基于业务特性和负载均衡的HWNs接入选择算法

HWNs Access Selection Algorithm Based on Service Characteristics and Load Balancing

针对传统的网络接入选择算法没有考虑不同用户的业务偏好和网络负载均衡性的问题,论文提出了一种基于业务特性和负载均衡的异构无线网络接入选择算法。算法综合考虑业务特性、用户偏好和网络属性,计算网络属性的主客观权重和用户偏好权重,根据效用值对候选网络进行排序,并引入网络负载控制机制为业务匹配网络。经仿真验证,该算法能够为业务精准匹配网络,相比于同类算法,在业务满意率性能方面提升了6.9%,且网络负载空闲度方差仅为同类较好算法的47.1%,网络整体负载均衡性能得到提升。该算法应用于海上船舶编队异构无线网络场景可有效提升船舶通信保障性能。

This paper proposes a heterogeneous wireless network access selection algorithm based on service characteristics and load balancing,which is to address the problem that traditional network access algorithms ignore the combat user systems preferences and network load.The algorithm comprehensively considers service characteristics,user preferences,and network attributes,calculates the subjective and objective weights of network properties and user preference weights,ranks candidate networks based on utility values,and introduces a network load control mechanism to match the network for services.Through simulation verification,the algorithm can accurately match networks for service.Compared with other algorithms,the performance of service satisfaction rate is improved by 6.9%,and the network load idleness variance is only 47.1%of the similar better algorithm.The overall network load balancing performance is improved.The algorithm can effectively improve the communication guarantee performance of ships in a heterogeneous wireless network scenario for ship formation at sea.