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Santhi, G.
- A Survey of QOS Routing Protocols for Mobile AD HOC Networks
Abstract Views :207 |
PDF Views:135
Authors
Affiliations
1 Department of IT, Pondicherry Engineering College, IN
2 Department of EEE, Pondicherry Engineering College, IN
1 Department of IT, Pondicherry Engineering College, IN
2 Department of EEE, Pondicherry Engineering College, IN
Source
AIRCC's International Journal of Computer Science and Information Technology, Vol 2, No 4 (2010), Pagination: 125-136Abstract
A Mobile Ad-hoc Network (MANET) is composed of mobile nodes without any infrastructure. MANET applications such as audio/video conferencing, webcasting requires very stringent and inflexible Quality of Service (QoS). The provision of QoS guarantees is much more challenging in MANETs than wired networks due to node mobility, limited power supply and a lack of centralized control. Many researches have been done so as to provide QoS assurances by designing various MANET protocols. In recent years a number of QoS routing protocols with distinguishing features have been newly proposed. However, systematic performance evaluations and comparative analysis of these protocols in a common realistic environment have been performed only in a limited manner. This paper presents a thorough overview of QoS routing metrics, resources and factors affecting performance of QoS routing protocols. The relative strength, weakness, and applicability of existing QoS routing protocols are also studied and compared. QoS routing protocols are classified according to the QoS metrics used, type of QoS guarantee assured and their interaction with the medium access control (MAC) protocol.Keywords
MANETs, Quality of Service, Routing Protocol, Mobile Node, Taxonomy.- EOQ Pharmaceutical Inventory Model for Perishable Products with Pre and Post Discounted Selling Price and Time Dependent Cubic Demand
Abstract Views :228 |
PDF Views:0
Authors
G. Santhi
1,
K. Karthikeyan
1
Affiliations
1 Department of Mathematics, SAS, VIT University, Vellore, IN
1 Department of Mathematics, SAS, VIT University, Vellore, IN
Source
Research Journal of Pharmacy and Technology, Vol 11, No 1 (2018), Pagination: 111-116Abstract
In this article we propose pharmaceutical inventory model for perishable products with pre and post discounted selling price and time dependent cubic demand. Mostly the pharmaceutical company considered the constant rate of deterioration. In the majority of the earlier studies, the demand and holding cost has been considered to be constant function, which is not true in most of the practical situations as the manufacturing medicine/setting machine cost and patient record keeping costs or even cost of keeping the pharmaceutical items in the cold storage increases with time. In view of this, we develop a pharmaceutical inventory model in which the time dependent demand is cubic and holding cost is linear function of time. Also we introduce both pre and post-deterioration discounts on unit selling price which determine discount to be given on unit selling price during deterioration so as to maximize the total profit. Finally, numerical examples and sensitivity analysis are given for illustration of the model.Keywords
Deteriorating Items, Pharmaceutical Products, Cubic Demand, Holding Cost, Discounted Selling Price.References
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