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The same problem exists in a mobile ad hoc network . IEEE 802.11 uses 802.11 RTS/CTS acknowledgment and handshake packets to partly overcome the hidden node problem. RTS/CTS is not a complete solution and may decrease throughput even further, but adaptive acknowledgements from the base station can help too.
The minimum cost variant of the multi-commodity flow problem is a generalization of the minimum cost flow problem (in which there is merely one source and one sink ). Variants of the circulation problem are generalizations of all flow problems. That is, any flow problem can be viewed as a particular circulation problem.
CAMEL Phase 1 defined only very basic call control services, but introduced the concept of a CAMEL Basic call state model (BCSM) to the Intelligent Network (IN). Phase 1 gave the gsmSCF the ability to bar calls (release the call prior to connection), allow a call to continue unchanged, or to modify a limited number of call parameters before allowing it to continue.
Poisson bipolar network model is a type of stochastic geometry model based on the Poisson process and is an early example of a model for mobile ad hoc networks (MANETs), [2] [31] [44] which are a self-organizing wireless communication network in which mobile devices rely on no infrastructure (base stations or access points). In MANET models ...
WCDMA network architecture. The most common example of a cellular network is a mobile phone (cell phone) network. A mobile phone is a portable telephone which receives or makes calls through a cell site (base station) or transmitting tower. Radio waves are used to transfer signals to and from the cell phone.
However, measurements do not have the level of abstraction that makes traffic models useful. Traffic models can be used for hypothetical problem solving whereas traffic measurements only reflect current reality. In probabilistic terms, a traffic trace is a realization of a random process, whereas a traffic model is a random process. Thus ...
A packet generation model is a traffic generation model of the packet flows or data sources in a packet-switched network. For example, a web traffic model is a model of the data that is sent or received by a user's web-browser. These models are useful during the development of telecommunication technologies, in view to analyse the performance ...
Mobility models are basically classified as stochastic, detailed, Hybrid and Trace based Realistic models. [1] The stochastic models are based on random movements and the nodes are free to move in any direction. Example include Random waypoint model, Random walk and Random direction model. The detailed models are tailored for specific scenarios.