A CROSS - LAYER APPROACH FOR TRANSMISSION OF MPEG - 4 VIDEO OVER WIRELESS MESH NETWORKS
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 4, Issue 6
Abstract
Video streaming over wireless LANs in real time is very challenging due to the time - varying wireless channel characteristics. While transmitting MPEG - 4 video over Wireless Mesh Networks many parameters such as delay, latency needs to be considered. For such time critical application a new Cross layer approach is proposed. A C ross - layer approach provides freedom to exchange information among different layers to enhan ce the video quality. Parameters can be exchanged between Application, Network and Data link layer to improve quality of service. At the application layer the information about the video frames can be shared with the network layer so that appropriate routi ng metrics can be chosen. Commonly routing protocol uses hop count as routing metrics to find out the best route. The modified protocol uses Expected Transmission Count (ETX) metric along with hop count to select best QoS route. The approach improves the p erformance metrics such as throughput, packet delivery ratio, end to end delay and reduces total video frame loss.
Authors and Affiliations
Manisha , Gaikwad
Keywords
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- EP ID EP100651
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