QoS oriented heterogeneous traffic scheduling in LTE downlink

In this paper, Rate-Level-Based Scheduling (RLBS) Algorithm is proposed to support the heterogeneous traffic in downlink of Long Time Evolution (LTE) system. The proposed scheduling algorithm aims to minimize the packet loss ratio of real-time traffic while guaranteeing Quality of Service (QoS) requirements. We compares the performance of the proposed scheduling algorithm with Modified Largest Weighted Delay First (M-LWDF) algorithm, Exponential PF (EXP/PF) algorithm and Z-Based QoS Scheduler (ZBQoS) algorithm. Simulation shows that compared with other algorithms, the proposed scheduling algorithm can achieve a good tradeoff between satisfaction of QoS requirement and fairness, meanwhile, it can can satisfy the requirement of Guaranteed Bit Rate (GBR) traffic preferably and improve the Packet Loss Ratio (PLR) performance significantly.

[1]  Kumbesan Sandrasegaran,et al.  Performance of well known packet scheduling algorithms in the downlink 3GPP LTE system , 2009, 2009 IEEE 9th Malaysia International Conference on Communications (MICC).

[2]  Jong-Hun Rhee,et al.  Scheduling of real/non-real time services: adaptive EXP/PF algorithm , 2003, The 57th IEEE Semiannual Vehicular Technology Conference, 2003. VTC 2003-Spring..

[3]  Stefania Sesia,et al.  LTE - The UMTS Long Term Evolution, Second Edition , 2011 .

[4]  K. Sandrasegaran,et al.  Performance analysis of EXP/PF and M-LWDF in downlink 3GPP LTE system , 2009, 2009 First Asian Himalayas International Conference on Internet.

[5]  Nelson Luis Saldanha da Fonseca,et al.  LTE time-domain uplink scheduler for QoS provisioning , 2013, 2013 IEEE Global Communications Conference (GLOBECOM).

[6]  Stefania Sesia,et al.  LTE - The UMTS Long Term Evolution , 2009 .

[7]  Cyril Leung,et al.  Proportional Fair Multiuser Scheduling in LTE , 2009, IEEE Signal Processing Letters.

[8]  Andreas Timm-Giel,et al.  Multi-QoS-Aware Fair Scheduling for LTE , 2011, 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring).

[9]  Kumbesan Sandrasegaran,et al.  Delay-Prioritized Scheduling (DPS) for Real Time Traffic in 3GPP LTE System , 2010, 2010 IEEE Wireless Communication and Networking Conference.