Paper Info
Title
Performance Assessment Of Multi User Inter Cell Interference Alignment With Measured Channels
Abstract
It has been shown that in a multi-user multi-cell network, the Multi User Inter Cell Interference Alignment (MUI-CIA) based transmit precoding outperforms the non-alignment based state of the art precoding schemes. The theory of MUI-CIA is based on the assumption that the partial and stale inter-cell interference (ICI) information is still useful. This ICI is used by the transmitter to design he precoding such that the ICI and the multi-user interference (MUI) are aligned at the receiver. In this paper, we provide the proof of this concept with the help of measured channels. By using a measurement test-bed, we demonstrate that in slow time variant channels, the partial ICI contains useful information. Our outcomes are based on two different indoor scenarios for a multi user multi cell system with multiple antenna users. We also take into account the impact of training overhead on the performance in order to realize the feasibility of MUICIA with nominal overhead. Moreover, we compare the performance of MUICIA with other non-alignment based multi user precoding schemes. The results show that the concept of MUICIA is valid and it provides higher gains in a multi cell setup than other non-alignment based precodings with high as well as nominal training overhead.
Year
Venue
Field
2014
2014 IEEE 25TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATION (PIMRC)
Transmitter,Spatial correlation,Telecommunications,Computer science,Signal-to-noise ratio,Real-time computing,Interference (wave propagation),Zero-forcing precoding,Computer engineering,Orthogonal frequency-division multiplexing,Precoding,Multi-user
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
5
5
Name
Order
Citations
PageRank
Danish Aziz114714.25
Syed Ammar Iqbal Ahmed200.34
Cornelis Hoek315313.08
Guenther Herzog401.01
Johannes Koppenborg5655.91