scholarly journals A Routing Protocol for Considering the Time Variant Mobility Model in Delay Tolerant Network

2012 ◽  
Vol E95-D (2) ◽  
pp. 451-461 ◽  
Author(s):  
Yong-Pyo KIM ◽  
Keisuke NAKANO ◽  
Kazuyuki MIYAKITA ◽  
Masakazu SENGOKU ◽  
Yong-Jin PARK
Keyword(s):  
Routing Protocol ◽  
Mobility Model ◽  
Delay Tolerant Network ◽  
Delay Tolerant

scholarly journals An Optimized Probabilistic Delay Tolerant Network (DTN) Routing Protocol Based on Scheduling Mechanism for Internet of Things (IoT)

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 243 ◽  
Author(s):  
Yuxin Mao ◽  
Chenqian Zhou ◽  
Yun Ling ◽  
Jaime Lloret
Keyword(s):  
Internet Of Things ◽  
Mobile Networks ◽  
Routing Protocol ◽  
Delay Tolerant Network ◽  
Iot Applications ◽  
Efficient Data ◽  
History Of ◽  
One Simulator ◽  
Key Aspects ◽  
Delay Tolerant

Many applications of Internet of Things (IoT) have been implemented based on unreliable wireless or mobile networks like the delay tolerant network (DTN). Therefore, it is an important issue for IoT applications to achieve efficient data transmission in DTN. In order to improve delivery rate and optimize delivery delay with low overhead in DTN for IoT applications, we propose a new routing protocol, called Scheduling-Probabilistic Routing Protocol using History of Encounters and Transitivity (PROPHET). In this protocol, we calculate the delivery predictability according to the encountering frequency among nodes. Two scheduling mechanisms are proposed to extend the traditional PROPHET protocol and improve performance in both storage and transmission in DTN. In order to evaluate the proposed routing protocol, we perform simulations and compare it with other routing protocols in an Opportunistic Network Environment (ONE) simulator. The results demonstrate that the proposed Scheduling-PROPHET can achieve better performances in several key aspects compared with the existing protocols.

scholarly journals CHBR: Contact History Based Routing in Time Varying Approach

2014 ◽  
Vol 13 (2) ◽  
pp. 4237-4247 ◽  
Author(s):  
Pravesh S Patel ◽  
Hemal Shah ◽  
Yogeshwar Kosta
Keyword(s):  
Routing Protocol ◽  
Delay Tolerant Network ◽  
Delivery Ratio ◽  
Time Varying ◽  
Intermittent Connectivity ◽  
Real Trace ◽  
Synthetic Datasets ◽  
Delay Tolerant ◽  
Communication Path ◽  
Selection Of

In Delay tolerant network having intermittent connectivity so there is no guarantee of finding a complete communication path that connecting the source and destination. There no any end to end connectivity for delay-tolerant network selection of routing protocol is important to deliver the message in an efficient way and increases chance to deliver a message to the destination. Some existing routing protocols improve the delivery ratio but it also increases the overhead. Our paper proposed Contact History Based Routing (CHBR) that use Neighborhood Index and Time varying properties such as temporal distance, Temporal Diameter and centrality for benchmarking the existing routing protocol. First, temporal metrics are evaluated for synthetic and real trace data. Then CHBR protocol is compared with the Epidemic and PROPHET for delivery ratio, overhead and the number of messages dropped. This has been carried using Opportunistic Network Environment simulator under real and synthetic datasets.

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