NDLI: SIR Prediction for Downlink Packet Access

Content Provider	IEEE Xplore Digital Library
Author	Ling, J. Tureli, U.
Copyright Year	2006
Description	Author affiliation: Lucent Technol., Holmdel, NJ (Ling, J.)
Abstract	In cellular systems, with frequency reuse of one, basestations strongly interfere with each other on downlink. Typically more than forty percent of the cell area faces a signal to interference ratio of 0 dB or less. To improve system throughput, packet transmissions are scheduled by the base when signal to interference ratio is higher than each mobile's average. Downlink pilots are measured and the SIR is fed back as a measure of the achievable rate. We examine prediction of the channel signal to interference ratio by the mobile. Both powers are modeled as auto-regressive stochastic processes. We derive the probability distribution function of the prediction error to determine the backoff margin required for a percentage of packets to be decoded successfully. The performance improvement due to prediction for a proportional fair scheduled system is shown through simulation
Starting Page	1
Ending Page	5
File Size	303241
Page Count	5
File Format	PDF
ISBN	142440617X
DOI	10.1109/MILCOM.2006.302091
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Downlink Interference Throughput Decoding Frequency Feedback Delay estimation Diversity reception Scheduling Channel capacity
Content Type	Text
Resource Type	Article

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