NDLI: Efficient Packet Scheduling Schemes for Multiantenna Packet Radio Downlink

Content Provider	IEEE Xplore Digital Library
Author	Nonchev, S. Valkama, M.
Copyright Year	2009
Abstract	In this paper, we propose fairness-oriented dual-stream multiple-input multiple-output (MIMO) packet scheduling schemes for future multi-antenna packet radio systems. In general, multi-user transmit-receive schemes allow users to be scheduled on different parallel streams on the same time-frequency resource. Based on that, implementations of more intelligent scheduling schemes that are aware of the instantaneous state of the radio channel require utilization of time, frequency and spatial domain resources in an efficient manner. Stemming from the earlier advanced Proportional Fair (PF) scheduler studies, we extend the developments to dual-stream MIMO packet radios. Furthermore, we investigate the resulting fairness distribution among users together with efficiency in increasing the system capacity in terms of throughput and coverage by simulating practical orthogonal frequency division multiple access (OFDMA) system environment with MIMO functionality in Micro and Macro cell scenarios. As a concrete example, we demonstrate that by using new multi-user scheduling schemes, significant coverage improvements in the order of 30% can be obtained at the expense of only 14% throughput loss. Furthermore, the user fairness is also greatly increased, by more than 18%, when measured using Jain’s fairness index.
Starting Page	404
Ending Page	409
File Size	489149
Page Count	6
File Format	PDF
ISBN	9781424438402
DOI	10.1109/AICT.2009.73
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-24
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Scheduling algorithm Packet radio networks Downlink MIMO Throughput Time frequency analysis Long Term Evolution Frequency domain analysis Communications technology Electronic mail Fairness Scheduling
Content Type	Text
Resource Type	Article

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