NDLI: Multi-device selection scheduling in non-identically distributed fading channels

Content Provider	IET Digital Library
Author	Ko, Youngwook Quddus, Atta Ul Tafazolli, Rahim
Abstract	Multiuser selection scheduling concept has been recently proposed in the literature in order to increase the multiuser diversity gain and overcome the significant feedback requirements for the opportunistic scheduling schemes. The main idea is that reducing the feedback overhead saves per-user power that could potentially be added for the data transmission. In this work, the authors propose to integrate the principle of multiuser selection and the proportional fair scheduling scheme. This is aimed especially at power-limited, multi-device systems in non-identically distributed fading channels. For the performance analysis, they derive closed-form expressions for the outage probabilities and the average system rate of the delay-sensitive and the delay-tolerant systems, respectively, and compare them with the full feedback multiuser diversity schemes. The discrete rate region is analytically presented, where the maximum average system rate can be obtained by properly choosing the number of partial devices. They optimise jointly the number of partial devices and the per-device power saving in order to maximise the average system rate under the power requirement. Through the authors’ results, they finally demonstrate that the proposed scheme leveraging the saved feedback power to add for the data transmission can outperform the full feedback multiuser diversity, in non-identical Rayleigh fading of devices’ channels.
Starting Page	1758
Ending Page	1768
Page Count	11
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 14, Sep (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0977
Journal	IET Communications
Publisher Date	2016-09-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Closed-form Expression Data Transmission Delay-sensitive System Delay-tolerant System Discrete Rate Region Diversity Reception Fading Channel Feedback Overhead Reduction Maximum Average System Rate Multidevice Selection Scheduling Multiuser Channel Multiuser Diversity Gain Multiuser Selection Scheduling Nonidentical Rayleigh Fading Nonidentically Distributed Fading Channel Opportunistic Scheduling Scheme Outage Probability Power Consumption Proportional Fair Scheduling Scheme Radio Link And Equipment Reliability Statistical Distribution Statistics Telecommunication Network Reliability Telecommunication Power Management Telecommunication Scheduling
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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