Oriental Journal of Computer Science and Technology

Ishwar Baidari ¹, S. P. Sajjan ¹, G. Vijaykumar ¹, H. Ajith ¹

Affiliations
1 CSDEPT, KU, Dharwad, IN

Abstract

Real Time Analytic Processing (RTAP) in this modern world is inducing huge data traffic by everyone knowingly or unknowingly compared to few years back data traffic where only few companies was source of data traffic. This is really a challenge to the technology and needs a solution which can be implemented at the earliest and with an ease. This paper tries to discuss about the solution for handling the Big-Data traffic without downgrading the processing time. However, the analysis of big data can be troublesome because of its heterogeneous nature i.e. Big-data often involves the collection and storage of mixed data based on different patterns or rules. This has made the heterogeneous mixture property of data a very important issue. This paper focuses on applying "Divide and Conquer Technique" to handle the Big-data traffic using parallel processing in Network."

Keywords

Big-Data, Divide and Conquer Technique, Parallel Computer and Networks.

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Ishwar Baidari ¹, S. P. Sajjan ², Ajeet Kumar Singh ²

Affiliations
1 Karnatak University of Dharwad-03, IN
2 Central University of Karnataka-67, IN

Abstract

Wireless local area networks (WLANs) are in a period of great expansion and there is a strong need for them to support multimedia applications. With the increasing demand and penetration of wireless services, users of wireless networks now expect Quality of Service (QoS) and performance comparable to what is available from fixed networks. Providing QoS requirements like good throughput and minimum access delay are challenging tasks with regard to 802.11 WLAN protocols and Medium Access Control (MAC) functions. This research is done to study, the presently implemented schemes (the Point Coordination Function (PCF) of IEEE 802.11, the Enhanced Distributed Coordination Function (EDCF) of the proposed IEEE 802.11e extension to IEEE 802.11), solves these issues and what can be done to improve them further. The metrics used were Throughput, Data Drop, Retransmission and Medium Access Delay, to analyze the performance of various MAC protocols in providing QoS to users of WLAN. Two scenarios, with same Physical and MAC parameters, one implementing the DCF and other EDCF, were created in the network simulation tool (OPNET MODELER) to obtain the results. The results showed that the performance of EDCF was better in providing QoS for real-time interactive services (like video conferencing) as compared to DCF, because of its ability to differentiate and prioritize various services. Index Terms - Wireless local area networks (WLANs).

Keywords

Expect Quality of Service (QoS), Point Co-ordination Function (PCF), Enhanced Distributed Coordination Function (EDCF), OPNET.

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S. P. Sajjan ¹, Ravikumar Roogi ¹, Vijaykumar Badiger ¹, Sharanu Amaragatti ²

Affiliations
1 Department of Computer Science, KU, Dharwad, IN
2 Consonant Consulting India Ltd Pvt, Bangalore, IN

Abstract

This paper introduces a well known NP- Complete problem called the Knapsack Problem, presents several algorithms for solving it, and compares their performance. The reason is that it appears in many real domains with practical importance. Although it’s NP-Completeness, many algorithms have been proposed that exhibit impressive behaviour in the average case. This paper introduce A New approach to solve a Knapsack Problem. An overview of the previous research and the most known algorithms for solving it are presented. The paper concludes with a practical situation where the problem arises.

Keywords

Knapsack, Linear Programming, Algorithm.

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