ID |
原文 |
译文 |
47686 |
针对贪婪周边无状态路由(GPSR,greedy perimeter stateless routing)协议在航空自组网中存在难以适应高动态网络环境、易导致网络拥塞等问题, |
In aeronautical ad hoc networks, the traditional greedy perimeter stateless routing (GPSR) protocol poses sev-eral issues. For example, it is difficult to adapt to the highly-dynamic network environment, and it is prone to cause con-gestions. |
47687 |
提出一种基于 TTE(time to enter the communication range of thedestination)的多路径流量分配负载均衡地理路由(LBGR,load balancing geographic routing)协议。 |
In order to address the problems, a TTE (time to enter the communication range of the destination)-based loadbalancing geographic routing (LBGR) protocol was presented. |
47688 |
该协议将 TTE 作为路由决策依据,具体包括分组转发策略、多路径流量分配策略和局部最优化处理策略等 3 种机制。 |
Taking TTE as the main routing decision metrics, this pro-tocol included the TTE-based packet forwarding scheme, multi-path traffic allocation scheme, and local optimum han-dling scheme. |
47689 |
进一步采用排队论对多路径流量分配策略进行了建模分析,得出了平均队长、平均等待队长、平均等待时间等性能指标的数学表达式。 |
Furthermore, the multi-path traffic allocation scheme employing the queueing theory was modeled, and themathematical expressions of some metrics were derived, such as the mean queue size, mean number of packets waiting inthe queue, and mean waiting time. |
47690 |
最后利用 OMNeT++仿真平台对 LBGR 协议的性能进行了仿真验证,结果表明相比 GPSR 等协议,LBGR 协议在分组传输成功率和端到端时延方面有较大幅度的提升,能够有效适应高动态航空环境。 |
Finally, the analysis of the OMNeT++ simulations shows LBGR protocol has advan-tages over GPSR and some other protocols in terms of the packet delivery ratio and end-to-end delay, and is more suitablefor the highly-dynamic aeronautical environment. |
47691 |
为了有效应对潜在网络威胁,通过合理利用资源达到最大化提升当前环境安全态势的目的,研究了有限资源的最优分配方案。 |
In order to deal with the potential cyber-threat and improve the security situation by using limited resourceproperly, the optimal allocation of resource focused on cyber security situation. |
47692 |
网络态势的整体性特点使针对某一指标的改善可能会间接影响其他指标,并且投入力度不同,影响程度也有所差异。 |
The coherence of network situation leadto the fact that the enhancement of certain item may also affect some other items, and different amount of investment mayalso result in different degree of impact. |
47693 |
针对上述特性,将问题抽象成多选项二次联合背包模型, |
Therefore, the problem was extracted into the multiple-choice quadratic knapsack problem. |
47694 |
通过二次背包特性表示态势评估指标项之间的相互影响,通过多选项背包特性来表示单个指标项的多种投入可能。 |
The characteristics of quadratic knapsack problem was used to model the interactions among the situation indi-cator items, meanwhile used the multiple choice knapsack problem to model the multiple investment choice for each item. |
47695 |
最后对其做半定规划松弛,采用分支定界法对问题进行求解。 |
A branch and bound algorithm was conducted by using the semi-definite relaxation. |