NDLI: Packet loss differentiation of TCP over mobile ad hoc network using queue usage estimation

Content Provider	IEEE Xplore Digital Library
Author	Fard, M.A.K. Karamizadeh, S. Aflaki, M.
Copyright Year	2011
Description	Author affiliation: Faculty of engineering, Multi Media University, Cyberjaya, Selangor, Malaysia (Aflaki, M.) \|\| Department of Computer system and Communication, Universiti Teknologi Malaysia (Fard, M.A.K.; Karamizadeh, S.)
Abstract	The main deficiency of standard TCP and all existing variations in ad hoc mobile network arises in its inability to classify packet losses. Conventional TCP diagnoses all losses due to congestion since non-congestion losses are rare and ignorable in wired network. However, these losses are generated frequently in MANET due to signal attenuation, interference and node's mobility. In order to prevent TCP form invoking congestion control over non-congestion loss and vice versa, Packet loss classification with high accuracy is desirable. This paper proposes an end-to-end sender-side approach which aims to classify congestion loss, wireless channel loss and link failure loss using queue usage estimation. Relative One-way Trip Time is key factor in calculating queue usage. Packet losses with queue usage rate greater than predefined threshold is always interpreted as congestion loss no matter how loss recognized. However, queue usage less than threshold signify presence of non-congestion losses. Non-congestion loss which recognized by three duplicate ack labels loss due to wireless channel error since it is indication of route existence between communicating end point that duplicate ACKs moved along. However Non-congestion loss which recognized after retransmission timer expiration has been probably due to link failure. Different approaches efficiency are evaluated based on loss classification's accuracy under different conditions such as various flow numbers, various wireless loss rates and variable speed for nodes. Simulations illustrate that obtained accuracy of enhanced scheme is the highest among proposed methods.
Starting Page	81
Ending Page	85
File Size	149289
Page Count	5
File Format	PDF
ISBN	9781612844855
e-ISBN	9781612844862
DOI	10.1109/ICCSN.2011.6013667
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-27
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Accuracy MANET Conferences loss classification Delay Mobile computing Mobile ad hoc networks
Content Type	Text
Resource Type	Article

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