无人值守网络协同通信资源分配方法

Cooperative Communication Resource Allocation Method of Unattended Operation Network

无人值守网络协同通信资源分配在通信领域拥有极为广阔的应用空间。无人值守网络协同通信资源分配通常都是以通信效率最高和资源利用率最高为目标进行资源分配的,没有考虑无人值守网络特有的通信连续性,传统的资源分配方法的目标函数没有考虑后续通信过程中的需求。导致通信资源在长时间段内的利用率降低,降低了有人/无人值守网络协同通信的效率。为了避免上述传统算法的弊端,提出采用信息素搜索算法的无人值守网络协同通信资源分配方法。对协同通信系统中各个资源节点的信息素进行初始化处理,获取通信资源分配任务集合,得到任务执行时间,选取通信信道。根据信息素浓度对所有的信息素进行及时的更新,搜索最优通信资源分配的最优信道。实验结果表明,利用改进算法进行无人值守网络协同通信资源分配,可以有效缩短协同通信时间,提高资源利用率。

Cooperative communication resources allocation of unattended network is widely used in the field of communications. Resource allocation of unattended network collaborative communication usually allocates resources for the purpose of getting the highest communication efficiency and resource utilization rate, however, the continuity which is special for unattended network communication is not taken into account. The objective function in traditional resource allocation methods does not consider the follow - up demand in the process of communication. As a result that communication resource utilization decrease in long period of time, and the efficiency of someone/unattended network cooperative communication is reduced as well. In order to avoid those disadvantages in traditional algorithm, a new allocation method of unattended cooperative communication network resources was proposed on the basis of pheromone search algorithm. Each resource node in collaborative communication system was initialized, and then the communication resource allocation task set was obtained as well as the task execution time. Finally, the communication channel was chosen. According to the pheromone concentration, all the pheromones were updated timely. The optimal channel of communication for the optimal resource allocation was searched then. The experimental results show that through this improved algorithm for resources allocation of unattended cooperative communication network, cooperative communication time can be effectively shorten and the utilization rate of resources can be improved.