S. Kumar's research while affiliated with COMSATS University Islamabad and other places

Publications (3)

Article
Full-text available
In this paper, a novel framework is presented through link and path duration for link availability of paths. Further, we evaluate and analyze our work by varying the number of nodes, pause time and speed in VANETs. We select three routing protocols namely Ad-hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR) and Fish-eye State Routi...
Article
This paper presents the link availability probability. We evaluate and compare the link availability probability for routing protocols; Ad hoc On-demand Distance vector (AODV), Dynamic Source Routing (DSR) and Fisheye State Routing (FSR) for different number of connections and node density. A novel contribution of this work is enhancement in existi...
Article
In this paper, we evaluate and compare the impact of link duration and path stability of routing protocols; Destination Sequence Distance vector (DSDV), Dynamic MANET On- Demand (DYMO) and Optimized Link State Routing (OLSR) at different number of connections and node density. In order to improve the efficiency of selected protocols; we enhance DYM...

Citations

... A number of works in literature have modeled link availability in ad hoc networks relating to mobile ad hoc network (MANET) or vehicular ad hoc network (VANET) [21][22][23][24]. However, the inherent characteristics of FANET make the models unsuitable. ...
... Based on the urban scenario, [22] divides four different motion cases according to the velocity and direction of nodes, then it deduces the calculating formulas for link availability probability, and finally, it has a comparison with other routing schemes and outperforms than others. However, the design only considers the simple cases regardless of the complex motion for nodes, such as the motor direction may be not parallel but at an angle, so its research is not sufficient at a certain degree. ...
... The researchers considered the throughput, end to end delay (E2ED) and normalized routing load (NRL) [10]. Some researchers evaluated and compared the Packet Delivery Ratio (PDR), Normalized Routing Overhead (NRO) and average E2ED for DSDV and OLSR [11]. ...