Real-Time Traffic Packet Scheduling Algorithm in HSDPA System Considering the Maximum Tolerable Delay and Channel Assignment

  • Authors:

  • Xiaodong Yu;Sung Won Kim;Yong Wan Park

  • Affiliations:

  • Department of Information & Communication Engineering, Yeungnam University, Gyeongsan-si, Korea;Department of Information & Communication Engineering, Yeungnam University, Gyeongsan-si, Korea;Department of Information & Communication Engineering, Yeungnam University, Gyeongsan-si, Korea

  • Venue:
  • ICESS '07 Proceedings of the 3rd international conference on Embedded Software and Systems
  • Year:
  • 2007

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Abstract

In this paper, we consider a new packet scheduling algorithm for real time traffic in the high speed downlink packet access system that has been introduced for WCDMA system to providing high transmission rates. The objective of the design is to meet the maximum tolerable delay and consider the channel assigning based on the received SIR for real-time traffic users. The proposed scheduling algorithm shows that the users are ranked by the ratios of the bits in the buffer to the residual time for transmission, the ranked users are assigned channels based on the SIR value table and get service one by one. The simulation results show that the proposed algorithm can provide the lower packet drop rate for real time quality of service (QoS) requirement.