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An energy-efficient transmission scheme for real-time data in wireless sensor networks.

Kim JW, Barrado JR, Jeon DK - Sensors (Basel) (2015)

Bottom Line: The IEEE 802.15.4 standard is one of the main communication protocols proposed for the IoT.In spite of some QoS features in IEEE 802.15.4 standard, the problem of end-to-end delay still remains.The simulation results demonstrate that the proposed scheme can improve the network performance.

View Article: PubMed Central - PubMed

Affiliation: Research Institute of Information Science and Engineering, Mokpo National University, Mokpo City 530-729, Korea. jjin300@gmail.com.

ABSTRACT
The Internet of things (IoT) is a novel paradigm where all things or objects in daily life can communicate with other devices and provide services over the Internet. Things or objects need identifying, sensing, networking and processing capabilities to make the IoT paradigm a reality. The IEEE 802.15.4 standard is one of the main communication protocols proposed for the IoT. The IEEE 802.15.4 standard provides the guaranteed time slot (GTS) mechanism that supports the quality of service (QoS) for the real-time data transmission. In spite of some QoS features in IEEE 802.15.4 standard, the problem of end-to-end delay still remains. In order to solve this problem, we propose a cooperative medium access scheme (MAC) protocol for real-time data transmission. We also evaluate the performance of the proposed scheme through simulation. The simulation results demonstrate that the proposed scheme can improve the network performance.

No MeSH data available.


Related in: MedlinePlus

The transmission success ratio versus the number of nodes.
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sensors-15-11628-f018: The transmission success ratio versus the number of nodes.

Mentions: Figure 18 shows the transmission success ratio as a function of the number of nodes. As shown in Figure 18, the proposed scheme provides a higher transmission success ratio than the IEEE 802.15.4 standard and ESS scheme since it can directly transmit data frame from the source device to the destination device without contention for channel access. However, the IEEE 802.15.4 standard and ESS scheme is hard to obtain the transmission opportunity due to the contention for channel access as the number of devices increases. Notably, because the ESS scheme transmits real-time data using GTS slots, if the number of devices which use GTS slots is more than 7, the ESS scheme cannot transmit data frames using GTS slots.


An energy-efficient transmission scheme for real-time data in wireless sensor networks.

Kim JW, Barrado JR, Jeon DK - Sensors (Basel) (2015)

The transmission success ratio versus the number of nodes.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4482012&req=5

sensors-15-11628-f018: The transmission success ratio versus the number of nodes.
Mentions: Figure 18 shows the transmission success ratio as a function of the number of nodes. As shown in Figure 18, the proposed scheme provides a higher transmission success ratio than the IEEE 802.15.4 standard and ESS scheme since it can directly transmit data frame from the source device to the destination device without contention for channel access. However, the IEEE 802.15.4 standard and ESS scheme is hard to obtain the transmission opportunity due to the contention for channel access as the number of devices increases. Notably, because the ESS scheme transmits real-time data using GTS slots, if the number of devices which use GTS slots is more than 7, the ESS scheme cannot transmit data frames using GTS slots.

Bottom Line: The IEEE 802.15.4 standard is one of the main communication protocols proposed for the IoT.In spite of some QoS features in IEEE 802.15.4 standard, the problem of end-to-end delay still remains.The simulation results demonstrate that the proposed scheme can improve the network performance.

View Article: PubMed Central - PubMed

Affiliation: Research Institute of Information Science and Engineering, Mokpo National University, Mokpo City 530-729, Korea. jjin300@gmail.com.

ABSTRACT
The Internet of things (IoT) is a novel paradigm where all things or objects in daily life can communicate with other devices and provide services over the Internet. Things or objects need identifying, sensing, networking and processing capabilities to make the IoT paradigm a reality. The IEEE 802.15.4 standard is one of the main communication protocols proposed for the IoT. The IEEE 802.15.4 standard provides the guaranteed time slot (GTS) mechanism that supports the quality of service (QoS) for the real-time data transmission. In spite of some QoS features in IEEE 802.15.4 standard, the problem of end-to-end delay still remains. In order to solve this problem, we propose a cooperative medium access scheme (MAC) protocol for real-time data transmission. We also evaluate the performance of the proposed scheme through simulation. The simulation results demonstrate that the proposed scheme can improve the network performance.

No MeSH data available.


Related in: MedlinePlus