Abstract
The routing protocols play an important role in Mobile Ad-Hoc Network (MANET) because of the dynamically change of its topology. Optimized Link State Routing (OLSR), unawareness of Quality of Service (QoS) and power-consumed protocol, is an example of a widely-used routing protocol in MANET. The Multi-Point Relays (MPR) selection algorithm is very crucial in OLSR. Therefore, firstly, we propose a heuristic method to select the best path based on two parameters; Bit Error Rate (BER) derived from the physical layer and Weighted Connectivity Index (CI) adopted from the network layer. This can be done via the cross-layer design scheme. This is anticipated to enhance the performance of OLSR, provide QoS guarantee and improve the power consumption. The performances of the proposed scheme are investigated by simulation of two types of traffics: CBR and VBR (MPEG-4), evaluated by metrics namely Throughput, Packet Delivery Ratio (PDR), Average End-to-End Delay, Control Overhead and Average Total Power Consumption.We compare our results with the typical OLSR and OLSR using only Weighted CI. It is obvious that our proposed scheme provides superior performances to the typical OLSR and OLSR using only Weighted CI, especially, at high traffic load.
Highlights
Mobile Ad-Hoc Network (MANET), an infrastructure-less mobile network, is formed by a collection of mobile interfaces without any support of the centralised administration
We extend the investigation further into our proposed method called CBC-Optimized Link State Routing (OLSR) [6], where the Bit Error Rate (BER) and Weighted CI are adopted in the cross-layer framework for OLSR protocol under two traffic types: CBR (Constant Bit Rate) and VBR (Variable Bit Rate).It is anticipated that the paths found by our proposed method have higher stability since the lowest BER and the highest Weighted Connectivity Index (CI) in a link is adopted
Constant Bit Rate Service 5.1.1 CBR: Effect of Node Density This section shows the impact of node density on the performance evaluation metrics of our proposed CBC-OLSR, standard OLSR and OLSR using only Weighted CI
Summary
MANET, an infrastructure-less mobile network, is formed by a collection of mobile interfaces without any support of the centralised administration. We extend the investigation further into our proposed method called CBC-OLSR [6], where the BER and Weighted CI are adopted in the cross-layer framework for OLSR protocol under two traffic types: CBR (Constant Bit Rate) and VBR (Variable Bit Rate).It is anticipated that the paths found by our proposed method have higher stability since the lowest BER and the highest Weighted Connectivity Index (CI) in a link is adopted This results in the efficient power consumption in MANET as well. The main contribution of this work is the crosslayer framework using BER of the link and Weighted CI, from physical and network layer, respectively to improve the MPR-selection process and routing-table computation This leads to more stable path between source and destination which can enhance the overall performance of OLSR as well as to reduce the overall power consumption of the network.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International journal of Computer Networks & Communications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
