دسته بندی:
اینترنت اشیاء - Internet of Things
سال انتشار:
2022
عنوان انگلیسی مقاله:
A new DTN routing strategies ensuring high message delivery ratio while keeping low power consumption
ترجمه فارسی عنوان مقاله:
یک استراتژی جدید مسیریابی DTN با تضمین نسبت تحویل پیام بالا و مصرف کم انرژی
منبع:
ScienceDirect- Elsevier- Internet of Things, 17 (2022) 100463: doi:10:1016/j:iot:2021:100463
نویسنده:
Gao Qiang
چکیده انگلیسی:
This study proposes Delay/Disruption Tolerant Networking (DTN) routing strategies for disaster
information delivery under the existence of obstacles that are based on the message relay
decision (MRD) method. The proposed methods include a new added obstacle detection
procedure to deliver messages to destinations while bypassing the obstacles. Efficient and
precise relief activities are required immediately after disasters, and it is well known that
obstacles appearing after a disaster will degrade message forwarding performance. Hence, the
proposed schemes maintain communication performance by using a node to detect the existence
of obstacles around itself. If there are obstacles, the message strategy is altered to bypass
the obstacle. In this study, human-beings are the main mobile nodes and mobile phones are
the creators and forwarders of messages. A multiple obstacle model is used to evaluate the
schemes in terms of obstacle-resistance. Three routing schemes are proposed: MRD with area
increase (MRDAI), Sub-Relay Station (SRS), and Adapted Predict Obstacle (APO). This model
tests MRDAI and SRS at the macro level and APO under the existence of concave obstacles. The
MRDAI scheme could autonomously perceive the existence of a huge obstacle and intelligently
enlarge the original message relay area. The SRS scheme could re-establish sub-relay areas
based on MRDAI. The APO scheme demonstrated resistance to concave obstacles, stability
(less affected by environmental changes), and a high delivery ratio while ensuring low energy
consumption. These proposed strategies for information delivery in a disaster area can be used
to launch rescue activities more quickly.
Keywords: DTN | Routing strategy | Disaster information | Avoiding obstacles
قیمت: رایگان
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