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Network Aware Adaptive Multimedia Streaming in Mobile Cloud

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Abstract-This electronic record is a "live" template and already defines the components of your paper [title, text, heads, etc. ] in its style sheet. *CRITICAL: Do Not Use Icons, Special Personas, or Math in Paper Subject or Abstract. (Abstract)

Keywords-multimedia loading; mobile cloud; rating; QoS

I. Introduction

In modern times, mobility of processing devices has trapped the fascination and attention of several users all over the world. This has resulted in rapid progress in mobile technology and today users can certainly stream high quality multimedia system content like music and video on the go. A huge limitation to the, however, is the increased loss of quality that is incurred while moving the data. Because of the mobile character of the devices, differing signal strength can result in packet damage which ultimately brings about the reduction in the grade of service (QoS). Furthermore, the ram available in cellular devices is relatively low. To beat these constraints, data is stored and retrieved from a cloud.

Cloud processing addresses the QoS related issues and stability problems. The cloud has a big amount of storage space and computation electric power. Harnessing the energy of the cloud, you'll be able to service the needs of multiple mobile clients simultaneously. Making use of the cloud, you'll be able to allocate resources on demand and reallocate them dynamically. To be able to stream data from a cloud to a mobile device, a coding and decoding architecture like H264/SVC is necessary.

This architecture is an expansion of the H. 264/AVC. It means that the same quality of video that may be obtained using H. 264/MPEG-4 AVC design on the mobile device. It utilizes spatial scalability and temporal scalability. Matching to spatial scalability samples of high quality data can be forecasted of their decoded low quality counterparts. Using temporal scalability, the complete training video is modelled in such a way that the action is encoded as dependencies so that the picture for subsequent frames do not need to be encoded immediately.

In order to improve QoS, a technique called Bayesian-Gaussian method is employed to anticipate the bandwidth available to the mobile consumer. Once the bandwidth has been predicted, the info is encoded using xuggler transcoding algorithm. To finally stream the video recording, multipath routing protocols are used and ranks are given to each node to ensure that do not require have to wait indefinitely to be serviced. Third, , a comparison was created to the prevailing Bayesian technique proposed by Keshav[1].

II. Related Work

A. Mobile Cloud Compuing

A mobile cloud processing installation is one in which cellular devices outsource the computational electricity of the cloud. Data storage space and control are both performed outside the mobile device.

B. Loading Content

C. Role of Cache in Real Time Streaming

The role of the cache has been layed out by Wu et al[2]. Whenever a Real Time Loading Protocol (RTSP) get is sent by a machine, the cache storage is initially looked. In the event a cache pass up occurs, the original server services the question.

D. Increasing Quality of Service

A number of different techniques have been proposed to be able to ensure that the quality of service is maximized. One particular method shown by Wang and Dey[3] uses a technique that ranges the complexity of the content with respect to the network. Non-essential data in a arena are omitted to do this.

Lai et al[4] also have put forth an approach to data loading that will depend on the network. Prediction of the bandwidth is performed predicated on measured historical data. This can help avoid the wastage of bandwidth. It is also noted that the training video format to be used is usually to be chosen. That is performed with a Bayesian prediction module.

A third procedure is detailed by Thuy An et al[5]. Improvements are made to the Universal remote Desktop Protocol (RDP) in order to provide an overall better experience. The info separated into two categories and compressed. Lossless techniques are used to provide the best possible output.

E. Ranking

The various methods mentioned in the previous section discuss enhancing QoS regarding one user. However in simple fact, the cloud is all together reached by more than just one user. For this reason, it's important to ensure that there is some scheduling system set up that will keep an eye on the incoming demands so that no client request is required to hold back for too long without having to be serviced. Zhou et al[6] have proposed a novel approach in which all the competing mobile devices communicate to reduce congestion. This approach aims to reach a balance between minimizing the distortion in data and increasing the performance of the network all together.

III. Proposed Work

The proposed model has two major components: the mobile device and the cloud. The mobile device simply issues the request while the cloud provides a ranking, predicts the bandwidth and then channels the video accordingly. The architecture has been layed out in Fig. 1.

A. Mobile Device

The implementation of the mobile part of the architecture is rather straight forward. The user is provided with the choice to specify the location of the video in the cloud server. Then, the cache is check to see if the wanted data is obtainable. If it's, the info is transferred directly from the cache. This sort of cached data will be accessible offline as well. In the case where a cache pass up occurs, the server is reached to retrieve the info.

B. The Cloud

The videos that are to be stream are stored in another database. When a request is made, the video recording is streamed using the cloud. To carry out this, three major modules are implemented in the cloud. Inside the cloud, the users are ranked and then your bandwidth available is estimated. Finally, xuggler transcoding is employed to encode the info and the encoded data is transferred to the mobile device for taking a look at. Each operation is handled by way of a different component as show in Fig. 2.

C. Bandwidth Prediction

D. Xuggler Transcoding

E. Ranking

The ranking component can be used to ensure that QoS is better while transmitting the info. Once the bandwidth has been established, the data should be submitted such a way that the congestion in the network is as low as it can be. Ranking is done based on the user profile. The user profile contains a history of the user's downloads as well as the bandwidth assessed. Poorly doing nodes in the system are identified by using ranking system and they can be enhanced to enhance the overall working of the network as a whole.

F. Route Assignment

Once ranking is performed, multipath routing algorithms are being used to transfer the data. Link state governments are identified and the number of feasible pathways are preferred. Since several paths are selected, the probability of congestion and packet damage are reduced. The most suitable channel for transmission of the info can be dependant on handling the linear encoding equation

Min (1)

The procedure for choosing the right route is shown in Fig. 3.

IV. Output

The suggested system has been applied and its results have been weighed against that of the Keshav's Bayesian technique. It can be seen that the proposed system works better than Keshav's system consistently. Comparative studies have been performed based on bandwidth and optimum signal to noise percentage (PSNR).

A. Bandwidth

The bandwidth expected by the suggested system is a lot closer to the real measured bandwidth than that predicted by Keshav's system. The graph in Fig. 4 clearly shows the deviation of both techniques from the actual measured bandwidth.

B. PSNR and Little Rate

The quality of the video recording streamed can be identified predicated on the little rate as well as the PSNR. The proposed system performs much better than Keshav's system on both counts. This is shown in the graph in Fig. 5.

C. Training video Quality

The comparative review only shows us the way the system works in comparison to Keshav's existing system. To look for the effectiveness of the system, a detailed research of the training video quality was performed and has been summarized in Desk 1.


It is clear from the studies performed that the suggested Bayesian-Gaussian technique is effective at predicting the bandwidth available. The xuggler transcoding also means that quality is preserved. Thus, using a mobile cloud you'll be able to stream videos with out a reduction in quality and also without forcing an individual to hold back for the video to weight.

Acknowledgment (Proceeding 5)

The preferred spelling of the word "acknowledgment" in the us is lacking any "e" after the "g. " Steer clear of the stilted manifestation "one of us (R. B. G. ) thanks a lot. . . ". Instead, try "R. B. G. thanks a lot. . . ". Put sponsor acknowledgments in the unnumbered footnote on the first site.


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Unless there are six authors or more give all authors' labels; do not use "et al. ". Paperwork which may have not been released, even if they have been posted for publication, should be cited as "unpublished" [4]. Papers that contain been accepted for publication should be cited as "in press" [5]. Capitalize only the first phrase in a newspaper title, aside from proper nouns and element symbols.

For papers shared in translation publications, please supply the British citation first, accompanied by the initial foreign-language citation [6].

  1. G. Eason, B. Noble, and I. N. Sneddon, "On certain integrals of Lipschitz-Hankel type regarding products of Bessel functions, " Phil. Trans. Roy. Soc. London, vol. A247, pp. 529-551, Apr 1955. (sources)
  2. J. Clerk Maxwell, A Treatise on Electricity and Magnetism, 3rd ed. , vol. 2. Oxford: Clarendon, 1892, pp. 68-73.
  3. I. S. Jacobs and C. P. Bean, "Fine contaminants, thin movies and exchange anisotropy, " in Magnetism, vol. III, G. T. Rado and H. Suhl, Eds. NY: Academics, 1963, pp. 271-350.
  4. K. Elissa, "Title of paper if known, " unpublished.
  5. R. Nicole, "Name of paper with only first phrase capitalized, " J. Name Stand. Abbrev. , in press.
  6. Y. Yorozu, M. Hirano, K. Oka, and Y. Tagawa, "Electron spectroscopy studies on magneto-optical marketing and vinyl substrate user interface, " IEEE Transl. J. Magn. Japan, vol. 2, pp. 740-741, August 1987 [Digests 9th Total annual Conf. Magnetics Japan, p. 301, 1982].
  7. M. Young, The Tech Writer's Handbook. Mill Valley, CA: School Research, 1989.
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