An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network
碩士 === 國立中山大學 === 電機工程學系研究所 === 102 === Multicast is an effective mechanism to save network bandwidth while transmitting real-time video streams in wireless networks. However, it lacks of a mechanism of error control. Packet errors happen easily because wireless channels are error-prone; this may br...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2014
|
Online Access: | http://ndltd.ncl.edu.tw/handle/45181170664226870871 |
id |
ndltd-TW-102NSYS5442031 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-102NSYS54420312017-03-22T04:42:38Z http://ndltd.ncl.edu.tw/handle/45181170664226870871 An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network 在行動通訊網路進行即時影音串流群播的ARQ重傳機制 Ching-hua Li 黎青華 碩士 國立中山大學 電機工程學系研究所 102 Multicast is an effective mechanism to save network bandwidth while transmitting real-time video streams in wireless networks. However, it lacks of a mechanism of error control. Packet errors happen easily because wireless channels are error-prone; this may bring a critical deterioration of the video quality. Besides, the end-to-end retransmission can not meet the strict delay constraint of a real-time video stream. In this thesis, we propose a multicast retransmission mechanism to improve the quality of real-time video streams over WiMAX network. In this mechanism, we design a MAC-layer ARQ scheme to retransmit the erroneous or lost ARQ blocks from BS, and consider three conditions, which are the bandwidth cost at retransmitting in multicast connection, the packet transmission delay and the acceptable delay constraint of MSs. We perform NS-3 simulation to demonstrate our proposed mechanism. The simulation results show that the mechanism can effectively reconstruct the quality of a real-time video stream at MSs. Furthermore, the cost of bandwidth using at retransmitting can be significantly reduced. Tsang-Ling Hsu 許蒼嶺 2014 學位論文 ; thesis 82 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立中山大學 === 電機工程學系研究所 === 102 === Multicast is an effective mechanism to save network bandwidth while transmitting real-time video streams in wireless networks. However, it lacks of a mechanism of error control. Packet errors happen easily because wireless channels are error-prone; this may bring a critical deterioration of the video quality. Besides, the end-to-end retransmission can not meet the strict delay constraint of a real-time video stream. In this thesis, we propose a multicast retransmission mechanism to improve the quality of real-time video streams over WiMAX network. In this mechanism, we design a MAC-layer ARQ scheme to retransmit the erroneous or lost ARQ blocks from BS, and consider three conditions, which are the bandwidth cost at retransmitting in multicast connection, the packet transmission delay and the acceptable delay constraint of MSs.
We perform NS-3 simulation to demonstrate our proposed mechanism. The simulation results show that the mechanism can effectively reconstruct the quality of a real-time video stream at MSs. Furthermore, the cost of bandwidth using at retransmitting can be significantly reduced.
|
author2 |
Tsang-Ling Hsu |
author_facet |
Tsang-Ling Hsu Ching-hua Li 黎青華 |
author |
Ching-hua Li 黎青華 |
spellingShingle |
Ching-hua Li 黎青華 An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network |
author_sort |
Ching-hua Li |
title |
An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network |
title_short |
An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network |
title_full |
An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network |
title_fullStr |
An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network |
title_full_unstemmed |
An ARQ Retransmission Scheme for Real-Time Video Multicasting over a Mobile Communication Network |
title_sort |
arq retransmission scheme for real-time video multicasting over a mobile communication network |
publishDate |
2014 |
url |
http://ndltd.ncl.edu.tw/handle/45181170664226870871 |
work_keys_str_mv |
AT chinghuali anarqretransmissionschemeforrealtimevideomulticastingoveramobilecommunicationnetwork AT líqīnghuá anarqretransmissionschemeforrealtimevideomulticastingoveramobilecommunicationnetwork AT chinghuali zàixíngdòngtōngxùnwǎnglùjìnxíngjíshíyǐngyīnchuànliúqúnbōdearqzhòngchuánjīzhì AT líqīnghuá zàixíngdòngtōngxùnwǎnglùjìnxíngjíshíyǐngyīnchuànliúqúnbōdearqzhòngchuánjīzhì AT chinghuali arqretransmissionschemeforrealtimevideomulticastingoveramobilecommunicationnetwork AT líqīnghuá arqretransmissionschemeforrealtimevideomulticastingoveramobilecommunicationnetwork |
_version_ |
1718433780628193280 |