A Novel Packet Scheduling for High Speed Bursty Traffic in LTE based-3G Concepts

Third Generation partnership project long term evolution (3GPP LTE) requires low complexity, efficient scheduling policies to sustain optimal system operation while maintaining high level Quality of Service (QoS) to each active traffic flow. In sequel, the fairness principle is crucial in the design of a robust scheduler, due to buffer status, spectrum allocation limitations, intra-cell interference restrictions and delay requirements. In this paper, we propose two novel schedulers for LTE 3G networks, capable of supporting high speed bursty data, namely Delay Threshold Normalized Scheduler (DTNS) and Queue Packet Normalized Scheduler (QPNS). Both schedulers are founded on the concept of overall traffic flow queue evaluation, in a recursive manner. In addition, the packet scheduling procedure is jointly designed to operate within a cross-layer framework, incorporating variations of the LTE wireless channel. For comparison purposes, we show that the proposed schedulers outperform adopted, 3G schedulers on the average service delay and packet loss, while maintaining low per-slot in-processing complexity.