A Novel Fuzzy Scheduler for Mobile Ad Hoc Networks

2009 ◽  
pp. 2996-3011
Author(s):  
S. Shanmugavel ◽  
C. Gomathy
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Delivery Ratio ◽  
Ad Hoc Routing ◽  
Packet Losses ◽  
Packet Delays ◽  
Wireless Medium ◽  
Mobile Ad Hoc ◽  
Hoc Networks

As mobile computing gains popularity, the need for ad hoc routing also continues to grow. In mobile ad hoc networks, the mobility of nodes and error prone nature of the wireless medium pose many challenges, including frequent route changes and packet losses. Such problems increase the packet delays and decrease the throughput. To meet with the dynamic queuing behaviour of Ad hoc networks, to provide QoS and hence to improve the performance, a scheduler can be used. This chapter presents a novel fuzzy based priority scheduler for mobile ad-hoc networks, to determine the priority of the packets. The performance of this scheduler is studied using GloMoSim and evaluated in terms of quantitative metrics such as packet delivery ratio, average end-to-end delay and throughput.

A Novel Fuzzy Scheduler for Mobile Ad Hoc Networks

2011 ◽  
pp. 308-321
Author(s):  
S. Shanmugavel ◽  
C. Gomathy
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Delivery Ratio ◽  
Ad Hoc Routing ◽  
Packet Losses ◽  
Packet Delays ◽  
Wireless Medium ◽  
Mobile Ad Hoc ◽  
Hoc Networks

As mobile computing gains popularity, the need for ad hoc routing also continues to grow. In mobile ad hoc networks, the mobility of nodes and error prone nature of the wireless medium pose many challenges, including frequent route changes and packet losses. Such problems increase the packet delays and decrease the throughput. To meet with the dynamic queuing behaviour of Ad hoc networks, to provide QoS and hence to improve the performance, a scheduler can be used. This chapter presents a novel fuzzy based priority scheduler for mobile ad-hoc networks, to determine the priority of the packets. The performance of this scheduler is studied using GloMoSim and evaluated in terms of quantitative metrics such as packet delivery ratio, average end-to-end delay and throughput.

scholarly journals Multimedia Transmission through Mobile Ad hoc Networks using Multicasting

2020 ◽  
Vol 9 (3) ◽  
pp. 1928-1933
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Multicast Routing ◽  
Multimedia Transmission ◽  
Multicast Routing Protocol ◽  
Wireless Medium ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Application Fields

Mobile ad hoc networks, abbreviated to MANETs are covering various application fields with the significant advancements in wireless networks. In the recent past, the multimedia transmission over such networks has drawn the attention from researchers and scientists. In wireless medium, it is always advantageous to go for multicast routing than unicast routing. This paper focuses on the performance analysis of a multicast routing protocol, multicast ad hoc on-demand distance vector (MAODV), and its modified version QoS-MAODV, to support multimedia transmission over ad hoc environments.

Inter-Domain Routing in Mobile Ad Hoc Networks

2010 ◽  
pp. 1-14 ◽  
Author(s):  
Chi-Kin Chau ◽  
Jon Crowcroft ◽  
Kang-Won Lee ◽  
Starsky H.Y. Wong
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Network Topology ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Ad Hoc Routing ◽  
New Directions ◽  
Mobile Ad Hoc ◽  
Hoc Networks ◽  
Inter Domain Routing

Because of the increasing number of diverse routing protocols proposed to deal with the network dynamics in mobile ad hoc networks (MANETs), the heterogeneity of MANETs has increased dramatically. While many of these extant proposals only concern enhancing routing in a single domain, little attention has been given to the interoperations among heterogeneous MANETs. Moreover, the existing inter-domain routing protocols (i.e., BGP) that have been designed for the Internet cannot cope with the new challenges derived from the MANETs, such as (1) the rapid dynamic changes of network topology due to mobility, and (2) the larger diversity in intra-domain ad hoc routing protocols. In this chapter, the authors address some of the major challenges and identify new directions to the development of seamless inter-domain routing for enabling end-to-end communications over heterogeneous MANET domains.

scholarly journals LINK QUALITY, DELAY AND ENERGY AWARE ROUTING PROTOCOL (LQDEARP) FOR MOBILE AD HOC NETWORKS

2015 ◽  
pp. 212-217
Author(s):  
ARAFAT S.M. QAED ◽  
T. DEVI
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Residual Energy ◽  
Link Quality ◽  
Delivery Ratio ◽  
Energy Aware ◽  
Routing Optimization ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Routing Optimization in mobile ad hoc networks is an ever-demanding task. Mobile ad hoc networks are highly dynamic topology natured and hence several routing protocols meet the challenge of link quality, delay and energy conscious routing. This paper proposes a link quality, delay and energy conscious routing approach based on ant colony optimization. Based on the estimated link quality, delay and residual energy of the nearby nodes, Adaptive node stability (ANS) mechanism is mathematically modeled to make the routing strategy. LQDEARP selects the efficient node based on the ANS mechanism and sends the data packets through that node. Simulation results proved that LQDEARP reduces delay and energy consumption and increases packet delivery ratio than that of the AODV and DECRP protocol.

scholarly journals IMPLEMENTATION AND PERFORMANCE ANALYSIS EVALUATION OF A NEW MANET ROUTING PROTOCOL IN NS-2

2013 ◽  
pp. 241-244
Author(s):  
MONALI SAHOO ◽  
ASHISH CHAURASIA
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Discrete Event ◽  
Delivery Ratio ◽  
Manet Routing ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile ad hoc networks (MANETs) can be defined as a collection of large number of mobile nodes that form temporary network without aid of any existing network infrastructure or central access point. The Efficient routing protocols can provide significant benefits to mobile ad hoc networks, in terms of both performance and reliability. Many routing protocols for such networks have been proposed so far. The main method for evaluating the performance of MANETs is simulation. The Network Simulator is a discrete event driven simulator. The goal of ns-2 is to support networking ,research, and education. In this paper we create a new Routing Protocol called My Router step by step in Ns-2.Then we evaluate its performance based on several parameters such as Packet Delivery Ratio , End to End Delay etc and compare it with MANET routing protocol OLSR .

scholarly journals New algorithm for packet routing in mobile ad-hoc networks

2010 ◽  
Vol 20 (1) ◽  
pp. 9-16 ◽  
Author(s):  
Nenad Kojic ◽  
Marija Zajeganovic-Ivancic ◽  
Irini Reljin ◽  
Branimir Reljin
Keyword(s):  
Wireless Networks ◽  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Mesh Network ◽  
Ad Hoc Routing ◽  
Hop Count ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile ad-hoc networks (MANET) are one of wireless networks implementation. MANET is very popular technology initially based on military purposes. Specific modifications of MANET created a possibility to implement several new wireless networks. One of them is a wireless mesh network (WMN). Over the last ten years, WMNs have gained more and more attention and are now considered as a convincing solution for providing better Internet access services for end users. WMN is an emerging technology that offers a cost-effective and scalable method to connect wireless devices. The main problem in WMNs is a routing protocol, especially because it has to enable the access to network for both mesh and conventional clients. Most of the existing ad hoc routing protocols use minimum hop-count as a metric for identifying the best packet routes. This paper presents neural network based approach to routing protocol for WMN. Neural networks are capable to analyze very complex network environments and solve routing problems on optimal (or almost optimal) way.

scholarly journals Low Overhead Localized Routing in Mobile Ad Hoc Networks

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Sumet Prabhavat ◽  
Worrawat Narongkhachavana ◽  
Thananop Thongthavorn ◽  
Chanakan Phankaew
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Opportunistic Networks ◽  
Practical Implementation ◽  
Delivery Ratio ◽  
Node Mobility ◽  
Network Bandwidth ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Mobile Opportunistic Networks (OppNets) are infrastructure-less networks consisting of wireless mobile nodes and have been a focus of research for years. OppNets can be scaled up to support rapid growth of wireless devices and technologies, especially smartphones and tablets. Mobile Ad Hoc Networks (MANETs), one of OppNets technologies, have a high potential to be used for facilitating an extension for the Internet and a backup communication platform in disaster situation. However, a connection disruption due to node mobility and unreliable wireless links is possible to trigger a flooding operation of route repair process. This results in transmission delay and packet loss. The flooding of routing packets is an expensive operation cost in MANETs which affects network reliability and wastes limited resources such as network bandwidth and node energy. These are obstacles to practical implementation of MANETs in real-world environment. In this paper, we propose Low Overhead Localized Flooding (LOLF), an efficient overhead reduction routing extension based on Query Localization (QL) routing protocol. The purpose of this work is to control the propagation of routing packets in the route discovery and route repair mechanisms while incurring only a small increase in the size of control information in the packet. Simulation results from extensive experiments show that our proposed method can reduce overall routing overhead, energy consumption, and end-to-end delay without sacrificing the packet delivery ratio compared to existing protocols.

Analyzing Performance of Ad hoc Routing Protocols under Various Constraints

2012 ◽  
pp. 152-166
Author(s):  
Lalitsen Sharma ◽  
Supriya Gupta
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Centralized Control ◽  
Ad Hoc Routing ◽  
Dynamic Source ◽  
Network Topologies ◽  
Mobile Ad Hoc ◽  
Hoc Networks

The mobility of nodes in mobile ad hoc networks and absence of any centralized control cause unpredictable changes in the network topologies. This makes routing a challenging task. Several routing protocols for mobile ad-hoc networks have come into existence. The protocols are classified in mainly in three categories: proactive, reactive, and hybrid. In this chapter, a study of one of each of the proactive and reactive protocols (respectively, Destination Sequence Distance Vector routing [DSDV], and Dynamic Source Routing [DSR]) is presented. The performance of above said protocols has been measured under varying mobility environment using NS-2 simulator based upon three quality metrics: average end-to-end delay, throughput, and jitter.

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