Article Information
Performance Analysis of Real Time and Non-Real Time Scheduling Algorithms in a Hybrid Environment

Keywords: Non-Real Time, Real Time, Scheduling, Algorithm

Mehran University Research Journal of Engineering & Technology

Volume 29 ,  Issue 4



HSDPA (High Speed Downlink Packet Access) was introduced as an enhancement of UMTS (Universal Mobile Telecommunications System) to provide high data rates to non-real time service bearers. Although initially optimized for non-real time services, HSDPA was also proposed to support real time services. Scheduling plays a vital role in properly distributing the limited resources to different real time and nonreal time service users. Most of the previously reported researches treat the real time and non-real time services separately in order to study the performance of various scheduling algorithms. In this research, we provide a comprehensive and comparative study of different scheduling algorithms in a more realistic mixed traffic scenario in HSDPA. State-of-the-art algorithms like Modified Largest Weighted Delay First, Exponential Linear, Proportional Fair and Maximum Carrier to Interference Ratio are compared with respect to different performance parameters like throughput, delay and packet loss ratio. The results provide definite answers regarding the choice of algorithm for different types of traffic.