�1���� Introduction
�2���� The necessity of HF skywave frequency cooperation
������ 2.1 �����External diseconomy in HF electromagnetic environment
������� 2.2���� Necessity of the cooperation among HF radio systems
�3���� Cooperative competition model based on hypergraph
�4���� Discussion on the cooperative competition algorithms and protocols
������� 4.1���� The relationship between the executing speed and the usability
of the algorithms
������� 4.2���� The relationship of the overhead and usability of the protocols
�5���� Algorithm and protocol design
������ �5.1���� The cooperative competition scheme
������� 5.2���� Cooperative competition scheme integration with adaptive HF
radio systems
����������������� 5.2.1���� Current adaptive HF systems
���� �������������5.2.2���� Candidate integration with ALE
������� 5.3���� Performance evaluation
�6���� Summary
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