Paper Info
Title
Relay-aided interference alignment and neutralization for 3-cellular interference channels
Abstract
As everyone knows, the energy of signals diminishes with increasing distance, so users at the edge of hexagon cells have lower signal-to-noise ratio (SNR) than users at the center, which means they are more easily interfered by signals from other base stations. So we consider the application of relay to the cellular case to help users at the edge to eliminate interferences and obtain higher sum-rate. In this paper we don't only use relay to neutralize interferences but also use interference alignment to reduce the number of antennas needed in destinations. To this end, we propose a relay-aided interference alignment and neutralization scheme. The relay knows all channel state information(CSI) and can solve out all signals transmitted by sources. To align and neutralize interferences, the relay needs to retransmit the signals solved out by using proper transmitting vectors. The transmitting vectors in sources and relay are carefully designed to achieve higher sum-rate and simulation results will prove it.
Year
DOI
Venue
2014
10.1109/ICCChina.2014.7008354
Communications in China
Keywords
Field
DocType
antennas,cellular radio,radiofrequency interference,relay networks (telecommunication),vectors,csi,snr,base stations,cellular interference channels,channel state information,hexagon cells,neutralization scheme,relay-aided interference alignment,signal-to-noise ratio,transmitting vectors,interference alignment,neutralization,relay,multiple-in multiple-out (mimo),sum-rate,signal to noise ratio,wireless communication
Relay channel,Base station,Wireless,Telecommunications,Computer science,Signal-to-noise ratio,Computer network,Communication channel,Electronic engineering,Interference (wave propagation),Relay,Channel state information
Conference
Citations 
PageRank 
References 
1
0.36
11
Authors
4
Name
Order
Citations
PageRank
Yuquan Shu172.07
Qiang Wang210.70
Jianhua Zhang371691.23
Tao Sun416816.47