Decision-theoretic satellite communications systems
First Claim
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1. A communications system, comprising:
- a ground node receiving calls; and
a control unit maximizing a communication system expected utility function and allocating communication resources to received calls based on the communication system expected utility function, the control unit including;
means for identifying a plurality of possible communication resource allocation decisions for each call; and
means for determining an optimal communication resource allocation by maximizing an expected utility function of the communication system to select one of said decisions, including;
means for determining the probability of achieving a given communication system performance state based on an identified decision and a communication system context, the communications system context based on at least one of a present network state and a past network state; and
means for determining the utility of achieving said given communication system performance state based on said identified decision.
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Abstract
A communications system allocates communication bandwidth to calls in such a manner for optimizing network system performance. The system uses knowledge about the state of the past and present network demand, and network resources. Predictions of future demand and future network resources are used to calculate future network performance. Allocation decisions are chosen based on network performance calculations and probabilities of achieving future network states.
55 Citations
31 Claims
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1. A communications system, comprising:
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a ground node receiving calls; and a control unit maximizing a communication system expected utility function and allocating communication resources to received calls based on the communication system expected utility function, the control unit including; means for identifying a plurality of possible communication resource allocation decisions for each call; and means for determining an optimal communication resource allocation by maximizing an expected utility function of the communication system to select one of said decisions, including; means for determining the probability of achieving a given communication system performance state based on an identified decision and a communication system context, the communications system context based on at least one of a present network state and a past network state; and means for determining the utility of achieving said given communication system performance state based on said identified decision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for allocating communication resources, the method comprising the steps of:
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receiving call requests from a plurality of communication units; identifying a plurality of possible communication resource allocation decisions for each call request, each communication resource allocation decision including a communication bandwidth; and determining an optimal communication resource allocation by maximizing an expected utility function of the communications system to select one of said decisions, including the steps of; determining the probability of achieving a given communication system performance state based on an identified decision and a communication system context, the communications system context based on at least one of a present network state and a past network state; and determining the utility of achieving said given communication system performance state based on said identified decision. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification