NDLI: Asymptotic downlink capacity of coordinated cellular networks

Content Provider	IEEE Xplore Digital Library
Author	Huang, H. Sivarama Venkatesan
Copyright Year	2004
Description	Author affiliation: Lucent Technol. Bell Labs., Holmdel, NJ, USA (Huang, H.; Sivarama Venkatesan)
Abstract	This paper explores the fundamental downlink performance limits of multicell networks when cooperation is allowed between all the base station in the network. Toward this end, we infer the asymptotic sum rate of a capacity-achieving technique (known as dirty paper coding) for the broadcast channel in the limit of a large number of transmit antennas and single-antenna users. The users have unequal SNRs characterized by a doubly-regular gain matrix and we show that this condition can be satisfied in a finite cellular network of hexagonal cells where users are placed on corners of hexagons centered on the bases. Under this placement, we can compute the asymptotic rate per user when dirty paper coding is used across base stations in a coordinated network. We extend the analysis to an infinite coordinated network and show that its performance is lower-bounded by that of a single isolated cell. Performance comparisons are also made with conventional cellular networks where coordination among bases is not allowed.
Starting Page	850
Ending Page	855
File Size	562233
Page Count	6
File Format	PDF
ISBN	0780386221
DOI	10.1109/ACSSC.2004.1399258
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Downlink Land mobile radio cellular systems Base stations Array signal processing Broadcasting Transmitting antennas Performance analysis Linear matrix inequalities Computer networks Information theory
Content Type	Text
Resource Type	Article

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