Traffic mix is a
traffic model in
telecommunication engineering
Telecommunications Engineering is a subfield of electrical engineering which seeks to design and devise systems of communication at a distance. The work ranges from basic circuit design to strategic mass developments. A telecommunication engine ...
and
teletraffic theory.
Definitions
A traffic mix is a modelisation of user behaviour. In telecommunications, user behaviour activities may be described by a number of systems, ranging from simple to complex. For example, for
plain old telephone service
Plain old telephone service (POTS), or plain ordinary telephone system, is a retronym for voice-grade telephone service employing analog signal transmission over copper loops. POTS was the standard service offering from telephone companies from ...
(POTS), a sequence of connection requests to an exchange can be modelled by fitting negative exponential distributions to the average time between requests and the average duration of a connection. This in turn can be used to work out the utilisation of the line for the purposes of network planning and dimensioning.
Objectives
Traffic mix has two goals:
* Network links dimensioning
* Network equipment dimensioning
Both these functions are extremely important to network operators. If insufficient capability is deployed at a node (for example, if a
backbone router has 1 gigabit/sec of switching capacity and more than this is offered) then the risk of equipment failure increases, and customers experience poor service. However, if the network is overprovisioned the cost in equipment can be high. Most providers therefore seek to maximise the effect of their spending by maintaining an unused overhead capacity for growth, and expanding key nodes to relieve problem areas. Identification of these areas is accomplished by network dimensioning.
Traffic mix type
Telephony traffic mix
* Call attempts per day
* Call holding time
* Mean holding time
Mobile telephony traffic mix
* Call attempts
* Call holding time
* Mean holding time
* Mean number of SMS send
* Mean number of SMS received
* User mobility
Internet traffic mix
*
UL/
DL acknowledged Kbs
*
Packet
Packet may refer to:
* A small container or pouch
** Packet (container), a small single use container
** Cigarette packet
** Sugar packet
* Network packet, a formatted unit of data carried by a packet-mode computer network
* Packet radio, a form ...
Data Channel allocation successes
* User
throughput
Network throughput (or just throughput, when in context) refers to the rate of message delivery over a communication channel, such as Ethernet or packet radio, in a communication network. The data that these messages contain may be delivered ov ...
* Session/Packet interarrival time/Latency
See also
*
A. K. Erlang
Agner Krarup Erlang (1 January 1878 – 3 February 1929) was a Danish mathematician, statistician and engineer, who invented the fields of traffic engineering and queueing theory.
By the time of his relatively early death at the age of 51, Er ...
*
Call center
A call centre ( Commonwealth spelling) or call center ( American spelling; see spelling differences) is a managed capability that can be centralised or remote that is used for receiving or transmitting a large volume of enquiries by telephone ...
*
Engset calculation In queueing theory, the Engset formula is used to determine the blocking probability of an M/M/c/c/N queue (in Kendall's notation).
The formula is named after its developer, T. O. Engset.
Example application
Consider a fleet of c vehicles and N ...
*
Erlang distribution
The Erlang distribution is a two-parameter family of continuous probability distributions with support x \in exponential distribution">exponential variables with mean 1/\lambda each. Equivalently, it is the distribution of the time until the '' ...
*
Poisson distribution
In probability theory and statistics, the Poisson distribution is a discrete probability distribution that expresses the probability of a given number of events occurring in a fixed interval of time or space if these events occur with a known ...
External links
Competitive ISP - Scientific treatment of internet Traffic
Teletraffic
Telecommunications engineering
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