Journal
IEEE COMMUNICATIONS LETTERS
Volume 15, Issue 8, Pages 845-847Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2011.061611.110963
Keywords
Cognitive radio; convex optimization; OFDM; resource allocation
Categories
Funding
- National Science Foundation of China [61021062]
- Jiangsu Science Foundation [BK2008018, SBK201140016]
- Fundamental Research Funds for the Central Universities [1095021029]
Ask authors/readers for more resources
A fast algorithm is proposed to tackle the optimal power allocation problem for orthogonal frequency division multiplexing (OFDM)-based cognitive radio networks, where the key is to replace the Newton step with O(N-3) complexity in the barrier method by a procedure with approximate linear complexity developed based on the structure of the optimization problem. Simulation results validate that our method can always work out the optimal solution, with complexity even lower than heuristic methods that can only produce suboptimal solutions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available