Patent Number:
7,822,029
Title:
Method for routing packets in ad-hoc networks with partial channel state information
Abstract:
A method routs a packet from a source node, via relay nodes, to a destination node. The nodes are connected by wireless links x. A channel power gain .gamma. is measured for each link x. Resource trade-off curves y=f(x) are constructed for each link x from the channel power gains .gamma., wherein y represents a set of resources. A hyperbolic upper bound h/x+c is fitted to each resource curve, such that h/x+c.gtoreq.f(x), wherein h is a scale factor, and c is an offset. A route with an optimal resource allocation is selected according to the hyperbolic upper bounds. Then, the packet is transmitted from the source node to the destination node using the route.
Inventors:
Brand; Matthew (Newton, MA), Molisch; Andreas F. (Pasadena, CA)
Assignee:
Mitsubishi Electric Research Laboratories, Inc.
International Classification:
H04L 12/56 (20060101)
Expiration Date:
2018-10-26 0:00:00