An Effective Improved On-Demand Routing for LEO Satellite Networks

2014 ◽  
Vol 548-549 ◽  
pp. 1393-1396
Author(s):  
Zhi Ren ◽  
Bao Yang Du ◽  
Yan Wei Liu ◽  
Ji Bi Li
Keyword(s):  
Setup Time ◽  
Satellite Networks ◽  
Control Packet ◽  
On Demand ◽  
Control Overhead ◽  
End To End Delay ◽  
Leo Satellite Networks ◽  
Redundancy Control ◽  
End To End ◽  
Demand Routing

In our Study, we Find that Location-Assisted on-Demand Routing (LAOR) Algorithm has Redundancy Control Overhead. Furthermore, LAOR does Not make Full Use of the Effective Information of New Path to Complete the Follow-up Path. to Address these Issues, an Improved Effective on-Demand Routing, Effective Improved on-Demand Routing (EIOR) Algorithm, is Proposed in this Paper. EIOR Makes Full Use of the Information of Control Packet to Update more Routing Paths, Reduces the Control Overhead for Finding Path and Increases the Real Time of Routing Updates. Moreover, EIOR Increases the Probability of Intermediate Satellite Replies Request Instead of the Destination Satellite, which Shortens the Setup Time of Path and Reduces the End-to-End Delay. it also Designs the RREP Immune Mechanism to Reduce the Control Overhead of the Network. Theoretical Analysis and Simulation Results Show that EIOR Outperforms LAOR. the EIOR can Reduce at Least 7% of the Normalized Control Overhead and 4% of the Average End-to-End Delay.

scholarly journals Comparative Performance Evaluation of On-Demand Multicast Routing Protocols for MANET

2018 ◽  
Vol 7 (S1) ◽  
pp. 123-129
Author(s):  
K. Kavitha
Keyword(s):  
Routing Protocol ◽  
Multicast Routing ◽  
High Mobility ◽  
On Demand ◽  
Control Overhead ◽  
End To End Delay ◽  
Multicast Routing Protocol ◽  
Membership Management ◽  
End To End ◽  
And Control

A Mobile Ad hoc NETwork (MANET) is a collection of wireless nodes communicating with each other in the absence of any infrastructure. Each device in a MANET is free to move independently in any direction, and will therefore change its links to other devices frequently. Each must forward traffic unrelated to its own use, and therefore be a router. The primary challenge in building a MANET is equipping each device to continuously maintain the information required to properly route traffic. Such networks may operate by themselves or may be connected to the larger Internet. In this paper, we compare the performance of On-Demand Multicast Routing Protocol (ODMRP), Adaptive demand driven Multicast Routing Protocol (ADMR) With Efficient Geographic Multicast Routing Protocol (EGMP) under different mobility models such as Random Way Point Model, Manhattan Model and Random Drunken Model. Using these models, performance metrics such as Packet Delivery Ratio, End-to-End Delay and Control Overhead are evaluated. ODMRP dynamically builds the route and manages the group membership. In ADMR, Multicast routing state is dynamically established and maintained only for active groups and only in nodes located between multicast senders and receivers. ADMR detects the high mobility without the use of GPS or other positioning system. EGMP supports a zone-based scheme to efficiently handle the two-tier membership management, and takes advantage of the membership management structure to efficiently track the locations of all the group members. The simulation result shows that the throughput of ADMR is higher than that of ODMRP and EGMP at high mobility and EGMP is high at low mobility. End to end delay and control overhead of EGMP is higher than that of ODMRP and ADMR.

AN IMPROVED MAINTENANCE STRATEGY IN AD HOC ON-DEMAND ROUTING PROTOCOLS FOR MOBILE AD HOC NETWORKS

2016 ◽  
Vol 78 (6-11) ◽  
Author(s):  
Abdulaziz Al-Nahari ◽  
Mohd. Murtadha Mohamad ◽  
Raja Zahilah
Keyword(s):  
Routing Protocols ◽  
Ad Hoc ◽  
High Mobility ◽  
Traffic Load ◽  
Maintenance Strategy ◽  
On Demand ◽  
Control Overhead ◽  
End To End Delay ◽  
Aodv Protocol ◽  
Demand Routing

In high mobility and high traffic load network situations, the delay time is affected with high end-to-end delay in reactive routing protocols such as AODV. In this paper we proposed an enhanced receiver-based AODV (ERB-AODV) routing protocol by improving the maintenance phase in AODV. ERB-AODV protocol focuses on decreasing the end-to-end delay and the control overhead in high mobility and traffic load. The receiver node uses a controller agent to update the sender node of the current available path. The agent works depend on the history of receiving data packets. Using glomosim, the ERB-ADOV protocol outperforms the AODV protocol in high mobility and traffic load. Results show that, in high mobility, the delay is decreased by 81% and the control overhead is decreased by 77%. The delay is decreased by 91% in high traffic load, and decreases the control overhead by -77% compared with AODV protocol. These results show the improvement of network delay using the new maintenance strategy on on-demand routing protocols for MANETs.

A Load-Balanced On-Demand Routing for LEO Satellite Networks

2014 ◽  
Vol 9 (12) ◽  
Author(s):  
Jingjing Yuan ◽  
Peiying Chen ◽  
Qinghua Liu ◽  
Heng Li
Keyword(s):  
Satellite Networks ◽  
On Demand ◽  
Leo Satellite Networks ◽  
Demand Routing ◽  
Leo Satellite ◽  
Load Balanced

scholarly journals Multiservice on-demand routing in LEO satellite networks

2009 ◽  
Vol 8 (1) ◽  
pp. 107-112 ◽  
Author(s):  
S. Karapantazis ◽  
E. Papapetrou ◽  
F.-N. Pavlidou
Keyword(s):  
Satellite Networks ◽  
On Demand ◽  
Leo Satellite Networks ◽  
Demand Routing ◽  
Leo Satellite

Research on Route Protocol and Architecture for WSN Based on IPv6

2012 ◽  
Vol 616-618 ◽  
pp. 2233-2238 ◽  
Author(s):  
Rui Ting Lu ◽  
Xiang Zhen Li ◽  
Jia Hui Wang ◽  
Feng Jie Sun
Keyword(s):  
Load Balancing ◽  
Routing Protocol ◽  
Network Performance ◽  
Experimental Result ◽  
Routing Overhead ◽  
On Demand ◽  
End To End Delay ◽  
Simulation Results ◽  
Demand Routing ◽  
Route Protocol

WSN based on IPv6 is a new network integrated IPv6 and WSN. The related technologies of WSN based on IPv6 was researched, and an architecture of WSN based on IPv6 was proposed according to 6LoWPAN protocol in this article. Efficient and stable route protocol is a main focus to ensure network performance. Refer to on-demand routing protocol DSR, a Load-Balancing route protocol for WSN based on IPv6 was designed. An implementation of this protocol was programmed in NS2, and its simulation results were analyzed. The experimental result shows that this protocol could effectively reduce end-to-end delay and routing overhead, improving the network performance.

scholarly journals Co-operative Detection for Malicious Nodes in Under-Attack WSN

2018 ◽  
Vol 7 (2.24) ◽  
pp. 489
Author(s):  
Shweta Ranjan Vikas ◽  
B Priyalakshmi ◽  
Nikita Gautam ◽  
Sairam Potti
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Node ◽  
Ad Hoc ◽  
Wireless Sensor ◽  
Malicious Nodes ◽  
On Demand ◽  
End To End Delay ◽  
Cluster Environment ◽  
Distance Vector ◽  
End To End

The network security must be taken into consideration in wireless sensor networks. In our project, we take sensor node data falsification (SNDF) attack using malicious nodes and co-operative detection is used. Fusioncentre collects information from the nodes created in a cluster environment and makes a global decision. The protocol used here is Ad-hoc-on demand distance vector[5] (AODV) and the performance analysis is done using parameters such as throughput and End-to-end delay. The stimulation is done in NS2 using network animator and graphical results are taken.The throughput will be increased compared to the existing system whereas End-to-End delay will be decreased.  

scholarly journals Developing a Fuzzy Logic Based on Demand Multicast Routing Protocol

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Alireza Shams Shafigh ◽  
Kamran Abdollahi ◽  
Marjan Kouchaki
Keyword(s):  
Routing Protocol ◽  
Multicast Routing ◽  
Power Level ◽  
Poor Performance ◽  
Routing Algorithms ◽  
Control Packet ◽  
Additional Information ◽  
On Demand ◽  
Control Overhead ◽  
Multicast Routing Protocol

Multicast routing is an efficient method to lead data packets from one source group to several nodes as destination group. Although multicast routing algorithms could be efficient in many situations but their routing mechanism like as route request flooding packets likely results in poor performance in comparison to unicast routing algorithms. In this research, two efficient methods are proposed to improve the performance of On Demand Multicast Routing Protocol (ODMRP). The main proposed method tries to establish a small, efficient, and high-quality forwarding group. This is achieved by augmenting the Join Query packets with additional information such as speed, power level of node, and link bandwidths. Besides, the control overhead is further reduced by restricting the domain of control packet flooding (by restricting the domain of control packet flooding). The performance evaluation shows that the proposed scheme increases the packet delivery rate by up to 40%, while reducing average end-to-end delay and consumed power by about 35% and 45%, respectively.

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