NDLI: Enhancing quality of service in MANETS by effective routing

Content Provider	IEEE Xplore Digital Library
Author	Premalatha, J. Balasubramanie, P.
Copyright Year	2010
Description	Author affiliation: Department of CSE, Kongu Engineering College, Erode, India-638052 (Premalatha, J.; Balasubramanie, P.)
Abstract	This paper evaluates the performance evaluation by combining Network layer and MAC layer protocols with Transport layer congestion control mechanisms operating in a mobile adhoc network. In Adhoc networks, certain QoS parameters like error rate, delay and packet loss are increased and certain parameters like throughput and delivery ratio are decreased in Transport layer is due to MAC problems and disconnection is also possible due to mobility because the network layer is not able to detect the path to deliver the packets. So, combine the mechanisms of these three layers to improve the QoS drastically. We examine the effects of two different MAC protocols— IEEE 802.11and IEEE802.11e with AODV and DSR of routing algorithms with Slow start and Arithmetic Increase and Multiplicative Decrease (AIMD) mechanism of TCP.IEEE802.11uses distributed coordination function (DCF) where IEEE802.11e uses enhanced distributed coordination function (EDCF). Specifically, we access the impact of multiple wireless hops and node mobility on the throughput performance of TCP on each MAC protocol with two routing algorithms. Additionally the other QoS parameters of delay, Bandwidth delay product, delivery ratio and packet loss is also investigated. Results show that in all instances, the QoS parameters 15–20% improvement in throughput, 40–45% improvement in bandwidth-delay product, 10–15% improvement in delivery ratio, packet loss is reduced drastically to 40–50% in IEEE802.11e with AODV algorithm in network layer and slow start mechanism in transport layer. Similarly Results shows, the QoS parameters 35–40% improvement in throughput, 25–30% improvement in bandwidth-delay product, 15–20% improvement in delivery ratio, packet loss is reduced drastically to 20–25% in IEEE802.11e with AODV algorithm in network layer and AIMD mechanism in transport layer. But if DSR algorithm is used in the network layer instead of AODV it affects the QoS parameters. In both cases DSR algorithm increases the packet loss which in turn affects the throughput and packet delivery ratio. The reason is analyzed and suggests the suitable mechanisms implemented in each layer to enhance QoS parameters.
Starting Page	1
Ending Page	5
File Size	242868
Page Count	5
File Format	PDF
ISBN	9781424451364
DOI	10.1109/ICWCSC.2010.5415878
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-01-02
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transport protocols Mobile adhoc networks AIMD Error analysis Quality of service Access protocols Transport layer Protocol (TCP) Throughput DSR and Quality of Service (QoS) Delay Mobile ad hoc networks Medium access control (MAC) Media Access Protocol Routing protocols AODV Arithmetic Slow start
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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