ZTE

ZTE Communications ›› 2009, Vol. 7 ›› Issue (4): 45-48.

• Research Paper • Previous Articles     Next Articles

Packet Scheduling Algorithm for Real-Time Services in Broadband WMAN

Zhang Hanyi, Su Xin   

  1. Wireless and Mobile Communication Technology R&D Center of Tsinghua University , Tsinghua National Laboratory for Information Science and Technology , Beijing 100084 , China
  • Online:2009-12-25 Published:2020-03-03
  • About author:Zhang Hanyi is a master degree candidate at the Wireless and Mobile Communication Technology R&D Center of Tsinghua University. He is mainly engaged in the research and standardization of broadband WMANs and next-generation wireless communication technologies

    Su Xin, PhD, is the deputy director of the Wireless and Mobile Communication Technology R&D Center of Tsinghua University. He is also the deputy group leader of B3G Workgroup (WG6) of Wireless Communication Technology Committee of China Communications Standards Association, leader of IMT-Advanced Promotion Group of the MIIT of China, and a member of IEEE Communications Society. He has long been engaged in the research of mobile communications, software defined radio and broadband wireless access, and has undertaken several national- and ministry-level scientific ▲ research projects.
  • Supported by:
    This work was funded by the National High Technology Research and Development Program (“863” Program) of China under Grant No. 2007AA01Z289.

Packet Scheduling Algorithm for Real-Time Services in Broadband WMAN

Zhang Hanyi, Su Xin   

  1. Wireless and Mobile Communication Technology R&D Center of Tsinghua University , Tsinghua National Laboratory for Information Science and Technology , Beijing 100084 , China
  • 作者简介:Zhang Hanyi is a master degree candidate at the Wireless and Mobile Communication Technology R&D Center of Tsinghua University. He is mainly engaged in the research and standardization of broadband WMANs and next-generation wireless communication technologies

    Su Xin, PhD, is the deputy director of the Wireless and Mobile Communication Technology R&D Center of Tsinghua University. He is also the deputy group leader of B3G Workgroup (WG6) of Wireless Communication Technology Committee of China Communications Standards Association, leader of IMT-Advanced Promotion Group of the MIIT of China, and a member of IEEE Communications Society. He has long been engaged in the research of mobile communications, software defined radio and broadband wireless access, and has undertaken several national- and ministry-level scientific ▲ research projects.
  • 基金资助:
    This work was funded by the National High Technology Research and Development Program (“863” Program) of China under Grant No. 2007AA01Z289.

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Abstract: Packet scheduling algorithm is the key technology to guarantee Quality of Service (QoS ) and balance the fairness between users in broadband Wireless Metropolitan Area Network (WMAN ). Based on the research of Proportional Fairness (PF ) algorithm and Modified Largest Weighted Delay First (M-LWDF ) algorithm, a new packet scheduling algorithm for real-time services in broadband WMAN, called Enhanced M-LWDF (EM-LWDF ), was proposed. The algorithm phases in new information to measure the load of service queues and updates the state parameters in real-time way, which remarkably improves system performance.Simulation results show that comparing with M-LWDF algorithm, the proposed algorithm is advantageous in performances of queuing delay and fairness while guaranteeing system throughput.

摘要： Packet scheduling algorithm is the key technology to guarantee Quality of Service (QoS ) and balance the fairness between users in broadband Wireless Metropolitan Area Network (WMAN ). Based on the research of Proportional Fairness (PF ) algorithm and Modified Largest Weighted Delay First (M-LWDF ) algorithm, a new packet scheduling algorithm for real-time services in broadband WMAN, called Enhanced M-LWDF (EM-LWDF ), was proposed. The algorithm phases in new information to measure the load of service queues and updates the state parameters in real-time way, which remarkably improves system performance.Simulation results show that comparing with M-LWDF algorithm, the proposed algorithm is advantageous in performances of queuing delay and fairness while guaranteeing system throughput.