scholarly journals A Comparative Performance Evaluation of Routing Protocols for Flying Ad-Hoc Networks in Real Conditions

2021 ◽  
Vol 11 (10) ◽  
pp. 4363
Author(s):  
Antonio Guillen-Perez ◽  
Ana-Maria Montoya ◽  
Juan-Carlos Sanchez-Aarnoutse ◽  
Maria-Dolores Cano
Keyword(s):  
Performance Evaluation ◽  
Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Value Added ◽  
Node Mobility ◽  
Comparative Performance ◽  
Wide Range ◽  
Hoc Networks ◽  
5 Ghz

Unmanned aerial vehicles (UAVs) are widely used in our modern society and their development is rapidly accelerating. Flying Ad Hoc Networks (FANETs) have opened a new window of opportunity to create new value-added services. However, the characteristics that make FANETs unique, such as node mobility, node distance, energy constraints, etc., imply that several guidelines need to be considered for their successful deployment. Although numerous routing protocols have been proposed for FANETs, due to the wide range of applications in which FANETs can be applied, not all routing protocols can be used. Due to this challenge, after breaking down and classifying the different types of existing routing protocols for FANET, this paper analyzes and compares the performance of several routing protocols (Babel, BATMAN-ADV, and OLSR) in terms of throughput and packet loss in a real deployment composed of several UAV nodes using 2.4 and 5 GHz WiFi networks. The results show that Babel achieves better performance in the studied metrics than OLSR and BATMAN-ADV, while BATMAN-ADV delivers significantly lower performance. This experimental study confirms the importance of choosing the proper routing protocol for FANETs and their performance evaluation, something that will be extremely important in a few years when this type of network will be common in our day-to-day life.

Routing in Asymmetric Wireless Ad-Hoc Networks

2010 ◽  
pp. 132-145
Author(s):  
Pramita Mitra ◽  
Christian Poellabauer
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Route Discovery ◽  
Node Mobility ◽  
Ad Hoc Routing ◽  
Two Phase ◽  
First Case ◽  
Hoc Networks ◽  
Asymmetric Links

The presence of asymmetric links is a common and non-negligible phenomenon in many ad-hoc networks, including MANETs and sensor networks. Asymmetry is caused by node mobility, heterogeneous radio technologies, and irregularities in radio ranges and packet loss patterns. Most existing ad-hoc routing protocols either assume fully symmetric networks or simply ignore any asymmetric links. In the first case, route discovery can fail when the symmetry assumption does not hold true, e.g., many reactive routing protocols rely on a two-phase communication process, where the same path is used to communicate between a sender and a receiver. If a single link on this path is asymmetric, the route establishment may fail. In the second case, asymmetric links are identified and explicitly ignored in the route establishment phase. This can lead to route discovery failure if there is no symmetric path between a sender and a receiver or it can lead to less than optimal routes. This document provides an overview of routing protocols that explicitly consider asymmetric links in the route discovery phase and introduces robust mechanisms that bypass asymmetric links to ensure successful route establishment.

Sign in / Sign up

Export Citation Format

Share Document