Investigation on Multi-user Scheduling Algorithms Over Non-identical Channel Distribution and LTE Networks

Abstract

In this paper, we investigate the performance of various multi-user scheduling algorithms over independent and non-identically distributed generalized fading channel and 3GPP long term evolution (LTE) networks. Multi-user scheduling is an important task to be performed in wireless communication networks to share the bandwidth resource effectively between large number of users. In this paper, novel expressions for average BER, average channel capacity and fairness among users are derived for various scenarios such as (1) independent identical fading parameter, independent non identical average SNR channel conditions and (2) both fading parameter and average SNR are independent and non-identically distributed under absolute SNR (AS) scheduling and threshold SNR scheduling. More over the performance of threshold SNR scheduling is compared with AS scheduling and other existing scheduling techniques to identify a suitable scheduling algorithm for LTE networks. Analytical expressions are simulated and validated through MATLAB, and insightful discussions are provided from the numerical results.