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Issue:
Huffman Key Distribution Trees Based on Cognitive Radio Network
Author(s):
Lin Geng
,
Qiao Zhanxi
,
Xue Nan
Pages:
68
-
71
Year:
2010
Issue:
12
Journal:
Telecommunications Science
Keyword:
认知无线电网络
;
组播
;
密钥管理
;
Huffman树
;
Abstract:
针对认知无线电网络可用信道动态变化和网络中各认知节点可用信道不尽相同的特点,在应用组播技术的认知无线电网络中,以认知节点没有可用信道而退出组播组的情况为依据,提出以非可用信道数作为叶节点的权值,构造适用于认知无线电网络组播环境的密钥分发树.非可用信道数多的节点位于树的上部,非可用信道数少的节点位于树的下部.由证明可知,其具有最小的密钥存储量和平均密钥更新消息包数.
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