Home // International Journal On Advances in Networks and Services, volume 4, numbers 3 and 4, 2011 // View article

Packet Scheduling Architecture with Service Specific Queue Sorting and Adaptive Time Domain Scheduling Algorithms for LTE-Advanced Networks

Authors:
Yue Chen
Kok. Keong Chai
John Schormans

Keywords: LTE-A; Packet Scheduling (PS); OFDMA; Quality of Service (QoS); mixed traffic.

Abstract:
In this paper, a cross layer design packet scheduling architecture is proposed for Long Term Evolution-Advanced downlink transmission, to guarantee the support of quality of service requirements in a mixed traffic environment. The proposed architecture uses service specific queue sorting algorithms for different traffic types and an adaptive time domain scheduling algorithm to adaptively allocate available resources to real time and non real time traffic. Multiuser diversity is exploited both in the time domain and frequency domain by jointly considering the channel state information and queue state information. The aim is to improve the support of QoS guarantees to real time voice and non real time streaming video traffic and to maintain a good trade-off between system throughput and user fairness by optimizing the use of available radio resources. Results show that proposed packet scheduling architecture reduces delay, delay viability and packet drop rate of real time traffic while satisfying minimum throughput requirements of non real time traffic and it maintains the system throughput and fairness among users at good level.

Pages: 244 to 256

Copyright: Copyright (c) to authors, 2011. Used with permission.

Publication date: April 30, 2012

Published in: journal

ISSN: 1942-2644