scholarly journals Modified Spray Phase to Improve Performance of Binary Spray and Wait Routing Protocol in Delay Tolerant Network

2014 ◽  
Vol 97 (4) ◽  
pp. 13-16
Author(s):  
Pavan Yadav ◽  
Shweta Jain
Keyword(s):  
Routing Protocol ◽  
Delay Tolerant Network ◽  
Improve Performance ◽  
Delay Tolerant ◽  
Spray And Wait

scholarly journals Adaptive Spray and Wait Protocol for Vehicular DTN

2018 ◽  
Vol 7 (2.16) ◽  
pp. 107
Author(s):  
Vyomal Pandya ◽  
Shruti Bhargava Choubey
Keyword(s):  
Routing Protocol ◽  
High Speed ◽  
Single Copy ◽  
Improve Performance ◽  
Successful Transmission ◽  
Delivery Probability ◽  
Rapid Changes ◽  
Multiple Copies ◽  
Delay Tolerant ◽  
Spray And Wait

Because of high speed of vehicles, short contact durations and rapid changes in topology occurs in Vehicular Delay Tolerant Networks(VDTNs). This will generates few transmission opportunities and high and unpredictable delay. This problem can be solved by different routing protocol of VDTN . The VDTN protocol can be divided as single copy and multicopy. In single copy protocol the node is allowed to generate the unique copy of message and forward it on a unique path.The multi copy protocols generate and transmit the multiple copies of each message and forward it along various paths. If more number of copy spread in network there are more chances for successful transmission. The objective of paper is to improve performance of VDTN by modifying existing Spray and Wait protocol. In this paper we provide proposed algorithm for modify spray and wait protocol for improving delivery probability with different number of message copy. The modifications based on stored number of message copies at source/rely nodes and encountered nodes ratio.  

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.

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