Statistical quality of service provisioning in multi‐user centralised networks

Efazati, Sara; Azmi, Paeiz

doi:10.1049/iet-com.2014.0344

IET Communications

2015

DOI: 10.1049/iet-com.2014.0344

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Statistical quality of service provisioning in multi‐user centralised networks

Sara Efazati¹,

Paeiz Azmi²

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Cited by 2 publications

(1 citation statement)

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“…Focusing on the stochastic nature of RF fading channels, many researchers derived ECs of RF-based cellular systems and heterogeneous systems. Relying on the derived ECs, they developed their QoS-guaranteed resource allocation algorithms [23]- [26]. Some of the above works focused on the downlink systems, while others focused on the uplink.…”

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Optimal ALOHA-Like Random Access With Heterogeneous QoS Guarantees for Multi-Packet Reception Aided Visible Light Communications

Zhao

Chi

Yang

2016

IEEE Trans. Wireless Commun.

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There is a paucity of random access protocols designed for alleviating collisions in visible light communication (VLC) systems, where carrier sensing is hard to be achieved due to the directionality of light. To resolve the problem of collisions, we adopt the successive interference cancellation (SIC) algorithm to enable the coordinator to simultaneously communicate with multiple devices, which is referred to as the multipacket reception (MPR) capability. However, the MPR capability could be fully utilized only when random access algorithms are properly designed. Considering the characteristics of the SIC aided random access VLC system, we propose a novel effective capacity (EC)-based ALOHA-like distributed random access algorithm for MPR-aided uplink VLC systems having heterogeneous quality-of-service (QoS) guarantees. Firstly, we model the VLC network as a conflict graph and derive the EC for each device. Then, we formulate the VLC QoS-guaranteed random access problem as a saturation throughput maximization problem subject to multiple statistical QoS constraints. Finally, the resultant non-concave optimization problem (OP) is solved by a memetic search algorithm relying on invasive weed optimization and differential evolution (IWO-DE). We demonstrate that our derived EC expression matches the Monte Carlo simulation results accurately, and the performance of our proposed algorithms is competitive. Index Terms-Visible light communication (VLC), multipacket reception (MPR), random access, heterogeneous QoS, effective capacity (EC), saturation throughput maximization.Linlin Zhao received her B.Eng. and M.S. degrees from the

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confidence: 99%

Optimal ALOHA-Like Random Access With Heterogeneous QoS Guarantees for Multi-Packet Reception Aided Visible Light Communications

Zhao

Chi

Yang

2016

IEEE Trans. Wireless Commun.

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Effective Capacity in Wireless Networks: A Comprehensive Survey

Amjad

Musavian

Rehmani

2019

IEEE Commun. Surv. Tutorials

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Low latency applications, such as multimedia communications, autonomous vehicles, and Tactile Internet are the emerging applications for next-generation wireless networks, such as 5th generation (5G) mobile networks. Existing physicallayer channel models, however, do not explicitly consider qualityof-service (QoS) aware related parameters under specific delay constraints. To investigate the performance of low-latency applications in future networks, a new mathematical framework is needed. Effective capacity (EC), which is a link-layer channel model with QoS-awareness, can be used to investigate the performance of wireless networks under certain statistical delay constraints. In this paper, we provide a comprehensive survey on existing works, that use the EC model in various wireless networks. We summarize the work related to EC for different networks such as cognitive radio networks (CRNs), cellular networks, relay networks, adhoc networks, and mesh networks. We explore five case studies encompassing EC operation with different design and architectural requirements. We survey various delay-sensitive applications such as voice and video with their EC analysis under certain delay constraints. We finally present the future research directions with open issues covering EC maximization.

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Statistical quality of service provisioning in multi‐user centralised networks

Cited by 2 publications

References 25 publications

Optimal ALOHA-Like Random Access With Heterogeneous QoS Guarantees for Multi-Packet Reception Aided Visible Light Communications

Optimal ALOHA-Like Random Access With Heterogeneous QoS Guarantees for Multi-Packet Reception Aided Visible Light Communications

Effective Capacity in Wireless Networks: A Comprehensive Survey

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