NDLI: Base Station Cooperatively Scheduled Transmission in a Cellular MIMO TDMA System

Content Provider	IEEE Xplore Digital Library
Author	Choi, W. Andrews, J.G.
Copyright Year	2006
Description	Author affiliation: Texas Univ., Austin, TX (Choi, W.; Andrews, J.G.)
Abstract	The capacity and robustness of cellular MIMO systems is very sensitive to other-cell interference, which will in practice necessitate network level interference reduction strategies. As an alternative to traditional static frequency reuse patterns, this paper investigates cooperatively scheduled transmissions among neighboring base stations. We analytically show that cooperatively scheduled transmission, which is well within the capability of present systems, can achieve an expanded multiuser diversity gain in terms of ergodic capacity as well as almost the same amount of interference reduction as conventional frequency reuse. From a theoretical standpoint, an interesting aspect of this analysis comes from an altered view of multiuser diversity in the context of a multi-cell system. Previously, multiuser diversity capacity gain has been known to grow as O(log log K), from selecting the maximum of K exponentially-distributed powers. Because the positions of the users are important in a multi-cell system, we find instead that the gain is O(radic(1og K)), from selecting the maximum of a compound lognormal-exponential distribution.
Starting Page	105
Ending Page	110
File Size	601951
Page Count	6
File Format	PDF
ISBN	1424403499
DOI	10.1109/CISS.2006.286444
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-22
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cellular networks Base stations Time division multiple access Processor scheduling Array signal processing Transmitters Interference Diversity methods Frequency MIMO
Content Type	Text
Resource Type	Article

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