Optimization for online open communication network channel allocation algorithm

针对传统的通信网络信道分配方法进行信道分配时存在信道分配不准确及效率低的问题,提出一种基于干扰度与链路优先级划分的通信网络信道分配方法.由Posisson分布模型建立通信网络节点流量模型,对链路流量及干扰进行评估,建立干扰模型计算出对应干扰程度等级,结合流量模型及干扰模型对分配的信道设计权重值,根据计算出的权值作为选取信道的依据,并根据优先级对网络信道进行分配.实验结果表明,相比传统的信道分配算法,采用改进算法进行信道分配吞吐量较高,信道分配精确度好,具有一定的优势.In order to solve the problem that the inaccuracy channel allocation and low efficiency problem exist when the traditional communication network channel allocation method is used for channel allocation, a communication network channel allocation method based on the interference degree and link priority was proposed. The communication network node flow model was established with the Posisson distribution model to assess the link traffic and interference. In addition, the interference model was established, and the corresponding disturbance degree level was calculated. In combination with both flow model and interference model, the weight for the allocated channel was designed. The calculated weight was taken as the basis of selected channel, and the network channel was allocated according to the priority. The results show that compared with the traditional channel allocation algorithm, the improved algorithm for channel allocation has higher throughput and better channel allocation accuracy, and has a certain advantage. ? 2017, Editorial Department of Journal of Shenyang University of Technology. All right reserved.安徽省高校自然科学研究资助项目(KJHS2016B02);安徽省教育厅质量工程资助项目(2015ckjh089

Design of an MAC protocol for distributed wireless network with low power consumption

为了提高分布式全双工无线网络的能量效率,提出了一种改进的低功耗全双工媒体访问控制（MAC）协议.不同于传统的MAC协议,该MAC协议通过降低数据包以及确认包的传输功率来实现能量有效性.提出的MAC协议支持双向以及单向两种链路,并保持对传统半双工节点具有向后兼容性,实现了较高的吞吐量.通过基于随机几何的方法对提出的MAC协议进行了仿真分析与性能评估,结果证明了其有效性和准确性,是全双工无线网络可行的一种解决方案.In order to improve the energy efficiency of the distributed full duplex wireless network, an improved full duplex medium access control (MAC) protocol with low power consumption was proposed. Unlike the traditional MAC protocol, the proposed MAC protocol could achieve the energy efficiency through reducing the transmission power of data and acknowledgement packets. The proposed MAC protocol supported both bidirectional and unidirectional links, and maintained the backward compatibility to the traditional half duplex nodes, which could achieve a high throughput. The simulation analysis and performance evaluation for the proposed MAC protocol were carried out based on the random geometry method. The results verify the effectiveness and accuracy of the proposed method. The proposed method is a feasible solution scheme for the full duplex wireless network. ? 2017, Editorial Department of Journal of Shenyang University of Technology. All right reserved.国家文化部科技创新资助项目（WHBKJCXXM20142554）;国家文化部科技提升资助项目（GJWHKJTSXM20151991）; 江苏省高等教育教改课题资助项目（2015jsjg411