Ad Hoc网络能量意识组密钥更新方案EAwLKHT  

EAwLKHT:energy-aware multicast re-keying scheme in Ad Hoc networks

作　　者：靳辉[1] 刘洛琨[1] 

机构地区：[1]解放军信息工程大学信息工程学院通信工程系,河南郑州450002

出　　处：《计算机工程与设计》2008年第11期2715-2717,2744,共4页Computer Engineering and Design

基　　金：国防预研基金项目(110010304)

摘　　要：为了降低AdHoc网络安全组播中组密钥更新过程的能量消耗,根据跨层设计思想,提出了一种基于能量意识逻辑密钥层次树(EAwLKHT)模型的组密钥更新算法。利用网络层、物理层反馈信息,对逻辑密钥层次树LKHT上成员节点的顺序进行调整,生成EAwLKHT;EAwLKHT通过合理分配中介密钥,提高组密钥更新过程中的信息传输效率,减少不必要的能量消耗,从而优化网络性能。并通过仿真实验对该方案的可行性进行了评估。In order to minimize the energy required for the re-keying process of secure multicast in Ad Hoc networks, an energy-aware multicast re-keying scheme based on EAwLKHT （energy-aware logical key hierarchy tree） is proposed, according to cross-layer design philosophy. Using the information originated by MAC and networking layers, sort group members in LKHT to construct an EAwLKHT. The EAwLKHT enhanced the energy-efficiency of communication in multicast re-keying process, reduced the unnecessary energy con- sumption, and optimized network＇s performance. The feasibility ofenergy-aware multicast re-keying scheme is estimated by simulation.

关 键 词：密钥更新 能量 自组网 组播 跨层设计 组密钥管理 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]