Decentralized and dynamic route selection in cooperative relay networks
AssigneeMitsubishi Electric Research Laboratories, Inc.
InventorsNeelesh B. Mehta, Ritesh Madan, Andreas F. Molisch, Jinyun Zhang
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Abstract
A method selects an optimal route in a cooperative relay network including a set of nodes. For each node in a set of nodes of a cooperative relay network, dynamically varying channel state information is determined. A transmission policy based on the dynamically-varying channel state information is selected, in which the transmission policy includes selected nodes forming an optimal route, a transmission mode for each selected node, and a transmission power for each selected node.
Claims19
A method for selecting an optimal route in a cooperative relay network including a set of nodes, comprising the steps of:
- determining, at each node in a set of nodes of a cooperative relay network, dynamically varying channel state information;
- and
- selecting dynamically a transmission policy based on the dynamically varying channel state information, in which the transmission policy includes selected nodes forming an optimal route, a transmission mode for each selected node, and a transmission power for each selected node.
A method for selecting an optimal route in a cooperative relay network including a set of nodes, comprising the steps of:
- representing a set of nodes of a cooperative relay network by a graph, in which an edge in the graph represents a channel between two adjacent nodes;
- constructing a super-graph from the graph, in which an edge in the super-graph represents a virtual channel between two nodes are separated by at most h hops in the graph;
- constructing, for each node in the super-graph, a sub-graph of a subset of the nodes that are separated by at most h hops from the node and the edges that connect the nodes;
- determining for every unique pair of nodes in the sub-graph an optimal sub-route;
- and
- selecting the optimal route based on the optimal sub-routes.
Dependencies are inferred from the claim text.