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结合LWDF(最大加权时延优先)算法的思想,通过一种业务区分函数提出了DS-LWDF(业务区分的LWDF)算法,实现了对RT业务和NRT业务的区分调度。在此基础上,根据接收ACK包的能量强度,对业务区分函数进行能量加权,设计了WP-LWDF(能量加权的LWDF)算法。QualNet中的仿真结果表明,无线网络条件下,DS-LWDF和WP-LWD算法在保证NRT业务吞吐量和公平性的同时,能够有效降低RT业务的平均时延,并提升RT业务的平均吞吐量;WP-LWDF算法在DS-LWDF算法的基础上引入了能量加权,进一步优化了RT业务的时延和吞吐量性能。
Combined with the idea of LWDF (Maximum Weighted Latency-First) algorithm, a DS-LWDF (Service Differentiated LWDF) algorithm is proposed through a service differentiation function, and a differentiated scheduling of RT service and NRT service is realized. On this basis, according to the energy intensity of the received ACK packet, the energy of the service differentiation function is weighted, and the WP-LWDF (energy weighted LWDF) algorithm is designed. The simulation results in QualNet show that the DS-LWDF and WP-LWD algorithms can reduce the average delay of RT services and increase the average throughput of RT services while ensuring the throughput and fairness of NRT services under the wireless network conditions The WP-LWDF algorithm introduces energy weighting based on the DS-LWDF algorithm, further optimizing the delay and throughput performance of the RT service.