Paper Info
Title
Interference suppression with physical-layer network coding and MIMO for multi-way channels
Abstract
Orthogonal techniques (such as TDMA - time division multiple access) are traditionally used when a set of terminals wants to exchange data and a relay is required when wireless terminals cannot communicate directly. This paper proposes two schemes to address multi-way channels when a set of terminals wants to exchange data. Both proposed schemes consist of a first phase based on virtual MIMO with lattice reduction-aided (LRA) detection at the relay, establishing a multiple access channel (MAC). Two new strategies are then proposed for the second (multicast) phase; one for single antenna terminals and another for multiple-input multiple-output (MIMO) terminals. The second strategy achieves interference suppression by successively combining physical layer network coding and MIMO detection (with LRA detectors also at the terminals). The paper assesses a 3 terminals network with a relay for which a TDMA-based scheme would require 6 time-slots, while the proposed strategy for MIMO terminals is able to exchange the information between all terminals using 2 time-slots only. This latter scheme is easily scalable to a higher number of terminals, and always able to accomplish the exchange of messages between all of them in just 2 time-slots, although limited by the number of antennas that the terminals can fit and also the MIMO processing complexity they can afford.
Year
DOI
Venue
2014
10.1109/SiPS.2014.6986065
Signal Processing Systems
Keywords
DocType
Citations 
MIMO communication,interference suppression,multicast communication,network coding,telecommunication channels,LRA detection,MAC,MIMO detection,MIMO processing complexity,MIMO terminals,TDMA,data exchange,first phase,interference suppression,lattice reduction-aided,multicast phase,multiple access channel,multiple-input multiple-output terminals,multiway channels,orthogonal techniques,physical layer network coding,physical-layer network coding,single antenna terminals,time division multiple access,virtual MIMO,wireless terminals,MIMO,Multi-way channel,interference cancelation,physical-layer network coding
Conference
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Flávio S. Brás100.34
Filipe E. Ferreira200.34
Francisco A. Monteiro3203.28
A. Rodrigues44114.77