Transmission Strategies for Wireless Relay Networks Obtained from Linear Finite-Field Deterministic Models

In this paper we show how the recently proposed linear finite-field deterministic model (LFFM) can be used to design transmission strategies for the corresponding AWGN model of wireless relay networks. The transmission scheme in the AWGN model uses hierarchical modulation to transmit information on...

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Veröffentlicht in:IEEE transactions on communications Jg. 60; H. 8; S. 2167 - 2176
Hauptverfasser: Schrammar, Nicolas, Skoglund, Mikael
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York, NY IEEE 01.08.2012
Institute of Electrical and Electronics Engineers
Schlagworte:
Applied sciences
AWGN
Computational modeling
Cooperative systems
digital modulation
Exact sciences and technology
Information, signal and communications theory
Interference
Modulation, demodulation
Phase shift keying
physical layer
Relays
Signal and communications theory
Signal resolution
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
wireless networks
Finite field
Relay network
AWGN
Wireless telecommunication
Cooperative systems
Multiple layer
Routing
wireless networks
Upper bound
physical layer
Modulation
Deterministic model
digital modulation
Wireless network
ISSN:0090-6778, 1558-0857
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Beschreibung
Zusammenfassung:In this paper we show how the recently proposed linear finite-field deterministic model (LFFM) can be used to design transmission strategies for the corresponding AWGN model of wireless relay networks. The transmission scheme in the AWGN model uses hierarchical modulation to transmit information on multiple layers. We show that a transmission strategy in the LFFM can be translated to the AWGN model if it is coordinated, that is, if the amount of interference is limited in a certain way. We consider two types of coordination, full and partial, with different restrictions on the transmission scheme. In both cases we show that the rate in the AWGN model is at most a constant gap below the rate in the LFFM, which provides a link between the models. Closed-form upper bounds on the gap are derived based on the analysis of noise and interference forwarding. The bounds are evaluated numerically, and the dependency on the system parameters and the parameters of coordination are discussed. The trade-off between full and partial coordination and the corresponding parameters are illustrated.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2012.061412.110733