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Performance-Assessment of Performance-Assessment of Distributed Video Applications Distributed Video Applications
in Next Generation in Next Generation InformationInformation Networks Networks
Adrian Kwizera, Adrian Kwizera,
Seung-Bum Lee, Seung-Bum Lee,
and Gabriel-Miro and Gabriel-Miro MunteanMuntean
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
IntroductionIntroduction Wireless networks based on the Wireless LAN (WLAN)Wireless networks based on the Wireless LAN (WLAN)
802.11a, 802.11b, 802.11g specifications 802.11a, 802.11b, 802.11g specifications Suitable for real-time transmissionSuitable for real-time transmission
Challenges in video streaming over wireless networksChallenges in video streaming over wireless networks Node mobilityNode mobility Data losses and variations in BandwidthData losses and variations in Bandwidth Heterogeneous nature of receivers Heterogeneous nature of receivers High errors in the wireless channelHigh errors in the wireless channel
Wired-cum-wireless
Wireless
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
Problem statementProblem statement
Multiple-source Multiple-source streaming streaming Distributed contents over Distributed contents over
various peers (e.g. P2P various peers (e.g. P2P file sharing)file sharing)
Sender heterogeneitySender heterogeneity Location of the sender Location of the sender
relative to the client’s relative to the client’s position. position.
Various channel status Various channel status from diversity of from diversity of technologies, etc.technologies, etc.
Sender heterogeneity and the lack of Sender heterogeneity and the lack of adaptation in multiple-source streamingadaptation in multiple-source streaming
Wired connection
Wireless connection
Wireless connection
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
Congestion-controlled Multiple-Congestion-controlled Multiple-source Multimedia Adaptation source Multimedia Adaptation
Scheme (CMMAS)Scheme (CMMAS) Bandwidth allocationBandwidth allocation
Receiver based congestion control approach Receiver based congestion control approach (TFRC).(TFRC).
Assigning bandwidth to senders from Assigning bandwidth to senders from receiver.receiver.
Involved with coarse-grained scheduling.Involved with coarse-grained scheduling. Simultaneous stream adaptationSimultaneous stream adaptation
Simple rate adaptation control approach.Simple rate adaptation control approach. Adaptation within the allocated bandwidth Adaptation within the allocated bandwidth
controlled by receiver.controlled by receiver. Involved with fine-grained scheduling .Involved with fine-grained scheduling .
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
Preliminary Streaming Preliminary Streaming TestTest
PurposePurpose To test the benefit of adaptation in multimedia To test the benefit of adaptation in multimedia
streaming in a wireless environmentstreaming in a wireless environment Test settingTest setting
Network simulator ns2, version 2.31. Network simulator ns2, version 2.31. Ad-hoc routing protocols: DSDV & AODVAd-hoc routing protocols: DSDV & AODV
TopologyTopology
Low resolution High resolution
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
Simulation resultSimulation resultPerformance statisticsPerformance statistics
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
Simulation resultSimulation result
Throughput Throughput
1 = AODV adaptation1 = AODV adaptation
2 = AODV low bit rate2 = AODV low bit rate
3 = AODV high bit rate3 = AODV high bit rate
LossLoss
1 = AODV adaptation1 = AODV adaptation
2 = AODV low bit rate2 = AODV low bit rate
3 = AODV high bit rate3 = AODV high bit rate
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
ConclusionConclusion Congestion-controlled Multiple-source Congestion-controlled Multiple-source
Multimedia Adaptation Scheme (CMMAS)Multimedia Adaptation Scheme (CMMAS) Multiple-source multimedia streaming.Multiple-source multimedia streaming. Coarse-grained bandwidth allocation based on TFRC.Coarse-grained bandwidth allocation based on TFRC. Fine-grained multimedia adaptation within allocated Fine-grained multimedia adaptation within allocated
bandwidth.bandwidth.
Future plansFuture plans Algorithm enhancement Algorithm enhancement
for sender heterogeneityfor sender heterogeneity Sender-sender Sender-sender
interaction interaction implementationimplementation
Adrian Kwizera, Seung-Bum Lee, Dr. Gabriel-Miro Muntean
Questions???Questions???
THANK YOU
Adrian Kwizera Adrian Kwizera [email protected]
Seung Bum Lee Seung Bum Lee [email protected]
Gabriel-Miro Gabriel-Miro Muntean Muntean [email protected]