By Topic

A practical precoding scheme for multicell MIMO channels with partial user's data sharing

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Paul de Kerret ; Mobile Communications Department, Eurecom, 2229 route des Crêtes, 06560 Sophia Antipolis, France ; Rajeev Gangula ; David Gesbert

In this work1, we consider a setting where K Transmitters (TXs) equipped with multiple antennas aim at transmitting to their K respective Receivers (RXs) also equipped with multiple antennas. Without exchange of the user's data symbols, this represents a conventional Interference Channel (IC), while it is a so-called MIMO Network Channel if the user's data symbols are fully shared between all the TXs. The focus of this work is on the intermediate case where the user's data symbols can be arbitrary shared to the TXs such that only a subset of the TXs has access to the data symbols to transmit to a given RX. We show that we can build a virtual IC so as so have the transmission in that IC equivalent to the transmission in the original setting. In this virtual IC, it is then possible to apply any of the numerous algorithms (Interference Alignment algorithms) initially tailored for the IC. Finally, we let the routing matrix be optimized subject to a constraint on the total number of symbols shared and use a greedy algorithm to find the user's data allocation. We show by simulations that sharing only few user's data symbols is sufficient to achieve most of the performance.

Published in:

Wireless Communications and Networking Conference Workshops (WCNCW), 2012 IEEE

Date of Conference:

1-1 April 2012