scholarly journals Improving the Efficiency of Opportunistic Routing in Dynamic Ad Hoc Networks by Eliminating Duplicate Message Forwarding

2019 ◽  
Author(s):  
Varun Menon
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Opportunistic Routing ◽  
Data Delivery ◽  
Data Forwarding ◽  
Wireless Medium ◽  
Efficient Data ◽  
Novel Method ◽  
Hoc Networks

Opportunistic routing has emerged as one of the prominent solutions for efficient data delivery in ad hoc networks especially in highly dynamic scenarios. Opportunistic routing uses the broadcasting nature of the wireless medium to increase the number of potential forwarding nodes in the network, thereby improving the delivery rate. But most of the proposed opportunistic routing protocols suffer from increased duplicate data forwarding at the intermediate nodes in the network which leads to increase in traffic and reduced efficiency. We propose a novel method which uses acknowledgements for controlling the data forwarding by intermediate nodes and thereby eliminating most of the duplicate forwarding in the network. Simulation results show that our proposed method is much more efficient that all the major existing opportunistic protocols.

scholarly journals A Comprehensive Survey on Opportunistic Routing Protocols for MANETs: Issues, Challenges and Future Directions

2019 ◽  
Author(s):  
Varun G Menon
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocols ◽  
Resource Sharing ◽  
Ad Hoc ◽  
Research Work ◽  
Opportunistic Routing ◽  
Future Research ◽  
Wireless Medium ◽  
Comprehensive Survey ◽  
Hoc Networks

Opportunistic routing is the latest technique that uses the broadcasting nature of the wireless medium to increase the number of potential forwarding nodes in the network. This, in turn improves the delivery rate and reliability of data transmission in the network. Compared to all previous classes of routing protocols, opportunistic routing offers numerous advantages which is exploited by the latest applications for efficient communication and resource sharing in dynamic ad hoc networks. These applications provide dynamic communication in disaster recovery environments. The objective of this research work is to review and classify all the major opportunistic routing protocols proposed for dynamic ad hoc networks. Further the issues and challenges with each of these existing protocol is discussed and future research directions are put forward

scholarly journals Optimized Opportunistic Routing in Highly Dynamic Ad hoc Networks

2019 ◽  
Author(s):  
Varun Menon
Keyword(s):  
Quality Of Service ◽  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Transmission Efficiency ◽  
Opportunistic Routing ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Opportunistic Routing is a promising paradigm that has been proposed for efficient and reliable transfer of data packets in mobile ad hoc networks. This routing strategy takes advantage of the broadcasting nature of the wireless medium to increase the number of probable forwarding devices and improves the reliability of data transfer in the network. Opportunistic Routing utilizes the reception of the same broadcasted packet at multiple devices in the network and selects one best forwarder dynamically from the set of multiple receivers. A number of opportunistic routing protocols have been proposed over these years for effective data delivery in ad hoc networks. But as the speed and mobility of devices increases in the network, performances of the existing opportunistic routing protocols degrade considerably, leading to reduced Quality of Service and poor transmission efficiency. The exceptional potential of opportunistic routing is thus underutilized. In this research we introduce Optimized Opportunistic Routing (OOR) strategy that guarantee excellent Quality of Service and high transmission efficiency to the latest applications using opportunistic routing for communication in highly dynamic ad hoc networks. Simulation results show that our method achieve significant performance improvements compared to all other existing opportunistic routing protocols in highly dynamic mobile ad hoc networks.

Review on Opportunistic Routing Protocols for Dynamic Ad hoc Networks: Taxonomy, Applications and Future Research Directions

2019 ◽  
Author(s):  
Varun G. Menon
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocols ◽  
Resource Sharing ◽  
Ad Hoc ◽  
Research Work ◽  
Opportunistic Routing ◽  
Future Research ◽  
Research Directions ◽  
Future Research Directions ◽  
Hoc Networks

Opportunistic routing uses the broadcasting nature of the wireless medium to increase the number of potential forwarding nodes in the network. This, in turn improves the delivery rate and reliability of data transmission in the network. Compared to all previous classes of protocols, opportunistic routing offers numerous advantages which is exploited by the latest applications for efficient communication and resource sharing in dynamic ad hoc networks. The objective of this research work is to review and classify all the major opportunistic routing protocols proposed for dynamic ad hoc networks. Further the issues and challenges with each of these existing protocol is discussed and future research directions are put forward.

Mobility Prediction and Mobile-aware Routing Protocols in MANETs

2012 ◽  
pp. 1-18
Author(s):  
Lamiaa Khalid ◽  
Muhammad Jaseemmuddin ◽  
Alagan Anpalagan
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocols ◽  
Network Performance ◽  
Ad Hoc ◽  
Prediction Models ◽  
Mobility Prediction ◽  
Node Mobility ◽  
Wireless Devices ◽  
Wireless Medium ◽  
Hoc Networks

Ad hoc wireless networks comprise of mobile devices that use wireless transmission for communication without the need for a pre-existing infrastructure. One of the main characteristics of ad hoc networks is that they are self-organizing, which necessitates that all networking functions be performed by the nodes themselves. When designing mobile ad hoc networks, several challenges arise due to the shared nature of the wireless medium, limited transmission range of wireless devices, and node mobility. Node mobility poses a greater challenge as it makes routes more prone to frequent ruptures, which in turn degrades the overall network performance. If the future movement of the node can be predicted in a precise way, the impact of mobility can be decreased, and the overall performance of the network can be improved. This chapter provides an introduction and a critical review on some of the existing mobility prediction models and their effect on the performance of existing routing protocols.

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