Above a given bit-rate value, buffer losses are observed for the most critical UEs and become more and more frequent (with more terminals impacted) with increased bit-rates.
Let us hope that the extra bandwidth will be used to increase bit rates and resolution.
In light of the requirement for both increasing bit rates and reduced energy consumption in mobile access networks, the introduction of sleep modes is a key element.
(e) Spectral Noise Shaping (SNS) (73 kbps) SNS block employed to improve encoding of highly tonal signals (Section 5.4) increases bit rates by bps (to transmit the binary decision about employment of SNS in each sub-band).
The benefit of Move is that it "breathes" correctly, lowering or increasing bit rates to match the best possible or expected playing environment.
Combined signals are further combined to form data streams of increasing bit-rate and voice-carrying capacity.
Region Of Interest (ROI) coding is a prominent feature of some image coding systems aimed to prioritize specific areas of the image through the construction of a codestream that, decoded at increasing bit-rates, recovers the ROI first and with higher quality than the rest of the image.
Figure 1 MDCT histograms for doubly compressed file with increasing bit-rate and simulated singly compressed file.
Several simulations are run for the purpose of performance evaluation, with increasing bit-rates being sent to all UEs.
To demonstrate that the idea is effective, an uncompressed audio track, 4 s long, has been MP3 compressed at several bit-rates in the set [64, 96, 128, 192] kbit/s, and then recompressed to 160 kbit/s, in such a way to obtain four doubly compressed versions, three with increasing bit-rate, and one with decreasing bit-rate.
