On Relationship between Timeout and Latency of Connection Re-establishment for Control Packet Loss Scenario in Bluetooth MANETs

2018 ◽  
Author(s):  
Temma Ohtani ◽  
Eitaro Kohno ◽  
Yoshiaki Kakuda
Keyword(s):  
Packet Loss ◽  
Control Packet

scholarly journals An MPTCP-Based Transmission Scheme for Improving the Control Stability of Unmanned Aerial Vehicles

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2791
Author(s):  
Woonghee Lee ◽  
Joon Yeop Lee ◽  
Hyeontae Joo ◽  
Hwangnam Kim
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Packet Loss ◽  
Integrated Management ◽  
Management Program ◽  
Packet Transmission ◽  
Transmission Scheme ◽  
Control Packet ◽  
Aerial Vehicles ◽  
Environment Control ◽  
Control Packets

Recently, unmanned aerial vehicles (UAVs) have been applied to various applications. In order to perform repetitive and accurate tasks with a UAV, it is more efficient for the operator to perform the tasks through an integrated management program rather than controlling the UAVs one by one through a controller. In this environment, control packets must be reliably delivered to the UAV to perform missions stably. However, wireless communication is at risk of packet loss or packet delay. Typical network communications can respond to situations in which packets are lost by retransmitting lost packets. However, in the case of UAV control, delay due to retransmission is fatal, so control packet loss and delay should not occur. As UAVs move quickly, there is a high risk of accidents if control packets are lost or delayed. In order to stably control a UAV by transmitting control messages, we propose a control packet transmission scheme, ConClone. ConClone replicates control packets and then transmits them over multiple network connections to increase the probability of successful control packet transmission. We implemented ConClone using real equipment, and we verified its performance through experiments and theoretical analysis.

scholarly journals An Adaptive Connection-Establishment Timeout Configuration Method for Bluetooth MANETs in Control Packet Loss Environments

2020 ◽  
Vol 10 (1) ◽  
pp. 25-43
Author(s):  
Temma Ohtani ◽  
Eitaro Kohno ◽  
Akifumi Nomasaki ◽  
Yoshiaki Kakuda
Keyword(s):  
Packet Loss ◽  
Control Packet

VPN Packet Loss-Oriented Dynamic Control

2013 ◽  
Vol 340 ◽  
pp. 710-714
Author(s):  
Song Li ◽  
Qian Zou ◽  
Wei Huang
Keyword(s):  
Packet Loss ◽  
Dynamic Control ◽  
Virtual Private Network ◽  
Feature Model ◽  
Topological Feature ◽  
Data Confidentiality ◽  
Control Packet ◽  
Traffic Characteristics ◽  
Safety Technology ◽  
Private Network

Through security protocols and virtual private network tunneling for data confidentiality, message integrity, and endpoint authentication. Users can access anywhere Internet VPN service within the group. VPN tunneling technology VPN gateway group is exposed to internal services in the Internet, malicious users are using client terminal allows officers to attack the internal services group. So we must study to the control is based on the model, combined with VPN network traffic characteristics, the topological feature model of security and safety technology and related technologies. Study on dynamic access control packet loss model in this article, you can study can greatly increase VPN security, confidentiality of data on. Due to the introduction of the concept of dynamic control, we can more accurately control the packet loss and improve system performance.

scholarly journals Hybrid SDN Performance: Switching between Centralized and Distributed Modes under Unreliable Control Communication Channels

2021 ◽  
Vol 10 (3) ◽  
pp. 57
Author(s):  
Mohammed Osman ◽  
Josep Mangues-Bafalluy
Keyword(s):  
Packet Loss ◽  
Network Performance ◽  
Communication Channels ◽  
Cost Effective ◽  
Packet Losses ◽  
Control Packet ◽  
Network Operation ◽  
Channel Packet ◽  
The Impact ◽  
Hybrid Sdn

Software-defined networking generally assumes ideal control channels between controller and network nodes. This may not be the case in challenged environments that are becoming more common due to dense and reduced-coverage 5G deployments and use cases requiring cost-effective wireless transport networks. In this paper, we evaluate the impact on network performance of unreliable controller-to-node communication channels, propose a hybrid SDN (hSDN) solution that switches between centralized and distributed operational modes depending on network conditions, and evaluate this solution under a variety of network scenarios (e.g., link impairments or packet loss ratios) designed to assess its operational limits. The results show that the proposed solution substantially improved the aggregated throughput, particularly when control channel packet loss ratios increased, while only showing a slight increase in average latency (e.g., 28% throughput improvement for 20% control packet losses). This enables network operation in hard conditions under which a canonical centralized SDN control would result in a nonoperational network.

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