Improving Fairness in Wireless Ad Hoc Networks by Channel Access Sensing at Link Layer and Packet Rate Control

Tuan, Nguyen Minh; Watabe, Kohei; Giang, Pham Thanh; Nakagawa, Kenji

doi:10.1587/transcom.2016ebp3359

Cited by 3 publications

(7 citation statements)

References 17 publications

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“…If fairness considerations are incorporated, the efficiency of the system is likely to decrease. The tradeoff between fairness and system efficiency is a common issue and concerns not only communication systems [2,9,12,14]. The efficiency loss (i.e., the difference between the maximum system efficiency and the efficiency under the fair scheme) relative to the maximum system efficiency can represent the "price of fairness" [3].…”

Section: Unfairness Of Network Accessmentioning

confidence: 99%

“…Fairness is a concept generally attributed to allocation of limited resources among a set of agents or individuals [1]. The importance of fairness issues in resource allocation has been recognized and well studied in a variety of research problems [1][2][3][4], along with applications in network engineering [5][6][7][8][9]. For communication services, a problem of fair sharing concerns all scarce resources, including link and flow scheduling, channel assignment, rate allocation, congestion control and routing protocols [5].…”

Section: Introductionmentioning

confidence: 99%

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Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks

Miśkowicz

2021

Sensors

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This paper is focused on the analysis of unfairness of random media access in Local Operating Networks (LON), which is one of the commercial platforms of the Industrial Internet of Things (IIoT). The unfairness in accessing the LON channel is introduced by a collision avoidance mechanism in the predictive p-persistent CSMA protocol adopted at the media access control layer. The study on the bandwidth share in predictive p-persistent CSMA calls for the analysis of multiple memoryless backoff. In this paper, it is shown that the channel access in LON systems is unfair in the short term for medium traffic load conditions, and in the long term for heavy loaded networks. Furthermore, it is explained that the average bandwidth allocated to a particular node is determined implicitly by the load scenario, while an actual node bandwidth fluctuates in time according to stochastic dynamics of the predictive p-persistent CSMA. Next, it is formally proven that the average bandwidth available to a node is a linear function of its backoff state and does not depend on backoff states of the other stations. Finally, it is demonstrated that possibly unfair bandwidth share in LON networks determined implicitly by load scenario is stable because, with lowering a fraction of actual network bandwidth accessible by a given station, the probability to decrease it in the future also drops.

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Section: Unfairness Of Network Accessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks

Miśkowicz

2021

Sensors

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“…The design of these protocols is very challenging compared to wired protocols due to half-duplex operation, time-varying channel and burst-channel errors. Apart from this, MAC layer suffers from well-known issues, such as the hidden terminal problem [27], expose terminal problem [28], capture terminal problem [29], extended inter-frame space problem [30] and the three-pair scenario problem [6].…”

Section: Quality Of Service Degradationmentioning

confidence: 99%

“…Moreover, BEB has no capability of providing QoS to forwarding flows, prioritization and on-time delivery of critical data. Note that, there is always a trade-off between throughput and fairness in a multi-hop wireless ad hoc networks [6]. The aforementioned challenges are due to the limitations of DCF because it cannot guarantee QoS due to the random access nature of BEB.…”

Section: Introductionmentioning

confidence: 99%

A Quality of Service-Aware Secured Communication Scheme for Internet of Things-Based Networks

Khan

Rehman

Yahya

et al. 2019

Sensors

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The Internet of Things (IoT) is an emerging technology that aims to enable the interconnection of a large number of smart devices and heterogeneous networks. Ad hoc networks play an important role in the designing of IoT-enabled platforms due to their efficient, flexible, low-cost and dynamic infrastructures. These networks utilize the available resources efficiently to maintain the Quality of Service (QoS) in a multi-hop communication. However, in a multi-hop communication, the relay nodes can be malicious, thus requiring a secured and reliable data transmission. In this paper, we propose a QoS-aware secured communication scheme for IoT-based networks (QoS-IoT). In QoS-IoT, a Sybil attack detection mechanism is used for the identification of Sybil nodes and their forged identities in multi-hop communication. After Sybil nodes detection, an optimal contention window (CW) is selected for QoS provisioning, that is, to achieve per-flow fairness and efficient utilization of the available bandwidth. In a multi-hop communication, the medium access control (MAC) layer protocols do not perform well in terms of fairness and throughput, especially when the nodes generate a large amount of data. It is because the MAC layer has no capability of providing QoS to prioritized or forwarding flows. We evaluate the performance of QoS-IoT in terms of Sybil attack detection, fairness, throughput and buffer utilization. The simulation results show that the proposed scheme outperforms the existing schemes and significantly enhances the performance of the network with a large volume of data. Moreover, the proposed scheme is resilient against Sybil attack.

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“…The design of these protocols is very challenging compared to wired protocols due to half-duplex operation, time-varying channel, and burst-channel errors. Apart from this, MAC layer suffers from well-known issues, such as hidden terminal problem [20], expose terminal problem [21], capture terminal problem [22], extended inter-frame space problem [23], and the three-pair scenario problem [6].…”

Section: Problems At the Mac Layermentioning

confidence: 99%

A QoS-aware Secured Communication Scheme for IoT-based Networks

Khan¹,

Au²,

Yahya³

et al. 2019

Preprint

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The Internet of Things (IoT) is an emerging technology that aims to enable the interconnection of a large number of smart devices and heterogeneous networks. Ad hoc networks play an important role in the designing of IoT-enabled platforms due to their efficient, flexible, low-cost, and dynamic infrastructures. These networks utilize the available resources efficiently to maintain the Quality of Service (QoS) in a multi-hop communication. However, in a multi-hop communication, the relay nodes can be malicious, thus requiring a secured and reliable data transmission. In this paper, we propose a QoS-aware secured communication scheme for IoT-based networks (QoS-IoT). In QoS-IoT, a Sybil attack detection mechanism is used for the identification of Sybil nodes and their forged identities in multi-hop communication. %by high-power and mobile nodes. After Sybil nodes detection, an optimal contention window (CW) is selected for QoS provisioning, i.e., to achieve per-flow fairness and efficient utilization of the available bandwidth. In a multi-hop communication, the MAC layer protocols do not perform well in terms of fairness and throughput, especially when the nodes generate a large amount of data. It is because the MAC layer has no capability of providing QoS to prioritized or forwarding flows. We evaluate the performance of QoS-IoT in terms of Sybil attack detection, fairness, throughput, and buffer utilization. The simulation results show that the proposed scheme outperforms the existing schemes and significantly enhances the performance of the network with a large volume of data. Moreover, the proposed scheme is resilient against Sybil attack.

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Improving Fairness in Wireless Ad Hoc Networks by Channel Access Sensing at Link Layer and Packet Rate Control

Cited by 3 publications

References 17 publications

Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks

Unfairness of Random Access with Collision Avoidance in Industrial Internet of Things Networks

A Quality of Service-Aware Secured Communication Scheme for Internet of Things-Based Networks

A QoS-aware Secured Communication Scheme for IoT-based Networks

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