Congestion Control in CoAP Observe Group Communication

Suwannapong, Chanwit; Khunboa, Chatchai

doi:10.3390/s19153433

Cited by 28 publications

(16 citation statements)

References 23 publications

(26 reference statements)

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“…According to [ 46 ] protocols such as CoAP that are based on UDP have a tendency to lose more packets when the amount of ongoing traffic is too high. They demonstrated this in a similar test scenario to the one demonstrated in this paper.…”

Section: Discussionmentioning

confidence: 99%

UIOT-FMT: A Universal Format for Collection and Aggregation of Data from Smart Devices

Seljeseth

Yamin

Katt

2020

Sensors

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Information Technology (IT) has become an essential part of our lives and due to the emergence of the Internet-of-Things (IoT), technology has encompassed a majority of things that humans rely on in their daily lives. Furthermore, as IT becomes more relevant in daily lives, the need for IT to serve public emergency services has become more important. However, due to the infancy status of IoT, there is a need for a data consortium that would prove to be best used in servicing policing in a technological driven society. This paper will discuss the plausibility of creating a universal format for use in carrying out public services, such as emergency response by the police and regular law maintenance. In this research we will discuss what the police requires in their line-of-duty and how smart devices can be used to satisfy those needs. A data formatting framework is developed and demonstrated, with the goal of showing what can be done to unifying data from smart city sensors.

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Section: Discussionmentioning

confidence: 99%

UIOT-FMT: A Universal Format for Collection and Aggregation of Data from Smart Devices

Seljeseth

Yamin

Katt

2020

Sensors

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“…According to [35] protocols such as CoAP that are based on UDP have a tendency to lose more packets when the amount of ongoing traffic is too high. They demonstrated this in a similar test scenario to the one demonstrated in this paper.…”

Section: Reliability Evaluationmentioning

confidence: 99%

UIOT-FMT: A Universal Format for Collection and Aggregation of Data from Smart Devices

Seljeseth

Yamin

Katt

2020

Preprint

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Information Technology (IT) has become an essential part of our lives and due to the emergence of Internet-of-Things (IoT), technology has encompassed a majority of things that humans rely on in their daily lives. Further, as IT becomes more relevant in daily lives, the need for IT to serve public emergency services has become more important. However, due to the infancy status of IoT, there is a need for a data consortium that would prove to be best used in servicing policing in a technological driven society. This paper will discuss the plausibility of creating a universal format for use in carrying out public services, such as emergency response by the police and regular law maintenance. In this research we will discuss what the police requires in their line-of-duty and how smart devices can be used to satisfy those needs. A data formatting framework is developed and demonstrated, with the goal of showing what can be done to unifying data from smart city sensors.

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“…The primary task of IoT devices is to collect data from the physical environment and send the requested data to the server. Today, many IoT applications rely not only on the occasional transmission of small payloads from IoT devices but also must transfer large blocks of collected data to the server, resulting in an enormous amount of traffic in the network [1], [2]. Transmission control of such traffic is inevitable for alleviating the network congestion.…”

Section: Introductionmentioning

confidence: 99%

RCOAP: A Rate Control Scheme for Reliable Bursty Data Transfer in IoT Networks

Hoang

2021

IEEE Access

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The Internet Engineering Task Force (IETF) standardized the Constrained Application Protocol (CoAP) for Internet of Things (IoT) devices to meet the demands of IoT applications. Due to the constrained IoT environment, CoAP was designed based on UDP as a lightweight protocol with simple congestion control, which leverages the basic binary exponential backoff. However, the basic congestion control of CoAP is unable to effectively perform reliable bursty data transfer in IoT networks. Recent studies have indicated that CoAP and its modifications still suffer from critical performance problems regarding congestion control, throughput, and delay. The current congestion control of the CoAP does not support bursty data transfer. In contrast to the current schemes that focus on a loss-based mechanism and a retransmission time-out (RTO) calculation, we propose a new rate control scheme, RCOAP, for reliable bursty data transfer in IoT networks. RCOAP uses the concept of regulating the transmission rate of CoAP sources. The key features of RCOAP are 1) estimating the initial sending rate by probing the bottleneck bandwidth, 2) adjusting the sending rate according to the dynamic network condition, and 3) distinguishing between losses due to congestion and losses due to wireless errors for the purpose of maintaining high throughput. Simulation results indicate that RCOAP is suitable for bursty data transfer. RCOAP shows a throughput increase of approximately 135% compared to the basic CoAP, CoCoA, and CoCoA+ under the same conditions while maintaining a low delay, loss rate, and a low number of retransmission attempts.

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Congestion Control in CoAP Observe Group Communication

Cited by 28 publications

References 23 publications

UIOT-FMT: A Universal Format for Collection and Aggregation of Data from Smart Devices

UIOT-FMT: A Universal Format for Collection and Aggregation of Data from Smart Devices

UIOT-FMT: A Universal Format for Collection and Aggregation of Data from Smart Devices

RCOAP: A Rate Control Scheme for Reliable Bursty Data Transfer in IoT Networks

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