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Pandey K.,Jaypee Institute of Information Technology | Raina S.K.,Jaypee Institute of Information Technology | Rao R.S.,Ambedkar Institute of Advanced Communication
Souvenir of the 2015 IEEE International Advance Computing Conference, IACC 2015 | Year: 2015

Development of intelligent transportation system is the need of all the developing countries where urbanization and industrialization is rapidly growing. VANETs are being used as a tool for improving road safety by alarming the drivers about accidents occurred ahead of them or for providing internet access to the passengers via gateways along the road. Due to highly dynamic nature of nodes in VANETs, designing a routing protocol for VANET is quite challenging compared to MANET environment. Researchers have suggested several routing mechanism for VANETs. Few routing decision are based on topology based selection whereas others have considered different parameters like location information of nodes, traffic lights etc. As no benchmarking scheme is available for choosing a routing protocol in VANET, this article gives an insight on how to choose a routing protocol depends on varying condition of traffic. Three popular protocols AODV, DSR and LAR have been chosen for analysis on varying traffic environment. All the three protocols have been critically tested for different metrics such as Throughput, Packet Delivery Ratio and Routing overhead during the simulation. Simulation is carried out with the help of open-source simulation tools NS2, a network simulator, and SUMO, a traffic simulator. © 2015 IEEE. Source

Sharma A.K.,Guru Gobind Singh Indraprastha University | Reddy B.V.R.,Guru Gobind Singh Indraprastha University | Mittal A.,Ambedkar Institute of Advanced Communication
Proceedings - 2015 IEEE International Conference on Computational Intelligence and Communication Technology, CICT 2015 | Year: 2015

A slot loaded micro strip antenna with an aperture coupled feed is proposed. The basic radiator is a square patch with a 'dual loop' shaped slot cut into the patch area. The usable bandwidth of the slotted antenna is 840 MHz (2.37-3.21 GHz) which is appropriate for WLAN application in the 2.4-2.484 GHz band and WiMax application in 2.5-2.69 GHz band. The antenna is designed, simulated and optimized for wideband RF performance using HFSS. The simulated 2:1 VSWR bandwidth of the antenna is 30.10% with respect to the mid-band frequency of 2.79 GHz. The proposed antenna gain is greater than 6.5 dBi in the WLAN band and more than 7.3 dBi in the WiMax band. The antenna presents a patch size reduction of 44% when compared to a conventional square micro strip patch antenna. The antenna has an overall dimension of 70 x 70 x 11.58 mm3. © 2015 IEEE. Source

Das S.,Galgotias University | Das I.,Assam University | Purkayastha B.S.,Assam University | Raw R.S.,Ambedkar Institute of Advanced Communication | Sahana S.,Galgotias University
International Conference on Computing, Communication and Automation, ICCCA 2015 | Year: 2015

In this paper, we have evaluated performance of various routing protocols for Vehicular Ad Hoc Network (VANET) in different traffic patterns with real vehicular traces. The vehicular movements are based on intelligent driver model with road intersection. Our objectives is to provide a comparative analysis among various ad hoc routing protocols based on packet delivery ratio. Routing protocols are LAR1, AODV and DSR protocols. The traffic patterns categorize as sparse, moderate and dense based on the number of nodes. The results show that LAR1 protocol outperform others. The maximum packet delivery ratio obtained is 99.52% in the sparsely populated network. We have used Glomosim 2.03 and VANETMobiSim simulator for our analysis. © 2015 IEEE. Source

Pandey K.,Jaypee Institute of Information Technology | Raina S.K.,Jaypee Institute of Information Technology | Raw R.S.,Ambedkar Institute of Advanced Communication
International Journal of Communication Networks and Distributed Systems | Year: 2016

Vehicular ad-hoc network (VANET) is an important technology for future development of intelligent transportation systems. Due to the highly-dynamic nature of vehicular nodes, network topology changes very frequently which complicate the routing of data packets. A number of routing protocols have been developed by various researchers. Hop count is a key parameter in evaluating the performance of a routing protocol. Number of hops required in directional routing protocols is more in comparison to other routing protocols. For a city vehicular traffic scenario we propose an improved direction-based location aided routing (D-LAR) protocol that we call distance and direction-based location aided routing (DD-LAR) protocol. A mathematical model for DD-LAR protocol has been developed to examine its performance on path duration and hop count metric. Simulations have been done in MATLAB and from the results, it can be seen that DD-LAR routing protocol shows significant performance improvement over D-LAR and LAR in terms of reducing the hop count and maximising the path duration. © Copyright 2016 Inderscience Enterprises Ltd. Source

Tangnu S.,Ambedkar Institute of Advanced Communication | Sharma A.,Ambedkar Institute of Advanced Communication
IEEE Region 10 Annual International Conference, Proceedings/TENCON | Year: 2012

This paper presents investigative study on the life transitions, problems faced by a woman as she chooses engineering as career, and thus the preferences, priorities, expectations and apprehensions. Around 200 women comprising of student community, faculties, and working professionals were surveyed and the responses are recorded herein. Lots of positives have resulted as self satisfaction is what drives the women engineers while money being not a major concern. Social discrimination is still found to be a main issue. Requirement for upliftment and consideration of women engineers as part of mainstream workforce for the development, setting aside the gender bias is proposed. © 2012 IEEE. Source

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