دانلود مقاله ISI انگلیسی شماره 52356
عنوان فارسی مقاله

انتقال فیلم مقیاس پذیر بیش از شبکه های بی سیم چند پرشه با کیفیت افزایش یافته تجربه با استفاده از هوش ازدحامی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
52356 2012 15 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Scalable video transmission over multi-hop wireless networks with enhanced quality of experience using swarm intelligence ☆
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Signal Processing: Image Communication, Volume 27, Issue 7, August 2012, Pages 722–736

کلمات کلیدی
کیفیت تجربه؛ هوش ازدحامی - بهینه سازی ازدحام ذرات ؛ تخصیص پهنای باند؛ ویدیو مقیاس پذیر
پیش نمایش مقاله
پیش نمایش مقاله انتقال فیلم مقیاس پذیر بیش از شبکه های بی سیم چند پرشه با کیفیت افزایش یافته تجربه با استفاده از هوش ازدحامی

چکیده انگلیسی

In this work, we take the advantages of the particle swarm optimization method which belongs to the family of swarm intelligence algorithms to find improved solutions for delivering digital video content with enhanced quality of experience to the end users over error-prone multi-hop wireless networks. In video transmission over such wireless networks, many network-based (packet loss, delay, etc.) and source-based (encoding quantization level, etc.) parameters can impair the perceived video quality. The main contributions of the proposed work are twofold. At first, an optimal bandwidth allocation framework is being developed based on the particle swarm optimization algorithm in which by incorporating an accurate video quality metric, the total weighted quality of experience of some competing video sources is being optimized. Secondly, these optimal rates have been used for differentiated quality of experience enforcement between multiple competing scalable video sources. The resulting optimal rates can be used as rate-feedbacks for on-line rate adaptation of a moderate scalable video encoder such as H.264/MPEG4 AVC. The aforementioned weight parameters are selected based on the importance of each video sequence's quality and can be associated with some previous service level agreement based prices. Some guidelines about the practical implementation of the proposed algorithm are given. Numerical analysis has been performed to validate the theoretical results and to verify the claims.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.