Traffic Mix
Encyclopedia
Traffic mix is a traffic model in telecommunication engineering
and teletraffic theory.
(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.
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.
Teletraffic engineering
Telecommunications traffic engineering, teletraffic engineering, or traffic engineering is the application of traffic engineering theory to telecommunications...
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 servicePlain old telephone service
Plain old telephone service is the voice-grade telephone service that remains the basic form of residential and small business service connection to the telephone network in many parts of the world....
(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.
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
- ULUplinkA telecommunications link is generally one of several types of information transmission paths such as those provided by communication satellites to connect two points on earth.-Uplink:...
/DL acknowledged Kbs - Packet Data Channel allocation successes
- User throughputThroughputIn communication networks, such as Ethernet or packet radio, throughput or network throughput is the average rate of successful message delivery over a communication channel. This data may be delivered over a physical or logical link, or pass through a certain network node...
- Session/Packet interarrival time/Latency
See also
- A. K. ErlangAgner Krarup ErlangAgner Krarup Erlang was a Danish mathematician, statistician and engineer, who invented the fields of traffic engineering and queueing theory....
- Call centerCall centreA call centre or call center is a centralised office used for the purpose of receiving and transmitting a large volume of requests by telephone. A call centre is operated by a company to administer incoming product support or information inquiries from consumers. Outgoing calls for telemarketing,...
- Engset calculation
- Erlang distribution
- Poisson distributionPoisson distributionIn 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 and/or space if these events occur with a known average rate and independently of the time since...