Tarbiat Modares University The Modares Journal of Electrical Engineering 2228-527X 9 1 2009 01 01 Delay Control Using Media Sensitivity in Multimedia Environments کنترل تأخیر در محیط‌های چند‌رسانه‌ای با استفاده از فاکتور حساسیت 148 138 12798 EN محمدرضا احمدی مرکز تحقیقات مخابرات ایران Journal Article Increasing real time services in multimedia environments has initiated a new phenomenon in data communication. This paper analyzes delay in multimedia environments focusing on multi-point to point communication [1]. We separate the playtime delay in a point-to-point transmission and propose an optimization scenario for each part. It is proved that sum of the normalized path delay for point-to-point connections is invariant and based on this property, the playtime for delay-sensitive media has been minimized. We have shown that in transmission media, priority queuing is an effective solution where in the receiver side, waiting time for playtime scheduling and queuing discipline are two main factors. It is shown that there is a compromise between packet loss and packet departure time in the receiver side where the acceptable packet loss can adjust the playtime delay adaptively. Theoretical analysis for priority assignment, queuing technique and performance evaluation in different classes of queuing with different playtime scheduling are given. https://mjee.modares.ac.ir/article_12798_3b2f3a493d32e9aca1df90ef35b587e7.pdf