Abstract
Sensors in the Internet of Things (IoT) generate large amounts of data, which requires high-speed data transmission. In order to achieve the parallel transmissions of the wireless sensor network on the transmission layer, the performance of stream control transmission protocol (SCTP) and transmission control protocol (TCP) in the wireless sensor network under different packet error rates was simulated and compared. A dynamic multipath handover method for SCTP (MS-SCTP) was proposed to improve the transmission performance, which selects the transmission path according to the packet error rate and the retransmission ratio in the sender’s buffer. The TCP and SCTP protocol switching method (TCP-SCTP) was proposed to detect the current network traffic and adjust the MS-SCTP or TCP method. Analysis and simulation results show that MS-SCTP and TCP-SCTP could improve network throughput and reduce packet loss rate. MS-SCTP and TCP-SCTP can be combined with other technologies and channel allocation algorithms to improve network traffic.
Highlights
The Internet of Things (IoT) [1] is an important part of the new generation of information technology and an important stage of development in the "information" era
Data generated by sensors in the Internet of Things and geographic information system (GIS) need to be transmitted over heterogeneous wireless wired networks
The transmission stability of stream control transmission protocol (SCTP) is worse than transmission control protocol (TCP), and it takes a longer time to build the connection than TCP
Summary
The Internet of Things (IoT) [1] is an important part of the new generation of information technology and an important stage of development in the "information" era. A great deal of real-time data generated by sensors need to be scheduled [2] and securely transmitted [3] to the sink nodes through wireless or wired networks. Distributed sensors are deployed in different areas, and the data are harvested in distributed sink nodes These data need to be transmitted to one or more certain destinations through heterogeneous networks. Software defined network (SDN) based sensor network [7] can balance the data transfer congestions in the IoT environments by the centralized scheduling. In these scenarios, the techniques of methods all require high speed and high performance wired or Sensors 2019, 19, 2005; doi:10.3390/s19092005 www.mdpi.com/journal/sensors
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