Trust based Dynamic Multicast Group Routing Ensuring Reliability for Ubiquitous Environment in MANETs

2017 ◽  
Vol 8 (1) ◽  
pp. 70-97 ◽  
Author(s):  
Shobha Tyagi ◽  
Subhranil Som ◽  
Qamar Parvez Rana
Keyword(s):  
Ad Hoc ◽  
Group Formation ◽  
Cartesian Product ◽  
Human Beings ◽  
Mobile Environment ◽  
Ubiquitous Environment ◽  
Probabilistic Function ◽  
Dynamic Multicast ◽  
Hoc Networks ◽  
Moving Patterns

The mobile environment in MANETs (Mobile Ad hoc Networks) itself is a major constraint to deal with, and assuring reliability on the top of that strengthens the problem more. This paper which is entirely an extension of the authors' previous work based on trust based group formation using Fuzzy Logic. They herein propose a model which is highly inspired by natural and social behavior of human beings that man is a social animal and is always associated with different types of dynamic groups. Before ensuring the reliable route take into account the trust (T) and the speed (S) of the intermediate nodes which may take part in routing. Trust is actually a matter of feeling with which one feels connected with some person/s in the form of multicast groups. Thus, the proposed Multicast Route Reliability (MRR) is a purely a probabilistic function of Cartesian product of past relationships and present moving patterns.

Handoff Schemes in Mobile Environments

2020 ◽  
Vol 11 (1) ◽  
pp. 55-72
Author(s):  
Libin Thomas ◽  
J Sandeep ◽  
Bhargavi Goswami ◽  
Joy Paulose
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Mobile Environments ◽  
Mobile Nodes ◽  
Mobile Environment ◽  
Coverage Area ◽  
Communication Links ◽  
Hoc Networks ◽  
Handoff Schemes

Vehicular ad-hoc networks are one of the most popular applications of Ad-hoc networks, where networks are formed without any sort of physical connecting medium and can be formed whenever required. It is an area in networks that has enjoyed a considerable amount of attention for quite some time. Due to the highly mobile environment where these networks find their usability, it can be understood that there are a lot of problems with respect to maintaining the communication links between the moving vehicular nodes and the static infrastructures which act as the access points (AP) for these moving vehicular mobile nodes (MN). The coverage area of each AP is limited and as such, the connections need to be re-established time and again between the MNs and the closest accessible AP. Handoff is the process involved here, which deals with selecting the optimal APs as well as the best network available for data transmission. In this article, the authors compare various handoff methods and categorize them based on the different approaches they follow.

scholarly journals Distribution of Safety Messages Using Mobility-Aware Multi-Hop Clustering in Vehicular Ad Hoc Network

2021 ◽  
Vol 13 (7) ◽  
pp. 169
Author(s):  
Rajeshwari Chiluveru ◽  
Nishu Gupta ◽  
Ariel Soares Teles
Keyword(s):  
Traffic Safety ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Transfer ◽  
High Reliability ◽  
Communication Overhead ◽  
Network Simulator ◽  
Mobile Environment ◽  
Medium Access ◽  
Hoc Networks

Reliability and security when distributing safety messages among vehicles in an extremely mobile environment are prominent issues in Vehicular Ad-Hoc Networks (VANETs). In VANET, data transfer becomes challenging because of inherent features such as excessive speed, geographically constrained topologies, unsteady communication links, diversity in the capacity of the channel, etc. A major challenge in the multi-hop framework is maintaining and building a path under such a rigid environment. With VANET, potency in the traffic safety applications has performed well because of the proper design of medium access control (MAC) protocols. In this article, a protocol is proposed pertaining to the distribution of safety messages named mobility-aware multi-hop clustering-based MAC (MAMC-MAC) to accomplish minimum communication overhead, high reliability, and delivery of safety messages in real-time environments. MAMC-MAC has the ability to establish clustering-based multi-hop sequence using the time-division multiple access (TDMA) technique. The protocol was specially developed for highway outlines to achieve network enhancement and efficient channel usage and guarantees integrity among the vehicles. The performance of the proposed protocol is evaluated using Network Simulator (NS-2), and it demonstrates its superiority over various standard protocols in terms of a number of quality-of-service (QoS)-based parameters. The criteria to select and assess these parameters are their sensitivity and importance to the safety-based applications they provide.

scholarly journals Performance Analysis of AODV Based Maximum Energy Level Routing in Ad-Hoc Networks

2013 ◽  
Vol 6 (1) ◽  
pp. 658-664
Author(s):  
Punam Karadge Gurlhosur ◽  
Dr. S.V. Sankpal
Keyword(s):  
Energy Efficiency ◽  
Ad Hoc ◽  
High Energy ◽  
Maximum Energy ◽  
Human Beings ◽  
Aodv Protocol ◽  
Potential Applications ◽  
Adhoc Networks ◽  
Wireless Adhoc Networks ◽  
Hoc Networks

Advances in wireless communications have enabled the development of networks of a large number of small inexpensive, low-power multifunctional devices. These wireless Adhoc networks present a very interesting and challenging area and have tremendous potential applications. Communication protocols are the heart and soul of any communication network and the same is true for the Adhoc networks. Because of their great potential for providing safer and healthier environments for human beings they have attracted extensive interest from industry and academia. These Adhoc networks are usually operated in energy constraint environments. Therefore, from a networking perspective, energy efficiency is a critical objective in the design of communication protocols.This paper describes improvement of an energy efficiency routing for ad hoc network utilizing the high energy paths. We present a comparative analysis of existing AODV protocol and energy efficient AODV protocol which is modified to improve network lifetime in MANET. Simulation results indicate that the routing schemes are more efficient than existing well-known routing protocol.

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