摘要
为提高海上无人艇编队无线网络频谱利用率,同时满足不同优先级信息的传输需求,提出了一种信息优先级保护的动态频谱分配算法。算法采用完全信息动态博弈模型,引入异步分布式定价(Asynchronous Distributed Pricing,ADP)算法设计效用函数。鉴于传统ADP算法在有较多通信余量时干扰价格定价过高,改进干扰价格定义。为体现优先级对分配的影响,在效用函数中加入信息权重。对效用函数成本部分进一步更改,可在实现高优先级信息优先传输的同时,依据通信速率需求合理分配信道通信容量。经过仿真验证,所提算法在吞吐量和可靠性方面优于基于节点优先级的分配算法。
In order to improve the spectrum utilization of the wireless network of unmanned surface vehicle formation at sea and meet the transmission requirements of different priority information,an information priority-protected dynamic spectrum allocation algorithm is proposed.The algorithm adopts a complete information dynamic game model,and introduces an asynchronous distributed pricing(ADP)algorithm to design utility function.In view of the high interference price of traditional ADP algorithm when there is more communication margin,the definition of interference price is improved.In order to reflect the influence of priority on allocation,information weight is added to utility function.The cost part of utility function is further changed,which can realize the priority transmission of high priority information and allocate the channel communication capacity according to the communication rate.The simulation results show that the proposed algorithm is superior to the node priority based allocation algorithm in terms of throughput and reliability.
作者
毛忠阳
孙林
刘锡国
刘传辉
MAO Zhongyang;SUN Lin;LIU Xiguo;LIU Chuanhui(Aviation Communication Teaching and Research Section,Naval Aeronautic University,Yantai 264001,China;State Key Laboratory of Signal and Information Processing of Shandong,Naval Aeronautic University,Yantai 264001,China)
出处
《电讯技术》
北大核心
2022年第8期1023-1028,共6页
Telecommunication Engineering
基金
国家自然科学基金资助项目(6170012154)。
关键词
无人艇编队
认知无线电
动态频谱分配
信息优先级
动态博弈
异步分布式定价(ADP)
unmanned surface vehicle formation
cognitive radio
dynamic spectrum allocation
information priority
dynamic game
asynchronous distributed pricing(ADP)
