NDLI: Self-organizing distributed inter-cell beam coordination in cellular networks with best effort traffic

Content Provider	IEEE Xplore Digital Library
Author	Wunder, G. Kasparick, M. Stolyar, A. Viswanathan, H.
Copyright Year	2010
Description	Author affiliation: Fraunhofer MCI, Heinrich-Hertz-Institut (Wunder, G.; Kasparick, M.) \|\| Alcatel-Lucent Bell Labs, MH (Stolyar, A.; Viswanathan, H.)
Abstract	Interference reduction, cooperation and the performance of cell-edge users are important issues in next generation cellular systems. Based on previous works for single-input singleoutput (SISO) systems, we propose a novel interference reducing self-organizing coordination scheme for a multi antenna OFDM system with space division multiple access (SDMA). The proposed Virtual Subband Algorithm (VSA) tries to maximize the overall network utility by adjusting transmit powers on a per beam granularity and leads to a soft fractional frequency reuse. It uses only small additional information exchange between sectors and infrequent additional long-term feedback. Although reducing interference, VSA follows a completely new approach by having all beams switched-on all the time. Simulations show that in static settings compared to a non-cooperative, highly opportunistic, greedy scheduling scheme, VSA achieves significant gains both in the performance of cell-edge users and in the overall system performance, defined in this paper as the geometric average of user throughputs. Moreover it is shown that cell-edge users benefit even in fast-fading cases, although a gain in system-wide performance cannot be guaranteed.
Starting Page	295
Ending Page	302
File Size	821935
Page Count	8
File Format	PDF
ISBN	9781424475230
e-ISBN	9781424475254
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-31
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	INRIA
Subject Keyword	Solid modeling Utility programs OFDM System performance Land mobile radio cellular systems Feedback Telecommunication traffic Interference Performance gain Multiaccess communication
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Self-Organizing Distributed Inter-Cell Beam Coordination in Cellular Networks with Best Effort Traffic

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