scholarly journals A Multiconstrained QoS-Compliant Routing Scheme for Highway-Based Vehicular Networks

2019 ◽  
Vol 2019 ◽  
pp. 1-18 ◽  
Author(s):  
Abderrahmane Lakas ◽  
Mohamed El Amine Fekair ◽  
Ahmed Korichi ◽  
Nasreddine Lagraa
Keyword(s):  
Routing Protocol ◽  
Vehicular Networks ◽  
Multimedia Services ◽  
New Techniques ◽  
Available Bandwidth ◽  
Bee Colony ◽  
Expiration Time ◽  
Link Expiration Time ◽  
Qos Metrics

With the deployment of multimedia services over VANETs, there is a need to develop new techniques to insure various levels of quality of services (QoS) for real time applications. However, in such environments, it is not an easy task to determine adequate routes to transmit data with specific application QoS requirements. In this paper, we propose CBQoS-Vanet, a new QoS-based routing protocol tailored towards vehicular networks in a highway scenario. This protocol is based on the use of two techniques: first a clustering technique which organizes and optimizes the exchange of routing information and, second, a bee colony inspired algorithm, which calculates the best routes from a source to a destination based on given QoS criteria. In our approach, clusters are formed around cluster heads that are themselves elected based on QoS considerations. The QoS criteria here are based on the two categories of metrics: QoS metrics and mobility metrics. The QoS metrics consists of the available bandwidth, the end-to-end delay, and the jitter. The mobility metrics consists of link expiration time and average velocity difference. We have studied the performance of CBQoS-Vanet through simulation and compared it to existing approaches. The results that we obtained show that our technique outperforms, in many aspects, the approaches that it was compared against.

A Bandwidth and Energy Aware QoS Routing Protocol for Enhanced Performance in Ad-hoc Networks

2019 ◽  
Vol 9 (2) ◽  
pp. 203-213
Author(s):  
Priyanka Bharadwaj ◽  
Surjeet Balhara
Keyword(s):  
Ad Hoc Networks ◽  
Routing Protocol ◽  
Ad Hoc ◽  
Qos Routing ◽  
Delivery Ratio ◽  
Energy Aware ◽  
Multimedia Services ◽  
Average Delay ◽  
Hoc Networks

Background & Objective: There are some challenging issues such as providing Quality of Service (QoS), restricted usage of channels and shared bandwidth pertaining to ad-hoc networks in a dynamic topology. Hence, there is a requirement to support QoS for the application environment and multimedia services in ad-hoc networks with the fast growing and emerging development of information technology. Eventually, bandwidth is one of the key elements to be considered. Methods: Energy aware QoS routing protocol in an ad-hoc network is presented in this article. Results and Conclusion: The simulation results indicate that the improved protocol outperforms Adhoc On-Demand Distance Vector (AODV) routing protocol in terms of QoS metric such as throughput, packet delivery ratio, loss rate and average delay.

An Efficient QoS Routing Protocol for Real Time Applications in MANET

2015 ◽  
Vol 11 (2) ◽  
pp. 53-75
Author(s):  
Prakash Srivastava ◽  
Rakesh Kumar
Keyword(s):  
Routing Protocol ◽  
Link Failure ◽  
Intensity Level ◽  
End To End Delay ◽  
Expiration Time ◽  
Efficient Route ◽  
Link Expiration Time ◽  
Real Time Applications ◽  
Near Future ◽  
Day By Day

Multimedia applications over Internet are rising day by day hence stringent requirements of bandwidth and delay is an important issue. This paper is focused on QoS aware routing which provides optimal routes as a function of parameters like bandwidth, delay, packet loss etc. Thea authors' approach involves estimation of node bandwidth, delay and link expiration time at every node. The link expiration time metric is also considered for efficient route discovery to determine forecasting of route stability in near future and hence reliable route is identified. Existing link failure strategy involves frequent route discoveries which incurs high routing overhead and increased end-to-end delay. In this paper, efficient link failure strategy is also incorporated by utilizing multiple alternate paths in case of link failure which is determined with the help of signal intensity level to provide prediction before link break up. Performance of proposed approach is analyzed through simulation and validated analytically. Results show that the authors' approach has been found outperforming to existing approaches.

A Multipath Routing Protocol Based on the Quality of Service Aware

2015 ◽  
Vol 713-715 ◽  
pp. 2199-2202
Author(s):  
Yi Quan Wang ◽  
Sha Liu ◽  
Deng Yin Zhang
Keyword(s):  
Quality Of Service ◽  
Routing Protocol ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Available Bandwidth ◽  
Mobile Ad Hoc ◽  
Demand Routing ◽  
Transmission Ability

To meet the practical demands of mobile Ad Hoc network on quality of service, we proposed an improved wireless on-demand routing protocol on the basis of traditional AODV. We integrate multi-path routing into route discovery process and arrange data originated from source to be transmitted over several different paths concurrently, and defined the path level to evaluate the path’s transmission ability based on its available bandwidth. Numerical simulation results demonstrate the proposed routing protocol outperforms AODV in end-to-end delay, packet delivery rate and network lifetime.

Routing Protocol for Cognitive Radio Ad Hoc Networks

2017 ◽  
Vol 9 (3) ◽  
pp. 45-60
Author(s):  
Ahemd M. Alotaibi ◽  
Salman A. AlQahtani
Keyword(s):  
Cognitive Radio ◽  
Ad Hoc Networks ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc ◽  
Primary Users ◽  
Route Stability ◽  
Hoc Networks ◽  
Qos Metrics

Routing is an important issue in cognitive radio ad hoc networks (CRAHNs) owing to the stochastic activity of primary users (PUs). In particular, route stability remains an important issue in the CRAHN protocols. In this paper, the authors propose a stability-weighted cumulative expected transmission time (SWCETT) routing protocol. The SWCETT routing protocol aims towards providing the most optimal route based on both quality of service (QoS) metrics, such as delay and throughput, and stability of the route in the CRAHN. The performance of the SWCETT routing protocol is determined through simulations and compared with other routing protocols. The proposed routing protocol is capable of providing better delay and throughput than other routing protocols. The results prove the importance of the route stability metric in raising the performance of CRAHNs.

A Novel Distributed QoS Control Scheme for Multi-Homed Vehicular Networks

2012 ◽  
pp. 150-168 ◽  
Author(s):  
Hamada Alshaer ◽  
Thierry Ernst ◽  
Arnaud de La Fortelle
Keyword(s):  
Mobile Networks ◽  
Vehicular Networks ◽  
Wireless Channel ◽  
Network Mobility ◽  
Qos Control ◽  
Available Bandwidth ◽  
Data Control ◽  
Control Scheme ◽  
And Performance

Resource availability in vehicular mobile networks fluctuates due to wireless channel fading and network mobility. Multi-homed mobile networks require a Quality-of-Service (QoS) control scheme that can select a routing path to guarantee high quality of communications with Correspondent Nodes (CNs) while using the maximum available bandwidth of wireless and radio communication technologies. In this chapter, the authors develop an intelligent distributed QoS control scheme which inter-operates between mobile routers, managing vehicular networks mobility, and Road Communication Gateways (RCGs). This proposed scheme manages Vehicle-to-Infrastructure (V2I) communications through enabling multi-homed vehicular networks to optimally distribute traffic among egress links of their mobile routers based on vehicular communication policies and available bandwidth and performance metrics of selected routing paths. This scheme considers the data control plane as a collaborative entity and specifies detailed operations to be performed in the mobile routers and RCGs. Simulation experiments show that the proposed scheme can improve the Congestion Window (CWND) of TCP and the e2e packet loss of video traffic, despite network mobility. It also guarantees the service parameter settings of uplink and downlink connections while achieving reasonable utilization efficiency of network resources and fairly sharing them.

scholarly journals Link Expiration Time-Aware Routing Protocol for UWSNs

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Md. Ashraf Uddin ◽  
Mamun-or-Rashid
Keyword(s):  
Routing Protocol ◽  
Bayes Theorem ◽  
Residual Energy ◽  
Data Packet ◽  
Node Mobility ◽  
Control Packet ◽  
Expiration Time ◽  
Forwarding Node ◽  
Link Expiration Time ◽  
Time Aware

We propose a link expiration time-aware routing protocol for UWSNs. In this protocol, a sending node forwards a data packet after being sure that the packet reaches the forwarding node, and acknowledgment is returned to the sending node after receiving the data packet. Node mobility is handled in the protocol through the calculation of the link expiration time and sending the packet based on the link expiration time. Although the protocol employs two types of control packet, it provides less energy consumption and at the same time is providing better reliability of packets reaching to the destination because of using acknowledgement packet. The forwarding decision of node is taken by applying Bayes’ uncertainty theorem. We use depth, residual energy, and distance from the forwarding node to the sending node as evidence in Bayes’ theorem. In this protocol, we use the concept of expert systems ranking potentially true hypothesis. Extensive simulation has been executed to endorse better performance of the proposed protocol.

scholarly journals Comparison of routing protocol performance on multimedia services on software defined network

2020 ◽  
Vol 9 (4) ◽  
pp. 1612-1619 ◽  
Author(s):  
Vivi Monita ◽  
Indrarini Dyah Irawati ◽  
Rohmat Tulloh
Keyword(s):  
Software Defined Network ◽  
Test Results ◽  
Control Plane ◽  
New Paradigm ◽  
Multimedia Services ◽  
Available Bandwidth ◽  
Opinion Score ◽  
Measurement Results ◽  
Data Plane

Software defined network (SDN) is a new paradigm in network engineering, where control plane and data plane are separated. Data plane is carried out on each node, while a control plane is centrally located. In conventional networks, the planes are implemented in the firmware of the router. In this paper, we implemented multimedia services on SDN using exterior and interior routing protocols, such as open shortest path first (OSPF), border gateway protocol (BGP) and routing information protocol (RIP), measured the quality of service (QoS), and analyze the measurement results. The test results showed that the greater the background traffic provided, the smaller the throughput. Traffic on the network will be congested, so the available bandwidth is also increasingly used up so that the number of bits sent every second decrease. Mean opinion score (MOS) test results are 4 showing good categories based on ITU-T standards.

A Novel Distributed QoS Control Scheme for Multi-Homed Vehicular Networks

2015 ◽  
pp. 1667-1685
Author(s):  
Hamada Alshaer ◽  
Thierry Ernst ◽  
Arnaud de La Fortelle
Keyword(s):  
Mobile Networks ◽  
Vehicular Networks ◽  
Wireless Channel ◽  
Network Mobility ◽  
Qos Control ◽  
Available Bandwidth ◽  
Data Control ◽  
Control Scheme ◽  
And Performance

Resource availability in vehicular mobile networks fluctuates due to wireless channel fading and network mobility. Multi-homed mobile networks require a Quality-of-Service (QoS) control scheme that can select a routing path to guarantee high quality of communications with Correspondent Nodes (CNs) while using the maximum available bandwidth of wireless and radio communication technologies. In this chapter, the authors develop an intelligent distributed QoS control scheme which inter-operates between mobile routers, managing vehicular networks mobility, and Road Communication Gateways (RCGs). This proposed scheme manages Vehicle-to-Infrastructure (V2I) communications through enabling multi-homed vehicular networks to optimally distribute traffic among egress links of their mobile routers based on vehicular communication policies and available bandwidth and performance metrics of selected routing paths. This scheme considers the data control plane as a collaborative entity and specifies detailed operations to be performed in the mobile routers and RCGs. Simulation experiments show that the proposed scheme can improve the Congestion Window (CWND) of TCP and the e2e packet loss of video traffic, despite network mobility. It also guarantees the service parameter settings of uplink and downlink connections while achieving reasonable utilization efficiency of network resources and fairly sharing them.

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