Admission control in a self aware network

A computer readable medium for non-transitory storing of a computer program that, upon execution, with cause the computer to perform a method of admission control in a Self Aware Network, the network carrying at least one existing user, each said existing user specifying at least one Quality of Service metric expressed as a Quality of Service constraint, the method comprising:

• receiving a user request for admission of a connection from a source node to a destination node in the network carrying a traffic rate, the request specifying at least one Quality of Service metric expressed as a Quality of Service constraint;
• the source node then performing:
• finding a set of paths between the source node and the destination node;
• creating link Quality of Service matrices for all links in the set of paths and the Quality of Service metrics of the at least one existing user and the user making the request;
• sending probe traffic over the network;
• using the probe traffic to obtain a Quality of Service matrix for the links and for the Quality of Service metrics of the at least one existing user and the Quality of Service metric of the user making the request;
• computing estimated link Quality of Service matrices for the links and for the Quality of Service metrics of the at least one existing user;
• computing path Quality of Service matrices for the Quality of Service metrics of the at least one existing user and the Quality of Service metric of the user making the request, based on the estimated link Quality of Service matrices, and
• rejecting or accepting the user request based on a computed path Quality of Service matrices.

A computer device comprising:

• a processor and memory configured to execute a method of admission control in a Self Aware Network, the network carrying at least one existing user, each said existing user specifying at least one Quality of Service metric expressed as a Quality of Service constraint, the method comprising:
• receiving a user request for admission of a connection from a source node to a destination node in the network carrying a traffic rate, the request specifying at least one Quality of Service metric expressed as a Quality of Service constraint;
• the source node then performing:
• finding a set of paths between the source node and the destination node;
• creating link Quality of Service matrices for all links in the set of paths and the Quality of Service metrics of the at least one existing user and the user making the request;
• sending probe traffic over the network;
• using the probe traffic to obtain a Quality of Service matrix for the links and for the Quality of Service metrics of the at least one existing user and the Quality of Service metric of the user making the request;
• computing estimated link Quality of Service matrices for the links and for the Quality of Service metrics of the at least one existing user;
• computing path Quality of Service matrices for the Quality of Service metrics of the at least one existing user and the Quality of Service metric of the user making the request, based on the estimated link Quality of Service matrices, and
• rejecting or accepting the user request based on the-a computed path Quality of Service matrices.