Fairness and throughput improvement in multihop wireless ad hoc networks

Khan, Fazlullah

doi:10.1109/ccece.2014.6900980

Cited by 13 publications

(16 citation statements)

References 10 publications

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“…As a result, the forwarding flows get lesser chances to access the medium due to contention at MAC and link layers. Similar to our previous work [9], [10], and [11], in QoS-IoT, we…”

Section: Qos Aware Communicationmentioning

confidence: 72%

“…As a result, the transmission time for direct flow is almost double than the forwarding flows [12]. Moreover, link utilization is not good in long-chain topologies [11], circular topologies, and does not perform well on mobile topologies [10]. In [13], the authors proposed an analytical model that works only when the network is saturated.…”

Section: Related Workmentioning

confidence: 99%

“…The direct flow and forwarding flow contend in the outgoing buffer space at the link layer. The detail descriptions of the problems in first-in-first-out (FIFO) and round-robin scheduling algorithms can be studied from our previous work [9,10].…”

Section: Problems At the Link Layermentioning

confidence: 99%

“…However, not much attention is given to the security requirements for QoS provisioning in ad hoc networks, which is an important issue. In [9][10][11], we have studied the performance improvement in wireless ad hoc networks. However, we also did not consider the security requirements or the possible attacks on a network that may degrade the QoS.…”

Section: Introductionmentioning

confidence: 99%

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

Khan¹,

Au²,

Yahya³

et al. 2019

Preprint

Self Cite

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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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“…As a result, the forwarding flows get lesser chances to access the medium due to contention at MAC and link layers. Similar to our previous work [9], [10], and [11], in QoS-IoT, we…”

Section: Qos Aware Communicationmentioning

confidence: 72%

Section: Related Workmentioning

confidence: 99%

Section: Problems At the Link Layermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Khan¹,

Au²,

Yahya³

et al. 2019

Preprint

Self Cite

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“…In authors proposed algorithm single packet delay was enhanced, but end to end single packet delay is reduced due to minimal retransmissions. Similarly, some good work on mobile ad hoc and vehicular networks can be found in [10][11][12][13][14].…”

Section: Related Workmentioning

confidence: 99%

Performance and Execution Evaluation of VANETs Routing Protocols in different Scenarios

Rehman¹,

Khan²,

Begum³

et al. 2018

EAI Endorsed Transactions on Energy Web

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VANETs an application of MANETs, a fast growing, promising and emerging technology provides basis for ITS following IEEE 802.11p standard based on DSRC designed for WAVE. VANETs enable communication among vehicles (V2V) and road side infrastructure (V2I), disseminating alert messages regarding road conditions and any other critical situation to ensure safety and avoid losses of precious lives and property. Due to high velocity of moving vehicles and dynamic speedy topology change ultimate optimum routing protocols is still a challenging task in VANETs. It is cleared from the proposed results that there is no such protocol that is best for all kind of evaluation criteria. Infact, each routing algorithm conduct differently in sense of performance metrics. In VANETs timely arrival of data is much important to handle the security threats or any emergency efficiently. In this paper we focused and inspected various routing protocols including AODV, DSR and DSDV for the purpose to find out protocols best suited for all scenarios. The comparison and evaluation of various routing protocols is done on the basis of different performance metric criteria like data throughput, PDR, end to end delay or latency and network stability etc.

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