QoS-Based Two-Level user Scheduling Scheme for MU-MIMO Wireless LANs
D. Srinivasa Rao1, V. Berlin Hency2
1D. Srinivasa Rao, Department of ECE, GMR Institute of Technology, Rajam, VIT, Chennai (Tamil Nadu), India
2V. Berlin Hency, Department of Electronics Engineering, VIT, Chennai (Tamil Nadu), India.
Manuscript received on 14 December 2019 | Revised Manuscript received on 22 December 2019 | Manuscript Published on 31 December 2019 | PP: 32-39 | Volume-9 Issue-1S3 December 2019 | Retrieval Number: A10081291S319/19©BEIESP | DOI: 10.35940/ijeat.A1008.1291S319
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The advances in physical layer technology has led to the performance upgradation of wireless local area networks (WLANs). More recently, multi-input multi-output (MIMO) is considered to be a key technology to enable high data rate transmission in WLANs. However, the actual benefit of this approach can be utilized, if there is an appropriate mechanism to select and schedule the users. Also, providing Quality of Service (QoS) support to user demands has become a major task in WLANs. In this paper, a two-level user scheduling approach for WLANs is discussed and its performance is evaluated using high-transmission rates with the assumption of frequency selective fading. For the purpose of comparison, some well-known medium access control (MAC) scheduling schemes are considered. It is shown that, the proposed scheme enhances throughput and achieves fairness among the users. Further, this scheme can be used to reduce contention during the acquisition of channel feedback.
Keywords: Quality of Service, Channel Feedback, Scheduler, Throughput, Fairness.
Scope of the Article: Wireless Power Transmission