1. It is obvious that 67-80% of wireless channel bandwidth is wasted for headers transmission and only the 20-33% of bandwidth is used for the transmission of real information for the final users.

2. Limited by the memory and channel bandwidth, the digital image signal must be compressed.

3. For the satellite channel bandwidth limited, we have to carry highly efficient data compression to transmit images effectively.

4. And limited by the channel bandwidth, the transmitted video stream is usually in low bitrate and low spatial resolution.

5. Considering limited channel bandwidth and real-time processing requirement, it is necessary to apply efficient video source code with high compression ratio.

6. With the establishment of video compression encoding standard, the contradiction between video communication and channel bandwidth is released greatly.

7. The information explosion has made the transmission rate and channel bandwidth become bottlenecks in the development of multimedia technology.

8. Local Ethernet is used widely so that the data transmission channel bandwidth is ensured.

9. Picture quality assessment on the resulting broadcast images is an essential task, to ensure that the best use is being made of the available channel bandwidth.

10. In radio communication system, because of multipath effect and the finity of channel bandwidth and incomplete channel, intersymbol interference (ISI) is inescapability during the data transfer.

11. The invention utilizes the relevancy among the video picture frames to dynamically adjust the channel bandwidth and can reduce prediction error and allocate channel more correctly.

12. According to the analysis, a new reliable transmission mechanism is proposed, which outperforms the original scheme in term of effective usage of the channel bandwidth.

13. In this environment, some hosts that fail to adhere to the MAC protocol may obtain an unfair share of the channel bandwidth.

14. Using band-pass filter can make the signal bandwidth less than the channel bandwidth, so voice signal will more matching channel.

15. The space image data is in large quantities, and the channel bandwidth resources are limited, therefore the space image data compression algorithm has become hot recently.

16. Minimizing the busyness of the desktop makes KDE easier on the channel bandwidth.

17. In digital microwave communication, inter-symbol interference (ISI) is inevitable because of multi-path fading, finiteness of channel bandwidth and faultiness of channel.