The data stream characteristics in transmission are associated with any audio and video data transfer. Also the info stream characteristics are influenced by the compression during the information transfer. Its characteristics apply for distributed furthermore as local environment. Hence the data stream characteristics can be discussed on the basic of three given factors or properties .
1.According to the time intervals between consecutive packets.
2.According to the variation of the amount between consecutive packets.
3.According to the continuity or connection between consecutive packets.
1.According to time intervals between consecutive packets:
On the basic of this factor we find out three properties they are:a) Strongly periodic data stream:
If time intervals are of the identical length between two consecutive t packets that's a continuing, then the stream is named strongly periodic and within the ideal case the jitter has the worth zero. For eg: PCM coded speech in traditional telephone switching.b) Weakly periodic data stream:
If time intervals between two consecutive packets is not constant but are of periodic nature with finite period then the data stream is called weakly periodic.c) A-periodic data stream:
If the sequence of time intervals is neither strongly nor weakly periodic, instead the time period or time gap various between packets to packets during transmission then such data stream is called A-periodic data stream.2.According to variation of consecutive packet amounts:
On the basic of these factors there are three types of data stream:a) Strongly regular data stream:
If the number of information stays constant during the life time of a knowledge stream, this feature is specially found in uncompressed digital data transmission, as an example audio stream of CD, video stream of camera in uncompressed form.b) Weakley regular data stream:
If the amount of data stream varies periodically with time and not shows the behaviors of strongly regular data stream then it is called Weakley regular data stream, For example compressed video stream.c) Irregular data stream:
If the number of information is neither constant nor changes in keeping with a periodic function, then the information streams are called irregular data stream. Transmission and processing of this category data stream is complicated. Since data stream includes a variable (bit) rate after applying compression methods.3.According to continuity or connection between consecutive packets.:
On the basic of this factor their can be also 2 types or characters:a) Continuous data stream:
If consecutive packets are directly transmitted one after another without any time gap then such data streams are called continuous data stream, For example audio data use for B channel of Isdn with transmission rate for 64 kbps.b) Unconnected data stream:
A data stream with gaps between information units is named and unconnected data stream. The transmission of a connected data stream through a channel with the next capacity treads gaps between individual packets, as an example the information stream coded with JPEG method with 1.2 mbps on a FDDI network.