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Link Duration, Path Stability and Comparesion of MANET Routing Protcols
Abstract and Figures
We propose a framework for routing protocols in wireless multi-hop Networks (WMhNs). In this framework we model, simulate and compare impact of link availability probability , path stability and route stability. For this analysis, we select most widely used routing three reactive protocols; AODV, DSR, DYMO and three proactive protocols; DSDV, FSR and OLSR. Number of connections, number of nodes (node density) and relative velocity of nodes are the performance evaluation parameters. A novel contribution of this work is to improve the efficiency of protocols as MOD-AODV, MOD-DSR, MOD-DYMO, MOD-FSR and MOD-OLSR. The comparison-based on simulation of both default and modified routing protocols is carried out under the performance parameters; Packet Delivery Ratio (PDR), Average End-to-End Delay (AE2ED) and Normalized routing Overhead (NRO). Further we analyze the impact of both factors; routing protocols (default and modified) and node density in performance parameters using 2k Factorial method that how they are affecting them with different variations. From extensive simulations, we observe that MODDSR, DSR, MOD-DYMO and DYMO outperform all the remaining routing protocols in terms of link availability probability, path duration and route stability at the cost of higher values of NRO. While analyzing with 2k Factorial method, it is observed that MOD-DSR and DSR performing good enough by showing higher values in PDR, whereas low values in AE2ED at the cost of high value of NRO. For the simulation work we use Network Simulator NS-2 and Matlab to verify the results observed from NS-2.
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