Resource allocation by pondering parameters for uplink system in LTE Networks

Abstract

Long Term Evolution (LTE) Networks were proposed for serving a multitude of high-speed data-rate services. For such systems, the Quality of Service (QoS) at the wireless part needs to be guaranteed by using smart, fast and strong resource allocation mechanisms. In order to build such algorithms, several parameters such as channel conditions, packet delays, queue length sizes and flow bitrates should be used to compute a maximization metric. Most authors compute such metric by obtaining the product of the afore-mentioned parameters. We consider this fact as a huge mistake. In this paper, we analyse the relevance of each parameter and give them different pounds. We propose a new resource allocation algorithm that presents a low complexity level. It works in a heterogeneous service scenario real time (RT) and non-Real Time (NRT). In order to evaluate the performance of our algorithm, several QoS constraints such as throughput, Packet Loss Ratio (PLR) and Fairness Index (FI) are used.

A semi-persistent scheduling scheme for videotelephony traffics in the uplink of LTE networks

“…Scheduling of uplink resources is done by the eNB which allocates RBs to the UEs every TTI (Transmission Time Interval) of 1 ms in the time and frequency domain. Unlike downlink, resource allocation in uplink system needs to be done per users, even though each user may have several flows [4]. Besides, Resource Blocks (RBs) to be assigned to the same User Equipment (UE) must be contiguous.…”

“…Nethertheless, researches have started to design scheduling schemes in the uplink. In the litterature the proposed schemes can be classified into three different groups which are opportunistic, delay-based and multiclass-based [4]. One of the powerful and recently proposed schemes is the First Maximum Expansion (FME) algorithm [11].…”

Resource Allocation in LTE: An Extensive Review on Methods, Challenges and Future Scope

“…VoIP, video conferencing, online gaming are some of the real time application whereas the HTTP, FTP, P2P are the examples for non-real time applications that are widely used in LTE. Researchers have proposed various mechanism for resource allocation scheme for uplink system .Different mechanism such as based on opportunistic approach, scheduler with Proportional Fairness (PF) based utility function such as First Maximum Expansion (FME), Recursive Maximum Expansion (RME), Minimum Area Difference (MAD), Proportional fair-Frequency Domain Packet Scheduler (PF-FDPS) are introduced and tested by various authors [2]. …”