American Journal of Computer Engineering

Understand Congestion: It’s Effects on Modern Networks

Review article of American Journal of Computer Engineering Understand Congestion: It’s Effects on Modern Networks Omotosho Olawale, Oyebode Aduragbemi* and Hinmikaiye Johnson Department of Computer Science Babcock University, Nigeria As Internet, can be considered as a Queue of packets, where transmitting nodes are constantly adding packets and some of them (receiving nodes) are removing packets from the queue. So, consider a situation where too many packets are present in this queue (or internet or a part of internet), such that constantly transmitting nodes are pouring packets at a higher rate than receiving nodes are removing them (Cardwell, Cheng, Gunn, Yeganeh, & Jacobson, 2016). This degrades the performance, and such a situation is termed as Congestion. Main reason for congestion in a network system is a greater number of packets into the network than it can handle. So, the objective of congestion control can be summarized as to maintain the number of packets in the network below the level at which performance falls off dramatically (Faisal Shahzad1, Ullah, Siddique, Khurram, & Saher, 2015). The nature of a Packet switching network can be summarized in following points: • A network of queues • At each node, there is a queue of packets for each outgoing channel • If packet arrival rate exceeds the packet transmission rate, the queue size grows without bound • When the line for which packets are, queuing becomes more than 80% utilized, the queue length grows alarmingly When the number of packets dumped into the network is within the carrying capacity, they all are delivered, expect a few that have to be rejected due to transmission errors). And then the number delivered is proportional to the number of packets sent (Evans & Filsfils, 2007). However, as traffic increases too far, the routers are no longer able to cope, and ...

Enhancing Networks Lifetime Using Two-Step Uniform Clustering Algorithm (TSUC)

Research article of American Journal of Computer Engineering Enhancing Networks Lifetime Using Two-Step Uniform Clustering Algorithm (TSUC) Vrince Vimal and Madhav J Nigam Department of Electronics and Communication Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India Wireless sensor networks have enticed lot of spotlight from researchers all around globe, owing to its wide applications in industrial, military and agricultural fields. Energy conservation and node deployment strategies play a paramount role for effective execution of Wireless Sensor Networks. Clustering of nodes in the wireless sensor networks is an approach commenced to achieve energy efficiency in the network. Clustering algorithm, if not executed properly can reduce life of the network. In this paper, a Two -Step Uniform Clustering (TSUC) algorithm has been proposed with the aim to provide connectivity to the nodes in every part of the network. This algorithm increases networks lifetime and throughput by re-clustering isolated nodes rather than providing them connectivity by already connected node. Results obtained after simulation showed that proposed TSUC algorithm performed better than the other existing clustering algorithm. Keywords: WSN, Clustering Algorithm, TSUC, Networks lifetime ...

Underwater Wireless Sensor Networks Challenges: A Review

Review article of American Journal of Computer Engineering Underwater Wireless Sensor Networks Challenges: A Review Taranpreet Kaur Assistant Professor, Dept: Computer Science, Mata Gujri College, Sri Fatehgarh Sahib The underwater wireless sensor network consists of sensors that enable the exploration of natural undersea resources and gathering scientific data in collaborative monitoring missions. Underwater wireless sensor Network consists of variable number of floating and anchored sensors, sink and vehicles that are deployed over an area to be explored. Applications of underwater sensing range from oil industry to aquaculture, and include instrument monitoring, pollution control, climate recording, Prediction of natural disturbances, search and survey missions, and study of marine life. UWSN is a network of autonomous sensor nodes. Which are spatially distributed underwater to sense the water-related properties such as quality, temperature, and pressure? The sensed data can be utilized by variety of applications that can be used for the benefit of humans. The sensor nodes, stationary or mobile are connected wirelessly via communication modules to transfer various events of interest. In this paper, several fundamental key aspects of underwater acoustic communications are investigated. Different architectures for two-dimensional and three-dimensional underwater sensor networks are discussed, and the underwater channel is characterized. The main challenges for the development of efficient networking solutions posed by the underwater environment are detailed at all layers of the protocol stack. Furthermore, open research issues are discussed and possible solution approaches are outlined. Keywords: Underwater Wireless Sensor Networks, Applications and Challenges ...

The Impact of OTT Services in Nigeria: Regulators, Operators and Customers Perspective

Review article of American Journal of Computer Engineering The Impact of OTT Services in Nigeria: Regulators, Operators and Customers Perspective Damilola Fowora*, Oludele Awodele, Olakunle Olayinka and Oyebode Aduragbemi Department of Computer Science, Babcock University, Nigeria Advancement in the field of Information Communication Technology (ICT) has led to creation of new technologies, one of such is Over-The-Top technology. This new technology offers low-cost delivery of digital information content and services which includes VoIP services, instant messaging services and so on to consumers. The Over-The-Top services do not have a network system of their own but instead rely on of telecommunication operator networks and other Internet Service providers for the delivery of their services, without any policy or lease agreement with these operators. This work focuses on considering the perspectives of the regulatory board, the telecommunication operators and the consumer has it relates to this technology. We also analyse the impact of the Over the Top technology has on the Nigerian economy also. Keywords: Over-The-Top, Regulators, Nigeria, Telecommunication Operator, Consumer ...

Dr. M. Ramesh Kumar
Associate Professor/Project Coordinator, Department of Computer Science and Engineering, VSB College of Engineering Technical Campus

Dr. S. Krishna Murthy
Associate Professor, Department of Applied Mathematics, Defence Institute of Advanced Technology, Deemed University(DU), Girinagar, Pune

Dr. Yashar Hashemi
Ph.D in Electrical Power Engineering, Coding and Diagram Expert, Tehran Regional Dispatching, Tehran Regional Electric, Company, Tehran, Iran

Dr. G.N.Balaji
Assistant Professor, Dept. of Computer Science and Engineering, Cvr college of engineering

Dr. Mohd Muntjir
Information Technology Department, College of Computers and Information Technology, Taif University

Dr. Parveen Sharma
Assistant Professor, School of Mechanical Engineering, Lovely Professional University

Dr. Pushpraj Pal
Assistant Professor, SRM IET Ambala

Dr. S. Sathish
Assistant Professor and Head, Dept. of Automobile Engineering, Vels University, Pallavaram, Chennai.

Dr. Vaibhav Sundriyal
Research Scientist, Old Dominion University research Foundation, USA

Dr. Bingxu Wang
Automotive Tribology Center (ATC), School of Engineering and Computer Science, Oakland University

Dr. Sagar Chandrakant Jirapure
Assistant Professor, Mechanical Engineering Department, Jawaharlal Darda Institute of Engg and Technology.Yavatmal

Dr. S. Arivoli
Assistant Professor/EEE, VSB College of Engineering Technical Campus, Coimbatore-642109

Assistant Professor, R.D. Engineering College Technical Campus, Ghaziabad

Dr. Kuntal Barua
Assistant Professor, Computer Science & Engineering, SANGAM UNIVERSITY

Head-Research&Development, QUANTS IS & CS, India

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American Journal of Computer Engineering

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1. Avinaba Mukherjee, Sourav Sikdar, Anisur Rahman Khuda-Bukhsh. Evaluation of ameliorative potential of isolated flavonol fractions from Thuja occidentalis in lung cancer cells and in Benzo(a) pyrene induced lung toxicity in mice. International Journal of Traditional and Complementary Medicine, 2016; 1(1): 0001-0013. 
2. Vikas Gupta, Parveen Bansal, Junaid Niazi, Kamlesh Kohli, Pankaj Ghaiye. Anti-anxiety Activity of Citrus paradisi var. duncan Extracts in Swiss Albino Mice-A Preclinical Study. Journal of Herbal Medicine Research, 2016; 1(1): 0001-0006.

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