P J Kumar

Department of Digital Communications

School of Information Technology and Engineering

Vellore Campus

Ilango P.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Wireless Personal Communications

6LoWPAN network consists of embedded devices and sensors that senses environmental data and passes it to a root called as a 6LBR (6LoWPAN Border Router) which further transfers it to an Internet server for aggregation and processing. Earlier definition of 6LoWPAN consists of devices which are static with constrained resources such as computing power, memory, battery power and communication bandwidth. Recent additions such as mobile devices which are part of the 6LoWPAN network often cause frequent topology changes and disconnections, leading to degraded performance of the network. Handover delay, data loss rate, number of control messages, energy utilization are some of the performance metrics that has been focused and improved by recent works in the literature. But the proposed approaches work well when the number of mobile nodes and mobility rate are moderate. We identify the issues that arise in the 6LoWPAN RPL based network due to higher number of mobile nodes and higher mobility rate which causes problems like delay in data transmission and degraded parent node performance. In this paper we study, analyse and propose modifications in the popular protocols that support mobility in 6LoWPAN such as EC-MRPL. We propose a best-effort scheme called LNR-PP (Leaf node count and RSSI based Parent Prediction) to identify affected Static Nodes (SN) to whom large number of Mobile Nodes (MN) are connected. We call this scheme as a best effort since the parent prediction depends upon the number of neighbours available within the reach of MN in mobility. LNR-PP performs balanced leaf node (Mobile Node) allocation to SN in an effort to minimize the number of RPL control message packets, delay in forwarding data from the MN and power required to transmit control and data packets through SN. This enables the mobile nodes (MN) to communicate with DODAG-ROOT with guaranteed QoS measures under high mobility scenario. We developed a mathematical model to realize the benefits of the proposed scheme which can be incorporated into EC-MRPL and simulated with sample network parameters in MATLAB. The results obtained through simulation shows a significant improvement in term of number of RPL control message packets such as DIS and DIO, power requirement to transfer control and data packets through SN and delay encountered by SN while forwarding large volume of data from MN. © 2019 Elsevier B.V.

Computer Communications

LNR-PP: Leaf Node Count and RSSI Based Parent Prediction Scheme to Support QoS in Presence of Mobility in 6LoWPAN

Social Networking Sites (SNSs) are web-based facilities that allow for social interaction, sharing, communication and collaboration in today's world. In the current study, patterns of use of social media among students at a public Midwestern university are examined. In addition, students were surveyed regarding concerns for privacy and trust and whether concerns differed by gender, ethnicity, employment and relationship status. The survey data gathered from students suggest that students mostly used SNSs from less than one hour to about 3 hours a day and for communication and maintaining relationships. Students also had academic uses for SNSs. Even though concerns for privacy and trust exist, they did not differ by gender, employment and relationship status and students are still willing to use SNSs. The findings from this research have implications for various stakeholders especially instructors who may be considering the use of SNS for academic purposes.

Indian Journal of Science and Technology

Effective Health Promotion Interventions for Targeted Audience using Social Networking Sites: A Systematic Review

RFC Editor

Ad hoc On-Demand Distance Vector (AODV) Routing

2014 International Conference on Electronics, Communication and Computational Engineering (ICECCE)

Design of series active filter for power quality improvement

Journal of Applied Computer Science Methods

Minimum Utilization of Electromagnetic (2G, 3G, 4G) Spectrum in Seamless Mobility Based on Various Estimation Methods

IEEE Transactions on Mobile Computing

Handling Selfishness in Replica Allocation over a Mobile Ad Hoc Network

An Optimized Replica Allocation Algorithm Amidst of Selfish Nodes in MANET

Journal	Data powered by TypesetWireless Personal Communications
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	0929-6212
Open Access	0