Modified Priority Queuing Packet Scheduling Algorithm for Multi-media Traffic in Wireless Communication Environment

This paper introduces a new packet scheduling algorithm for multi-media traffic. The proposed modified priority queuing (MPQ) packet scheduling algorithm, realizing the high priority traffic service employs exponential distributions with the higher averages respectively, secures the reduction in the mean waiting time regarding the high priority traffic sensitive to delay. Thus, we could meet the requirements for the mean waiting time of the real and non-real-time traffic services. In the wireless communication system adopting the adaptive modulation and coding (AMC), as the proposed MPQ packet scheduling algorithm assigns the higher order modulation with higher code rates to the higher priority service with higher priority, the algorithm can have done good (work) in increasing the number of multi-media service users satisfying the required quality of service (QoS). The performance study has strongly focused on the effects of the proposed MPQ algorithm. Key-Words: Priority Queuing, Adaptive Modulation and Coding, Packet Scheduling Algorithm, Multi-media Traffic.