CHAPTER 8 CONCLUSION AND FUTURE ENHANCEMENTS

Transcription

1 185 CHAPTER 8 CONCLUSION AND FUTURE ENHANCEMENTS Table of Contents Chapter - 8.CONCLUSION AND FUTURE ENHANCEMENTS S. No. Name of the Sub-Title Page No. 8.1 Conclusion Future Enhancements 188

2 CONCLUSION AND FUTURE ENHANCEMENTS 8.1 Conclusion The chaining mechanism decreases the server load, which is measured the system resources like bandwidth and buffer. The drawback of these existing approaches not efficiently utilized the system resources like bandwidth and buffer. Therefore the proposed V-Chaining mechanism will enhances the performance of chaining mechanism. The parameters are considered here is bandwidth; buffer is measured at the server and peer load. Consequently associate analytical model is derived for propose mechanism for various performance metrics is compared and analyzed. The results are fairer performance in the proposed V-Chaining mechanism once it's simulated. The simulation results compared with existing chaining approaches shows that improved utilization of bandwidth and buffer within the server as well as peers as and when the number of peers will increase. Once the resources which are efficiently utilized among the peers using our V-Chaining mechanism, we evaluated the QoS metrics in peer to peer VoD system. The quality of service metrics measured as video packet delay and jitter. The disservice of existing chaining strategies is end to end delay and jitter is more regular while transmitting the video streams around the peers. Along these lines delay and jitter assessment is viable in propose V-Chaining approach. The disservice of existing chaining strategies is end to end delay and jitter is more regular while transmitting the video streams around the

3 187 peers. Along these lines delay and jitter assessment is viable in propose V-Chaining approach. The variety in arrival of streams of video to the peers postponements make in each one peer that is sender to recipient independently assessed. Thus the proposed V- Chaining system chooses the best optimal way in chaining the video streams between the peers which improves the execution of n terms of QoS and ostensible jitter contrasted and existing strategies. Conjointly through simulation completely diverse execution measurements like 'normal arrival of demands; normal solicitations of peers served and rejected' in the framework assessed and analyzed. Conclusively, simulation results shows quality of video streaming enhances in proposed scheme than existing mechanisms. After evaluation of QoS metrics on video streaming using our V- Chaining mechanism, we observed in P2P VoD system, peers chaining among peers are frequently fails in transmitting streams while chaining. In the existing chaining approaches of the VoD system the chaining among the peers may fail due to stringent bandwidth and buffer, hardware, software and peer failure. To overcome some of these problems we analyzed fault tolerance in P2P VoD system is model on Continuous Time Markov Chain model (CTMC). In this work, we proposed V-Chaining mechanism on CTMC model. To model our proposed mechanism a birth -death process is used. In this model we also show that system reaches the steady state as increases number of chain and there streaming of video streams will be smooth among the peers. We simulated the following parameters that are the average

4 188 load on the system, normal peers and recovered peers, requests arrival and requests failure of peers, the server bandwidth,load on the server, the peer bandwidth and buffer of the system using V-Chaining mechanism. The simulation results are evaluated and compared with existing mechanisms. 8.2 Future Enhancements Further enhance of this work in the VCR functionality like pause, forward, rewind, play operations may implement on the peers while chaining may fails in chaining among the peers. In P2P-VoD system further enhance the Security, include several methods to authenticate video streams contents which is essential. The authentication can be implemented depends on digital or signature message digest algorithms. The chunk level or stream level are the 2 levels of video streams authentication. When chunk is formed and is buffered into the peer hard disc this is called as chunk level video streaming. In case of stream level is superior expecting streaming of video quality is good. The weaker form of stream level authentication is PPLive VoD current version implemented even at similar key used for chunk level authentication at the same time will control. Further enhance on the mobile phones P2P video streaming system. The live stream from phone camera originates and then broadcast within the network in P2P fashion to several alternative mobile phones or alternative devices. Conjointly extending the P2P streaming to handheld devices, Future will permit much more use

5 189 cases than with laptops and PCs exclusively and extensively increase the coverage and dynamics in consumption of streams and content creation.