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Low latency automatic repeat request protocol for time sensitive GSM-enabled smart phone video streaming services

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Publication Date
2018
Author
Nyangaresi, Vincent Omollo
Abeka, Silvance O.
Arika, Rebecca N.
Type
Article
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Abstract/Overview

Automatic repeat request protocols (ARQ) are fundamental error control techniques employed in wired as well as wireless networks. These protocols facilitate error recovery based on feedback messages and retransmissions. However, the performance of these protocols is heavily influenced by the propagation delay occasioned by the requirement that the sender must wait for the receiver feedback before making a decision on whether to retransmit a packet or shift to the right of the sliding window and transmit another packet. As such, the performance of ARQ protocols heavily relies on the feedback channel reliability. Considering channels with long round trip times, the consequence is that frame delivery may be severely belated. In video streaming on smart phones, delays are undesirable especially when users are watching live events. Such applications can therefore be regarded as time sensitive. The weaknesses of the current ARQ protocol include inefficiency in bandwidth usage due to retransmissions of frames already sent and received correctly when one of the frames is lost, time wastage by the stop and wait behaviour. Based on these shortcomings, towards the end of this paper, dual asynchronous prioritized retransmission ARQ (DAPR-ARQ) protocol is suggested as a possible remedy for these ARQ shortcomings.

Subject/Keywords
GBN-ARQ; SAW-ARQ; SR-ARQ; time sensitivity; video streaming
Publisher
IJSRCSEIT
ISSN
2456-3307
Permalink
http://ir.jooust.ac.ke:8080/xmlui/handle/123456789/2838
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