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Node Selection and Two-Hop Power Allocation in Multi-Source Cooperative Mesh Networks
 

Summary: Node Selection and Two-Hop Power Allocation in
Multi-Source Cooperative Mesh Networks
Kianoush Hosseini and Raviraj Adve
The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto
10 King's College Road, Toronto, ON M5S 3G4, Canada
Email: {kianoush, rsadve}@comm.utoronto.ca
Abstract--This paper considers relay selection and power
allocation in a two-hop multi-source multi-destination mesh
network wherein fixed relay nodes use the decode-and-forward
protocol. The jointly optimal solution is of exponential complex-
ity. Introducing a set of time-sharing factors into the objective
function, and relaxing the selection constraint, provides an upper
bound to the original problem. We also provide a heuristic
method to impose selection on each source-destination pair.
Second, we propose a decentralized selection scheme in which
each individual source-destination pair chooses its best relay
independently followed by power allocation. Simulation results
reveals that the performance of the decentralized selection scheme
almost exactly tracks that of an upper bound for both max sum
rate as well as max min rate metrics. The key difference from

  

Source: Adve, Raviraj - Department of Electrical and Computer Engineering, University of Toronto

 

Collections: Engineering