基于MAC层优先级调度的宽带电力线跨层资源分配
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摘要
传统的资源分配算法采用分层系统,且不适用于宽带电力线通信系统中的不良信道环境。文中引入跨层思想提高资源利用率,保证服务质量(QoS),提出了一种基于MAC层QoS优先级调度功能的宽带电力线跨层资源分配方案。该算法考虑了实时用户对延迟的要求和非实时用户对队列长度的要求,并提出用户优先级函数。根据其优先级函数计算每个用户的数据包数量,生成基于效用函数的调度序列。在物理层中,根据调度的数据包,该算法分配物理资源用于分组。仿真结果表明,该算法在提高用户QoS的同时兼顾了系统的性能和吞吐量。
The traditional resource allocation algorithm adopts a layered system and is not suitable for the bad channel environment in broadband power line communication systems. This paper introduces crosslayer to improve resource utilization and guarantee quality of service( QoS). A broadband power line cross-layer resource allocation scheme based on MAC layer QoS priority scheduling is proposed. The algorithm considers the requirements of real-time users for delay and the requirements of non-real-time users for queue length,and proposes a user priority function. The number of packets per user is calculated according to its priority function,and a scheduling sequence based on the utility function is generated. In the physical layer,according to the scheduled data packets,the algorithm allocates physical resources for grouping. The simulation results show that the algorithm improves the QoS for users while taking the performance and throughput of the system into account.
The traditional resource allocation algorithm adopts a layered system and is not suitable for the bad channel environment in broadband power line communication systems. This paper introduces crosslayer to improve resource utilization and guarantee quality of service( QoS). A broadband power line cross-layer resource allocation scheme based on MAC layer QoS priority scheduling is proposed. The algorithm considers the requirements of real-time users for delay and the requirements of non-real-time users for queue length,and proposes a user priority function. The number of packets per user is calculated according to its priority function,and a scheduling sequence based on the utility function is generated. In the physical layer,according to the scheduled data packets,the algorithm allocates physical resources for grouping. The simulation results show that the algorithm improves the QoS for users while taking the performance and throughput of the system into account.
引文
[1]闫政.双向有线网络安全域划分及防护建议[J].网络安全技术与应用,2018(3):26-27.
[2]王艺,孟晓景,张彬. PPP协议中IPCP协商机制研究与实验[J].电脑知识与技术,2016,12(17):29-31.
[3]陆俊,刘振宇,徐志强,等.计及接入控制策略的宽带电力线OFDM系统跨层资源分配[J].电网技术,2016,40(6):1858-1866.
[4] Golany B,Goldberg N,Rothblum U G. A two-resource allocation algorithm with an application to large-scale zero-sum defensive games[J]. Computers&Operations Research,2017,78:218-229.
[5]Rodriguez M A,Buyya R. Deadline based resource provisioningand scheduling algorithm for scientific workflows on clouds[J]. IEEE transactions on Cloud Computing,2014,2(2):222-235.
[6]龚钢军,陆俊,熊琛,等.混合业务公平的宽带电力线正交频分复用系统跨层资源分配[J].中国电机工程学报,2015,35(6):1390-1398.
[7]冯维,冯穗力,丁跃华,等.无线多跳网络下基于过时信道状态信息的跨层资源分配[J].电子与信息学报,2014,36(11):2750-2755.
[8]李为,熊春林,王德刚,等.基于多维离散粒子群优化的协同OFDMA系统跨层资源分配[J].通信学报,2014,35(4):17-24.
[9]文少杰,黄传河. FANET中时延感知的跨层优化方法[J].通信学报,2018,39(4):1-12.
[10]张永林,令晓明.一种基于模糊排队论的网络拥塞控制算法[J].科技信息,2013(11):100-101,138.
[11]江琳丽,罗屹洁,张雅敏.基于物理层安全的D2D功率控制和信道接入[J].通信技术,2016,49(7):872-875.
[12]姚林.简析电力线宽带通信技术在智能电网用电信息采集中的实施要点[J].电子世界,2014(16):218.
[13]胡正伟,谢荣圆,谢志远.基于Qo S参数的电力线信道状态映射方法[J].电力自动化设备,2016,36(10):159-165.
[14]周翰逊,郭薇,刘建,等.基于马尔可夫链的网络蠕虫传播模型[J].通信学报,2015,36(5):70-77.
[15]Yang G,Du J,Xiao M. Maximum throughput path selection with random blockage for indoor 60 GHz relay networks[J]. IEEE Transactions on Communications,2015,63(10):3511-3524.
[2]王艺,孟晓景,张彬. PPP协议中IPCP协商机制研究与实验[J].电脑知识与技术,2016,12(17):29-31.
[3]陆俊,刘振宇,徐志强,等.计及接入控制策略的宽带电力线OFDM系统跨层资源分配[J].电网技术,2016,40(6):1858-1866.
[4] Golany B,Goldberg N,Rothblum U G. A two-resource allocation algorithm with an application to large-scale zero-sum defensive games[J]. Computers&Operations Research,2017,78:218-229.
[5]Rodriguez M A,Buyya R. Deadline based resource provisioningand scheduling algorithm for scientific workflows on clouds[J]. IEEE transactions on Cloud Computing,2014,2(2):222-235.
[6]龚钢军,陆俊,熊琛,等.混合业务公平的宽带电力线正交频分复用系统跨层资源分配[J].中国电机工程学报,2015,35(6):1390-1398.
[7]冯维,冯穗力,丁跃华,等.无线多跳网络下基于过时信道状态信息的跨层资源分配[J].电子与信息学报,2014,36(11):2750-2755.
[8]李为,熊春林,王德刚,等.基于多维离散粒子群优化的协同OFDMA系统跨层资源分配[J].通信学报,2014,35(4):17-24.
[9]文少杰,黄传河. FANET中时延感知的跨层优化方法[J].通信学报,2018,39(4):1-12.
[10]张永林,令晓明.一种基于模糊排队论的网络拥塞控制算法[J].科技信息,2013(11):100-101,138.
[11]江琳丽,罗屹洁,张雅敏.基于物理层安全的D2D功率控制和信道接入[J].通信技术,2016,49(7):872-875.
[12]姚林.简析电力线宽带通信技术在智能电网用电信息采集中的实施要点[J].电子世界,2014(16):218.
[13]胡正伟,谢荣圆,谢志远.基于Qo S参数的电力线信道状态映射方法[J].电力自动化设备,2016,36(10):159-165.
[14]周翰逊,郭薇,刘建,等.基于马尔可夫链的网络蠕虫传播模型[J].通信学报,2015,36(5):70-77.
[15]Yang G,Du J,Xiao M. Maximum throughput path selection with random blockage for indoor 60 GHz relay networks[J]. IEEE Transactions on Communications,2015,63(10):3511-3524.