2nd International IEEE Conference on Communication System Software and Middleware

Research Article

Opportunistic Proportionate Fairness Adaptive Scheduler for High Speed Packet Access System

  • @INPROCEEDINGS{10.1109/COMSWA.2007.382605,
        author={ Avinash  Venkatesh and  Baiju Parameswaran and Saptarshi Chaudhur},
        title={Opportunistic Proportionate Fairness Adaptive Scheduler for High Speed Packet Access System},
        proceedings={2nd International IEEE Conference on Communication System Software and Middleware},
        publisher={IEEE},
        proceedings_a={COMSWARE},
        year={2007},
        month={7},
        keywords={Adaptive scheduling  Control systems  Delay  Engines  Feedback  Physical layer  Power system management  Scheduling algorithm  Throughput  Traffic control},
        doi={10.1109/COMSWA.2007.382605}
    }
    
  • Avinash Venkatesh
    Baiju Parameswaran
    Saptarshi Chaudhur
    Year: 2007
    Opportunistic Proportionate Fairness Adaptive Scheduler for High Speed Packet Access System
    COMSWARE
    IEEE
    DOI: 10.1109/COMSWA.2007.382605
Avinash Venkatesh1, Baiju Parameswaran1, Saptarshi Chaudhur1
  • 1: Center of Excellence, Wireless Business Unit Wipro Technologies Bangalore, India

Abstract

3G MAC entity forms the most important part of any high speed packet access system. Due to high data rate requirements, MAC layer requires an efficient scheduler algorithm that can optimize the flow control, buffer utilization as well as channel quality requirements. The MAC entity consists of mainly the flow control engine, buffer management, scheduler and HARQ process that together provide a steady packet flow to the physical layer. In this paper, we propose a new algorithm to address the scheduler functionality. This algorithm provides the correct feedback to flow control and the HARQ process for data flow. The algorithm selects users for transmission bits based on their actual buffer occupancies per queue, dynamic token value traffic class priority, as well as channel conditions reporting from the access terminal. This algorithm is named as the opportunistic proportionate fairness scheduler (OPFS).