Self-Organizing Distributed Inter-Cell Beam Coordination in Cellular Networks with Best Effort Traffic - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2010

Self-Organizing Distributed Inter-Cell Beam Coordination in Cellular Networks with Best Effort Traffic

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.
Fichier principal
Vignette du fichier
p130-wunder.pdf (800.43 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

inria-00501495 , version 1 (12-07-2010)

Identifiers

  • HAL Id : inria-00501495 , version 1

Cite

Gerhard Wunder, Martin Kasparick, Alexander Stolyar, Harish Viswanathan. Self-Organizing Distributed Inter-Cell Beam Coordination in Cellular Networks with Best Effort Traffic. WiOpt'10: Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, May 2010, Avignon, France. pp.130-137. ⟨inria-00501495⟩

Collections

WIOPT2010
74 View
204 Download

Share

Gmail Facebook X LinkedIn More