Improving the performability of data transfer in mobile ad hoc networks

2005 ◽  
Author(s):  
M. Conti ◽  
E. Gregori ◽  
G. Maselli
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Transfer ◽  
Mobile Ad Hoc ◽  
Hoc Networks

scholarly journals Study the effect of sound encodings on AD-HOC networks using TORA routing protocol and VOIP application: دراسة تأثير ترميزات الصوت على شبكات AD-HOCباستخدام بروتوكول التوجيه TORA وتطبيق VOIP

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Suleiman Zidan Aldarf, Jamal Al-yassin
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Data Transfer ◽  
Node Mobility ◽  
Small Areas ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile Ad-Hoc Networks are used for data transfer. The nodes of such networks do not require presetting. They are characterized by dynamic data transfer during their movement of the nodes.  Routing protocols of mobile ad-hoc networks differ from the existing internet protocols which are designed for the fixed structure based wireless networks. MANET protocols have to face high challenges due to dynamically changing of topologies, low transmission power and asymmetric links. Due to link instability, node mobility and frequently changing topologies routing becomes one of the core issues in MANETs. Currently existent routing protocols provide routing solutions up to a certain level and most of them are designed and implemented in small areas. Many researchers are still working on the developments of MANET routing protocols. This research study effect of some voice codecs on ad-hoc networks using the (TORA routing protocol) and by running the VOIP application on a network randomized scenario. This effect will be compared through several performance parameters for the network used. The Network Simulation Program (OPNET), which is the first program in the area of telecommunications networks in general, is used to provide accurate results for studies in the field of networks.  

A Study of Modeling Mobile Ad-Hoc Networks Attacks

2012 ◽  
Vol 546-547 ◽  
pp. 1217-1222
Author(s):  
Juan Chen ◽  
Hong Shan ◽  
Tao Ma
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Transfer ◽  
Radio Communication ◽  
The Past ◽  
Attack Trees ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile ad-hoc networks (MANETs) are especially vulnerable to attacks because of lacking infrastructure and data transfer using radio communication. In the past various types of MANET attacks have been detected and analyzed. This paper presents the enhanced attack trees for MANET attacks, which is completed by extending the basic attack trees. The enhanced attack trees add the types between nodes and the attributes of nodes. Finally this paper shows how to represent the Block hole attacks in MANETs by means of the enhanced attack trees.

scholarly journals A Method Based on RTO and Selective Acknowledgement for Improving SCTP Protocol Performance in Mobile Ad Hoc Networks

2016 ◽  
Vol 10 (6) ◽  
pp. 238
Author(s):  
Mostafa Tabaiyan ◽  
Mehdi Agha Sarram
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Data Transfer ◽  
Packet Delay ◽  
Validity And Reliability ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Retransmission Timeout

With the increasing development of Mobile Ad Hoc Network usage, there will be more need to have a transport protocol with an appropriate throughput in end to end transport. Because of the design nature of TCP protocol for wired Networks, its application in Mobile Ad-hoc Networks causes a reduction in efficiency, performance and throughput.Protocols such as SCTP with sufficient validity and reliability in data transfer are proposed as solution for increasing throughput. However, in order to provide the above quality, sacrifice factors such as Network balance. In the present paper, two optimized transporting algorithm are introduced. These algorithm act based on retransmission timeout control and selective acknowledgement number for transmissions in SCTP protocol. The offered algorithms using implemented NS-2 simulator and throughput improvement and reduction of packet delay time are compared with former protocols.

scholarly journals The ACO based Routing Protocols for Mobile Ad Hoc Networks

2019 ◽  
Vol 9 (1S5) ◽  
pp. 175-177
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Data Transfer ◽  
Multicast Routing ◽  
Packet Transmission ◽  
Military Applications ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile ad hoc networks are gaining high importance in present days due to many civilian applications apart from regular military applications. Networks usually are designed using fixed infrastructure. Wherever fixed networks are not feasible, ad hoc network serve the purpose. Routing plays an important role in packet transmission, Multicast routing protocols designed for data transfer should consider both bandwidth and energy of the node. Many Ant colony Optimization (ACO) based routing approaches are proposed by researchers. In this paper three popular ACO based routing protocols ANTCHAIN, ANTALG and EMRP-AIPUR are compared using NS2 simulator. The results obtained show that EMRP-AIPUR shows better performance when compared to the other two protocols

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