NDLI: Delay-limited capacity of parallel fading channels

Content Provider	IEEE Xplore Digital Library
Author	Jorswieck, E.A. Boche, H.
Copyright Year	2005
Description	Author affiliation: Heinrich-Hertz-Inst., Berlin, Germany (Jorswieck, E.A.; Boche, H.)
Abstract	The delay-limited capacity is defined as the transmission rate that can be guaranteed in all fading states under finite long-term power constraints. For the single-input single-output Rayleigh fading channel it is zero. In contrast it is greater than zero in channels with a certain kind of diversity, e.g., multiple antennas at one side of the link. The optimal transmission strategy in single-channel systems is channel inversion. If multiple parallel channels are available for transmission, the power allocation across channels influences the temporal power allocation. In this work, we study the delay-limited capacity of parallel fading channels. We implicitly characterize it using the temporal waterfilling-level and derive two lower bounds that are tight either for small or high SNR. Then, the results are applied to parallel weighted Gaussian fading channels and the impact of the weights is derived. Finally, we apply the result to the broadcast channel with common downlink information.
Starting Page	495
Ending Page	499
File Size	814558
Page Count	5
File Format	PDF
ISBN	0780388674
DOI	10.1109/SPAWC.2005.1506074
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Wireless communication Streaming media MIMO Rayleigh channels Multimedia communication Downlink Delay effects Multimedia systems Physical layer
Content Type	Text
Resource Type	Article

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