An Enhanced Packet Delivery Ratio for Mobile Ad Hoc Networks Using DCCHSM Algorithm

2021 ◽  
pp. 883-891
Author(s):  
J. Vijayalakshmi ◽  
K. Prabu
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Packet Delivery Ratio ◽  
Delivery Ratio ◽  
Packet Delivery ◽  
Mobile Ad Hoc ◽  
Hoc Networks

scholarly journals Novel Protocols for Improving the Performance of ODMRP and EODMRP over Mobile Ad Hoc Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-18 ◽  
Author(s):  
Khalid A. Darabkh ◽  
Ola A. Alsukour
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Multicast Routing ◽  
Packet Delivery Ratio ◽  
Delivery Ratio ◽  
Packet Delivery ◽  
Control Overhead ◽  
Mobile Ad Hoc ◽  
Hoc Networks

Due to its simplicity, efficiency, and robustness to mobility, the On-Demand Multicast Routing Protocol (ODMRP) becomes a standout amongst the most broadly utilized multicast routing protocols in mobile ad hoc networks (MANETs). However, the robustness of ODMRP comes at the expense of incurring a high control overhead to the network. The Enhanced ODMRP (EODMRP) proposed a dynamic refresh interval for the multicast mesh based on the network feedback on real disconnections experienced by the multicast network members. Veritably, EODMRP decreased the network control overhead at the cost of obtaining a low packet delivery ratio especially in high mobility conditions of the network. In this paper, two protocols, as improvements to both ODMRP and EODMRP, are proposed where the refresh interval is basically adapted based on the source moving speed and the number of disconnections reported by multicast members. Furthermore, we proposed an impressive local recovery to be employed in both protocols, which includes new setup and failure mechanisms that contribute effectively to boosting the performance of our proposed protocols. Since the majority of nodes in MANET rely on batteries, the main contribution of this research is to limit the amount of control information that is passed between nodes (i.e., reducing the control overhead over that in ODMRP) while maintaining a better packet delivery ratio than EODMRP.

FSR Evaluation Using the Suboptimal Operational Values

2009 ◽  
pp. 203-211
Author(s):  
Osama H.S. Khader
Keyword(s):  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Packet Delivery Ratio ◽  
Delivery Ratio ◽  
Packet Delivery ◽  
Large Populations ◽  
Mobile Ad Hoc ◽  
Hoc Networks

In mobile ad hoc networks, routing protocols are becoming more complicated and problematic. Routing in mobile ad hoc networks is multi-hop because of the limited communication range of wireless radios. Since nodes in the network can move freely and randomly, an efficient routing protocol is needed in order for such networks to be able to perform well in such an environment. In this environment the routing strategy is applied such that it is flexible enough to handle large populations and mobility and be able to minimize the use of the battery. Also it should be designed to achieve maximum packet delivery ratio. Further more, the routing protocol must perform well in terms of fast convergence, low routing delay, and low control overhead traffic. In this paper an improved implementation of the Fisheye State Routing (FSR) protocols is presented, where a new selection routing criteria that utilizes a minimum number of hops is a selection metric. The results obtained from simulation indicate that the fewer number of hops used the better and more efficient the output for packet delivery ratio was generated.

scholarly journals Modeling and optimization of Quality of Service routing in Mobile Ad hoc Networks

Open Physics ◽  
2016 ◽  
Vol 14 (1) ◽  
pp. 498-507 ◽  
Author(s):  
Marjan Kuchaki Rafsanjani ◽  
Hamideh Fatemidokht ◽  
Valentina Emilia Balas
Keyword(s):  
Mathematical Model ◽  
Energy Consumption ◽  
Ad Hoc Networks ◽  
Mobile Ad Hoc Networks ◽  
Random Graphs ◽  
Ad Hoc ◽  
Delivery Ratio ◽  
Packet Delivery ◽  
Mobile Ad Hoc ◽  
Hoc Networks

AbstractMobile ad hoc networks (MANETs) are a group of mobile nodes that are connected without using a fixed infrastructure. In these networks, nodes communicate with each other by forming a single-hop or multi-hop network. To design effective mobile ad hoc networks, it is important to evaluate the performance of multi-hop paths. In this paper, we present a mathematical model for a routing protocol under energy consumption and packet delivery ratio of multi-hop paths. In this model, we use geometric random graphs rather than random graphs. Our proposed model finds effective paths that minimize the energy consumption and maximizes the packet delivery ratio of the network. Validation of the mathematical model is performed through simulation.

Performance Analysis of TCP Variants using AODV and DSDV Routing Protocols in MANETs

2019 ◽  
Vol 13 ◽  
Author(s):  
Rajnesh Singh ◽  
Neeta Singh ◽  
Aarti Gautam Dinker
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Packet Delivery Ratio ◽  
Transport Layer ◽  
Destination Node ◽  
Delivery Ratio ◽  
Packet Delivery ◽  
Two Measures ◽  
Hoc Networks

TCP is the most reliable transport layer protocol that provides reliable data delivery from source to destination node. TCP works well in wired networks but it is assumed that TCP is less preferred for ad-hoc networks. However, for application in ad-hoc networks, TCP can be modified to improve its performance. Various researchers have proposed improvised variants of TCP by only one or two measures. These one or two measures do not seem to be sufficient for proper analysis of improvised version of TCP. So, in this paper, the performance of different TCP versions is investigated with DSDV and AODV routing Protocols. We analyzed various performance measures such as throughput, delay, packet drop, packet delivery ratio and number of acknowledgements. The simulation results are carried out by varying number of nodes in network simulator tool NS2. It is observed that TCP Newreno achieved higher throughput and packet delivery ratio with both AODV and DSDV routing protocols.Whereas TCP Vegas achieved minimum delay and packet loss with both DSDV and AODV protocol. However TCP sack achieved minimum acknowledgment with both AODV and DSDV routing protocols. In this paper the comparison of all these TCP variants shows that TCP Newreno provides better performance with both AODV and DSDV protocols.

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.

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 .

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