Aware Ad-hoc On-demand Distance Vector Research Articles

EPLAODV: Energy Priority and Link Aware Ad-hoc On-demand Distance Vector Routing Protocol for Post-disaster Communication Networks

EPLAODV: Energy Priority and Link Aware Ad-hoc On-demand Distance Vector Routing Protocol for Post-disaster Communication Networks

EPLAODV: Energy Priority and Link Aware Ad-hoc On-demand Distance Vector Routing Protocol for Post-disaster Communication Networks

In Mobile Ad-hoc Networks (MANETs) the major issue between nodes for data transfer is link quality. The majority of the MANET routing protocols try to maintain the link quality between nodes but still need improvement. This paper focuses on link quality between nodes in an ad hoc network in emergency scenarios through the design of the Energy Priority and Link Aware Ad-hoc On Demand Distance Vector (EPLAODV) routing protocol. EPLAODV improves the link quality between nodes through SNR. For performance analysis, the NS2.35 network simulator was used. Simulation time and traffic load were the major simulation parameters. From the simulation results, it is observed that EPLAODV performs better than AODV.

Enhancing Reliability of Tactical MANETs by Improving Routing Decisions

Mobile ad-hoc networks (MANETs) have been primarily designed to enhance tactical communications in a battlefield. They provide dynamic connectivity without requiring any pre-existing infrastructure. Their multi-hop capabilities can improve radio coverage significantly. The nature of tactical MANET operations requires more specialized routing protocols compared to the ones which are used in commercial MANET. Routing decisions in MANETs are usually conditioned on signal-to-interference-plus-noise ratio (SINR) measurements. In order to improve routing decisions for use in highly dynamic tactical MANETs, this paper proposes to combine two different metrics to achieve reliable multicast in multi-hop ad hoc networks. The resulting protocol combining received signal strength (RSS) with SINR to make routing decisions is referred to as Link Quality Aware Ad-hoc On-Demand Distance Vector (LQA-AODV) routing. The proposed routing protocol can quickly adapt to dynamic changes in network topology and link quality variations often encountered in tactical field operations. Using computer simulations, the performance of proposed protocol is shown to outperform other widely used reactive routing protocols assuming several performance metrics.

Improving Quality of Service for Mobility Aware of Multi-path Routing Protocol for Load Balancing in Mobile Ad-Hoc Network

In Mobile Ad hoc Network (MANET), the single path QoS routing is disadvantageous as it may cause interference, fading, collision and link failures. For QoS routing, the load balancing is necessary, because it allows a router to take advantage of best of multiple shortest paths to a given destination. It also avoids congestion within the network using multipath. While using the MQRLB, the Load balancing may cause some of the major issues such as Link failure, Out of range, Limited Bandwidth, due to this the load balancing in multipath function is not efficient.To overcome these issues, in this paper, MMQRLBMultipath Mobility Aware QoS Routing Load Balancingwith AODV(Ad-hoc on demand distance vector)protocol is proposed to improve the QoS in Load balancing.

Mobility aware and dual phase AODV protocol with adaptive hello messages over vehicular ad hoc networks

Establishing stable routes over high mobility networks is a challenging field and consequently brought the attention of a lot of current researchers. In this article, a new reactive routing protocol has been proposed which is considered as a major extension of both Ad-hoc On-demand Distance Vector (AODV) and Mobility and Direction Aware AODV (MDA-AODV) prior routing protocols. It is named as Mobility Aware and Dual Phase Ad-hoc On-demand Distance Vector with Adaptive Hello Messages (MA-DP-AODV-AHM). It primarily concentrates on building routes considering vehicles’ speeds and direction of motion with respect to source vehicles, thereby establishing more stable routes and reducing the route breakages. Not only to this extent, but rather, we proposed an adaptive control packet announcement mechanism, which is directly connected to the periodic hello messages approach, with vehicles’ speeds, yielding a significant reduction in the amount of control overhead and congestion over the network. Moreover, the new protocol is proposed to alternate working among two phases, for the reason of guaranteeing the generation of efficient routes on a timely basis, which include MA-DP-AODV-AHM and AODV protocols. Our protocol has been evaluated in terms of control overhead, end-to-end delay, and energy consumption using QualNet simulator version 7.1 in which enormous simulations have been conducted under the base of vehicle density, packet rate, and constant bit rate connections. Simulation results summarize that MA-DP-AODV-AHM contributes efficiently in mitigating the network instability through generating effective stable routes and reducing link failures. Furthermore, it has proved its superiority over AODV and MDA-AODV.

Performance Analysis of Energy Aware AODV Routing Protocol for IEEE 802. 15. 4 Enabled WSN

In the present scenario, wireless network is being widely used in the area where infrastructure based telecommunication system are unavailable. The mobile adhoc network is the infrastructure-less mobile network which has no fixed infrastructure and the nodes can be connected dynamically in an arbitrary manner. The sensor networks are incarnated from ad-hoc networks in which nodes have sensing capability. There are several communication protocols available for wireless sensor networks such as Ad hoc On demand Distance Vector (AODV), Dynamic Source Routing (DSR), Dynamic Destination Sequenced Distance Vector (DSDV). AODV is an on demand dynamic routing protocol that uses sequence number to determine the timeliness of each packet and to prevent loops. The main advantage of this protocol is to establish routes on demand and destination sequence numbers are available for finding the latest route to the destination. However, nodes in sensor networks are usually powered by batteries, which provide a limited amount of energy since sensor nodes have limited battery power. Hence it is required to develop energy efficient routing protocols to optimize the performance of the network. In this paper, Energy Aware AODV (EAODV) routing protocol for IEEE 802.15.4 enabled WSN is developed to improve the performance of the network. The energy aware AODV protocol for IEEE 802.15.4 enabled WSN is done by incorporating the residual energy in the RREQ message of the existing AODV protocol. Further, the performance metrics such as delivery ratio and delay are determined and analyzed for various simulation times and coverage area.

Transmission Power Control Aware Routing in Cognitive Radio Ad Hoc Networks

Abstract--Cognitive radio technology has drawn much attention since it is a promising candidate to efficiently utilize the scarce radio resources. However, cognitive radio introduces new challenges in the protocol stacks in wireless networks. This paper proposes a routing protocol for Cognitive Radio Ad Hoc Networks (CRAHNs), called Transmission Power Control aware AODV (TPC-AODV). TPC-AODV is based on Ad hoc On Demand Distance Vector (AODV) routing protocol. The main objectives of TPC-AODV are to avoid interruption of primary users' communication and to support basic Quality of Service for secondary users. TPC-AODV takes inputs from both secondary users' application requirements and the channel condition after spectrum sensing. These inputs enable secondary users' communication with specific transmission power on the selected channel. Our simulation results show that TPC-AODV improves network performance in terms of throughput and delay compared to AODV in CRAHNs.

Power Aware Ad Hoc On-demand Distance Vector (PAAODV) Routing for MANETS

Efficient implementation of Mobile Ad Hoc Networks (MANETs) needs a set of application specific Quality of Service (QoS) parameters such as bandwidth, delay and power etc. be guaranteed on a regular basis for the entire life time of operation of the ad hoc network. To achieve this, required measures should be taken at the level of the corresponding ad hoc routing protocol. Most of the routing protocols, especially on-demand routing protocols like Dynamic Source Routing (DSR), Ad hoc Ondemand Distance Vector (AODV), mostly concentrate on determining a route with minimum number of hops, where the issues like delay and power management remain unresolved. In this paper, we suggest Power Aware AODV (PAAODV) protocol for ad hoc networks, which is an enhancement of existing AODV ad hoc routing protocol. The principal goal behind devising PAAODV is to optimally reduce power consumption to a possible minimum level in an ad hoc network with the connectivity of the network not being disrupted. As a consequence of it, the overall power consumed in transmission of overhead packets is significantly reduced. On the other hand, more power can be utilized for transmission of the data packets. In this research work, existing on-demand routing protocol, namely AODV, is enhanced to PAAODV and its performance is verified through simulations using network simulator NS-2. Simulation results justify that power consumed in transmission of data packets using PAAODV is reduced by 25% as compared to that in AODV, and the performance of the ad hoc network is improved as a whole.

Energy level and link state aware AODV route request forwarding mechanism research

Ad-hoc On-demand Distance Vector (AODV) provides scalable and effective solution for packet routing in mobile wireless ad hoc networks, however, the path generated by this protocol may derivate far...