as demonstrated by numerical results. Copyright

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Markov Model for Admission Control in the Wireless AMC Networks

Cited by 6 publications

References 0 publications

Novel, graded, priority-oriented admission control in mobile networks

Novel, graded, priority-oriented admission control in mobile networks

Effect of AMC on fixed-rate traffic with hard delay constraints in mobile broadband systems

Fair cut‐off prioritisation scheme for voice calls in mobile broadband systems

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