Exact(5)
Without rate adaptation, the rate of the requested segment may exceed the transmission rate that the wireless channel can support.
Using the metadata contained in MPD (Media Presentation Description), the unique URL of the requested segment can be constructed.
To keep the continuous playback, the next requested segment should be transmitted to the client during the time we estimated above.
If (P)'s request should be directed to nodes inside its ISP but none of these nodes has the requested segment, the request is directed to nodes outside the ISP.
With the time when to send the segment request known, how to select the requested segment to adapt to the time-varying channel states becomes a crucial problem to be solved.
Similar(55)
Formally, the simulator computes the amount of requested segments intercepted by the cache (r_c), and the amount of segments that resulted in hit (h_c), i.e, the amount of segments that were served by the cache over a simulation time.
Conventional strategies usually request segment with fixed time interval [1] or only consider the status of client buffer [6].
If no MS that holds the segment is available, it will request the segment via 3G/4G.
When AR is not used at the client, the clients will send the segment request with a fixed time interval and the rate adaption scheme is to request the segment whose rate is the most closest to the estimated transmission rate.
All segments are downloaded at a constant throughput, calculated as the size of all segments requested during the section divided by the duration of the session.
But transmitting all the video packets may lead to requesting the segment with low bit rate which will also degrade the value of the average PSNR.
Write better and faster with AI suggestions while staying true to your unique style.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com