Author
G. Santhosh Kumar
Other affiliations: Indian Institute of Chemical Technology, Rajagiri
Bio: G. Santhosh Kumar is an academic researcher from Cochin University of Science and Technology. The author has contributed to research in topics: Wireless sensor network & Malayalam. The author has an hindex of 13, co-authored 93 publications receiving 745 citations. Previous affiliations of G. Santhosh Kumar include Indian Institute of Chemical Technology & Rajagiri.
Papers published on a yearly basis
Papers
More filters
01 Dec 2008
TL;DR: LEACH-Mobile protocol has been enhanced based on a mobility metric "remoteness" for cluster head election to ensure high success rate in data transfer between the cluster head and the collector nodes even though nodes are moving.
Abstract: Cluster based protocols like LEACH were found best suited for routing in wireless sensor networks. In mobility centric environments some improvements were suggested in the basic scheme. LEACH-Mobile is one such protocol. The basic LEACH protocol is improved in the mobile scenario by ensuring whether a sensor node is able to communicate with its cluster head. Since all the nodes, including cluster head is moving it will be better to elect a node as cluster head which is having less mobility related to its neighbours. In this paper, LEACH-Mobile protocol has been enhanced based on a mobility metric "remoteness" for cluster head election. This ensures high success rate in data transfer between the cluster head and the collector nodes even though nodes are moving. We have simulated and compared our LEACH-mobile-enhanced protocol with LEACH-mobile. Results show that inclusion of neighbouring node information improves the routing protocol.
130 citations
TL;DR: A series of novel 1,2,3-triazole substituted N-phenyl nitrone derivatives 5a-e and 6a-p exhibited significant inhibition of IL-1β secretion as a measure of anti-inflammatory activity against various cancer cell lines.
93 citations
TL;DR: A series of novel alkyltriazole tagged pyrido[2,3-d]pyrimidine derivatives 5 and 6 was prepared starting from 2, 3-active functional pyridine 1via cyclization, propargylation followed by reaction with alkyl or perfluoroalkyl azides under Sharpless conditions.
90 citations
Posted Content•
TL;DR: The proposed system make use of bitwise representation of votes and only the shares are used for transmission and computation of result, which is hence secure and reliable and does not make any number theoretic assumptions for security.
Abstract: E-voting systems (EVS)are having potential advantages over many existing voting schemes.Security, transparency, accuracy and reliability are the major concern in these systems.EVS continues to grow as the technology advances.It is inexpensive and efficient as the resources become reusable.Fast and accurate computation of results with voter privacy is the added advantage.In the proposed system we make use of secret sharing technique and secure multi party computation(SMC) to achieve security and reliability.Secret sharing is an important technique used for SMC. Multi-party computation is typically accomplished using secret sharing by making shares of the input and manipulating the shares to compute a typical function of the input.The proposed system make use of bitwise representation of votes and only the shares are used for transmission and computation of result.Secure sum evaluation can be done with shares distributed using Shamir's secret sharing scheme.The scheme is hence secure and reliable and does not make any number theoretic assumptions for security.We also propose a unique method which calculates the candidates individual votes keeping the anonymity.
36 citations
TL;DR: The propargyl alcohol on reaction with alkylazides under Sharpless conditions through click chemistry concept gave exclusively 1,4-disubstituted triazoles which were screened against four human cancer cell lines and promising compounds have been identified.
29 citations
Cited by
More filters
TL;DR: This review has compiled and discussed specifically the anticancer potential of quinoline derivatives, which could provide a low-height flying bird's eye view of theQuinoline derived compounds to a medicinal chemist for a comprehensive and target oriented information for development of clinically viable anticancer drugs.
530 citations
TL;DR: This paper provides the taxonomy of various clustering and routing techniques in WSNs based upon metrics such as power management, energy management, network lifetime, optimal cluster head selection, multihop data transmission etc.
430 citations
TL;DR: This paper surveys the variants of LEACH routing protocols proposed so far and discusses the enhancement and working of them, and makes suggestions on future research domains in the area of WSN.
Abstract: Even after 16 years of existence, low energy adaptive clustering hierarchy (LEACH) protocol is still gaining the attention of the research community working in the area of wireless sensor network (WSN). This itself shows the importance of this protocol. Researchers have come up with various and diverse modifications of the LEACH protocol. Successors of LEACH protocol are now available from single hop to multi-hop scenarios. Extensive work has already been done related to LEACH and it is a good idea for a new research in the field of WSN to go through LEACH and its variants over the years. This paper surveys the variants of LEACH routing protocols proposed so far and discusses the enhancement and working of them. This survey classifies all the protocols in two sections, namely, single hop communication and multi-hop communication based on data transmission from the cluster head to the base station. A comparitive analysis using nine different parameters, such as energy efficiency, overhead, scalability complexity, and so on, has been provided in a chronological fashion. The article also discusses the strong and the weak points of each and every variants of LEACH. Finally the paper concludes with suggestions on future research domains in the area of WSN.
302 citations
TL;DR: The underwater acoustic environment and the challenges to the MAC protocols design in UWSNs are described and a comparative study of several types of MAC protocols according to current existing diverse implementations is provided.
Abstract: Underwater Wireless Sensor Networks (UWSNs) are expected to support a variety of civilian and military applications. In UWSNs, Medium Access Control (MAC) protocol has attracted strong attention due to its potentially large impact to the overall network performance. Unlike terrestrial networks, which mainly rely on radio waves for communications, UWSNs utilize acoustic waves, which pose a new research challenge in the design of MAC protocols. To present the development of MAC protocols in UWSNs, this paper surveys the current state-of-the-art MAC protocols for UWSNs. In the early development, the performance in terms of delay and throughput of the UWSNs has been the major concern of the MAC layer protocol design. Later, the design of energy-efficient MAC protocols becomes a new research focus because sensor nodes are generally powered by batteries which are less likely to be recharged. In this paper, we first describe the underwater acoustic environment and the challenges to the MAC protocols design in UWSNs. We then provide a comparative study of several types of MAC protocols according to current existing diverse implementations. Furthermore, open research issues will be summarized. Hopefully, this survey will inspire more active research in this area.
247 citations