Performance-Assessment of Distributed Video Applications in Next Generation  Information  Networks Adrian Kwizera,  Seung-...
Introduction <ul><li>Wireless networks based on the Wireless LAN (WLAN) </li></ul><ul><ul><li>802.11a, 802.11b, 802.11g sp...
Problem statement <ul><li>Multiple-source streaming  </li></ul><ul><ul><li>Distributed contents over various peers (e.g. P...
Congestion-controlled Multiple-source Multimedia Adaptation Scheme (CMMAS) <ul><li>Bandwidth allocation </li></ul><ul><ul>...
Preliminary Streaming Test <ul><li>Purpose </li></ul><ul><ul><li>To test the benefit of adaptation in multimedia streaming...
Simulation result Performance statistics
Simulation result Throughput  1 = AODV adaptation 2 = AODV low bit rate 3 = AODV high bit rate Loss 1 = AODV adaptation 2 ...
Conclusion <ul><li>Congestion-controlled Multiple-source Multimedia Adaptation Scheme (CMMAS) </li></ul><ul><ul><li>Multip...
Questions??? THANK YOU Adrian Kwizera  [email_address] Seung Bum Lee  [email_address] Gabriel-Miro Muntean  [email_address]
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Performance Assessment Of Distributed Video Applications

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Performance Assessment Of Distributed Video Applications

  1. 1. Performance-Assessment of Distributed Video Applications in Next Generation Information Networks Adrian Kwizera, Seung-Bum Lee, and Gabriel-Miro Muntean
  2. 2. Introduction <ul><li>Wireless networks based on the Wireless LAN (WLAN) </li></ul><ul><ul><li>802.11a, 802.11b, 802.11g specifications </li></ul></ul><ul><ul><li>Suitable for real-time transmission </li></ul></ul><ul><li>Challenges in video streaming over wireless networks </li></ul><ul><ul><li>Node mobility </li></ul></ul><ul><ul><li>Data losses and variations in Bandwidth </li></ul></ul><ul><ul><li>Heterogeneous nature of receivers </li></ul></ul><ul><ul><li>High errors in the wireless channel </li></ul></ul>Wired-cum-wireless Wireless
  3. 3. Problem statement <ul><li>Multiple-source streaming </li></ul><ul><ul><li>Distributed contents over various peers (e.g. P2P file sharing) </li></ul></ul><ul><li>Sender heterogeneity </li></ul><ul><ul><li>Location of the sender relative to the client’s position. </li></ul></ul><ul><ul><li>Various channel status from diversity of technologies, etc. </li></ul></ul><ul><li>Sender heterogeneity and the lack of adaptation in multiple-source streaming </li></ul>Wired connection Wireless connection Wireless connection
  4. 4. Congestion-controlled Multiple-source Multimedia Adaptation Scheme (CMMAS) <ul><li>Bandwidth allocation </li></ul><ul><ul><li>Receiver based congestion control approach (TFRC). </li></ul></ul><ul><ul><li>Assigning bandwidth to senders from receiver. </li></ul></ul><ul><ul><li>Involved with coarse-grained scheduling. </li></ul></ul><ul><li>Simultaneous stream adaptation </li></ul><ul><ul><li>Simple rate adaptation control approach. </li></ul></ul><ul><ul><li>Adaptation within the allocated bandwidth controlled by receiver. </li></ul></ul><ul><ul><li>Involved with fine-grained scheduling . </li></ul></ul>
  5. 5. Preliminary Streaming Test <ul><li>Purpose </li></ul><ul><ul><li>To test the benefit of adaptation in multimedia streaming in a wireless environment </li></ul></ul><ul><li>Test setting </li></ul><ul><ul><li>Network simulator ns2, version 2.31. </li></ul></ul><ul><ul><li>Ad-hoc routing protocols: DSDV & AODV </li></ul></ul><ul><li>Topology </li></ul>Low resolution High resolution
  6. 6. Simulation result Performance statistics
  7. 7. Simulation result Throughput 1 = AODV adaptation 2 = AODV low bit rate 3 = AODV high bit rate Loss 1 = AODV adaptation 2 = AODV low bit rate 3 = AODV high bit rate
  8. 8. Conclusion <ul><li>Congestion-controlled Multiple-source Multimedia Adaptation Scheme (CMMAS) </li></ul><ul><ul><li>Multiple-source multimedia streaming. </li></ul></ul><ul><ul><li>Coarse-grained bandwidth allocation based on TFRC. </li></ul></ul><ul><ul><li>Fine-grained multimedia adaptation within allocated bandwidth. </li></ul></ul><ul><li>Future plans </li></ul><ul><ul><li>Algorithm enhancement for sender heterogeneity </li></ul></ul><ul><ul><li>Sender-sender interaction implementation </li></ul></ul>
  9. 9. Questions??? THANK YOU Adrian Kwizera [email_address] Seung Bum Lee [email_address] Gabriel-Miro Muntean [email_address]

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