Paper Info
Title
An Experimental Evaluation Of Broadband Spatial Ia For Uncoordinated Mimo-Ofdm Systems
Abstract
In this paper we present an experimental study on the performance of spatial Interference Alignment (IA) in broadband indoor wireless local area network scenarios that use Orthogonal Frequency Division Multiplexing (OFDM) according to the IEEE 802.11a physical-layer specifications. Experiments have been carried out using a wireless network testbed made up of six nodes equipped with Multiple-Input Multiple-Output (MIMO) radio interfaces. This setup allows the implementation of a 3-user MIMO interference channel. We have implemented different IA decoding schemes that operate either before or after the Fast Fourier Transform block. IA has been experimentally evaluated comparing both approaches to analyze its performance in synchronous and asynchronous transmissions. Our results indicate that spatial IA performs satisfactorily in practical broadband indoor scenarios in which wireless channels often exhibit relatively large coherence times.
Year
Venue
Keywords
2015
2015 IEEE INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING (DSP)
Interference alignment, OFDM, WLAN systems, interference channel, MIMO testbed
Field
DocType
Citations 
Wireless network,Computer science,Computer network,Electronic engineering,Artificial intelligence,Radio resource management,MIMO-OFDM,Computer vision,3G MIMO,Multi-user MIMO,MIMO,Wi-Fi,Spatial multiplexing
Conference
0
PageRank 
References 
Authors
0.34
10
5
Name
Order
Citations
PageRank
Jacobo Fanjul112.71
Christian Lameiro2397.71
Ignacio Santamaría394181.56
José Antonio García-Naya49919.97
Luis Castedo557773.24