Abstract
In the Advanced communication systems, there will be a mixture of different traffic classes each having its own transmission rate characteristics and QOS (quality of service) requirements. In this paper, a QOS oriented optimal routing for wireless networks is proposed. The QOS parameters under the consideration are peak cell rate (PCR), sustained cell rate (SCR) and minimum cell rate (MCR). A call can impose different QOS requirement. A connection admission control (CAC) is required to decide whether a new connection requirement can be accepted or not. Call is admitted on a path if QOS characterization of the path meets the users QOS requirements QOS routing algorithms are based on a “link state approach” where each node maintains the state information on the entire topology. The different type of traffic that may be considered is voice, video and data. The basic idea is to pre- compute the paths in advance of call routing and find the optimize path on turn and which guarantees the calls QOS requirements.
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