Multi-User Queuing Analysis Considering AMC for Wireless VoIP Services

Lee, H.; Cho, D.-H.

doi:10.1109/iccw.2009.5208097

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…The AMC has been adopted with four different modulation techniques with convolutional coding under dynamic traffic conditions. Another framework was proposed by considering the finite length queuing in wireless systems with AMC for multi-user VoIP (Lee and Cho, 2009). An uplink VoIP system has been formulated with a two-dimensional DTMC-based MMPP for multimedia services.…”

Section: Introductionmentioning

confidence: 99%

Cross-Layer Design for Combining Adaptive Modulation and Coding with DMMPP Queuing for Wireless Networks

Arunachalam,

Babu,

Perumal

et al. 2023

Journal of Computer Science

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Resource management and Quality of Service (QoS) are seen as key concerns for many applications in 5G networks since they support millions of linked devices. When sharing information over error-prone wireless networks, these resource management strategies are necessary to fulfill multimedia applications with a minimum throughput guarantee, low error probability, and high tolerated delay. One of the most complex traffic management strategies that provide fair QoS for channel users is queuing. According to queuing research, Adaptive Modulation and Coding (AMC) functions well when the buffer does not overflow. The typical AMC must be revised together with the queuing process when there is an overflow to lower the Packet Error Rate (PER) and Packet Dropping Probability (PDP) and to reach a higher level of reliability. This article proposed a cross-layer strategy that combines the novel queuing model dynamic Markov Modulated Poisson Process (dMMPP) with AMC at the physical layer to ensure the QoS to the admitted uses in the channel. Simulation results prove that the cross-layer design combined with queuing offers better throughput and optimized delay over a channel during the call.

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Section: Introductionmentioning

confidence: 99%

Cross-Layer Design for Combining Adaptive Modulation and Coding with DMMPP Queuing for Wireless Networks

Arunachalam,

Babu,

Perumal

et al. 2023

Journal of Computer Science

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Context-Aware Uplink Resource Allocation Using Request Header Information for ertPS Services in IEEE 802.16e Networks

Wang

Tsai

Ting

2015

Wireless Pers Commun

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Joint Call and Packet Level Performance Analysis of CAC Strategies for VoIP Traffic in Wireless

Castellanos-Lopez

Rivero-Ángeles

Hernandez-Valdez³

et al. 2011

2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

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Call admission control (CAC) functionality is a critical requirement for guarantee the desired quality of service (QoS) for voice calls in IP-based wireless networks. In this paper, three different CAC strategies for voice over IP (VoIP) traffic over wireless access networks with packet buffering are mathematically analyzed through a joint call and packet level discrete time teletraffic model. The admission criterion (i.e., admission threshold) of new sessions of these strategies is based on either the total number of sessions, the number of active sessions (i.e., sessions in talk-spurt periods), or the number of packets queued in the buffer. Admission threshold and buffer size can be both controlled for QoS provisioning in terms of session blocking and packet dropping probabilities. Arrivals and completions of VoIP sessions, on/off activity detection, and periodic and constant length packet generation (of active sessions) of individual VoIP sessions are modeled. The developed teletraffic analysis allows to evaluate the performance of the CAC strategies in terms of the most relevant QoS metrics of VoIP traffic at both call and packet level (i.e., session blocking and packet dropping probabilities and packet delay). Finally, the maximum traffic attained by the different studied-CAC strategies (while QoS provisioning is guaranteed) is obtained.Keywords-Call admission control; VoIP; joint call and packet level analysis; QoS provisioning; voice activity detection; session blocking; packet dropping probability; packet delay.

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Multi-User Queuing Analysis Considering AMC for Wireless VoIP Services

Cited by 4 publications

References 13 publications

Cross-Layer Design for Combining Adaptive Modulation and Coding with DMMPP Queuing for Wireless Networks

Cross-Layer Design for Combining Adaptive Modulation and Coding with DMMPP Queuing for Wireless Networks

Context-Aware Uplink Resource Allocation Using Request Header Information for ertPS Services in IEEE 802.16e Networks

Joint Call and Packet Level Performance Analysis of CAC Strategies for VoIP Traffic in Wireless

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