Quantize-map-forward (QMF) relaying: an experimental study

Authors:
Melissa Duarte;Ayan Sengupta;Siddhartha Brahma;Christina Fragouli;Suhas Diggavi
Affiliations:
Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland;Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland;Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland;Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne, Switzerland;University of California Los Angeles (UCLA), Los Angeles, USA
Venue:
Proceedings of the fourteenth ACM international symposium on Mobile ad hoc networking and computing
Year:
2013

Citing 11
Cited 0

Fundamentals of wireless communication

Fundamentals of wireless communication
Cooperative network implementation using open-source platforms

IEEE Communications Magazine
DAC: distributed asynchronous cooperation for wireless relay networks

INFOCOM'10 Proceedings of the 29th conference on Information communications
Implementation and evaluation of cooperative communication schemes in software-defined radio testbed

INFOCOM'10 Proceedings of the 29th conference on Information communications
SourceSync: a distributed wireless architecture for exploiting sender diversity

Proceedings of the ACM SIGCOMM 2010 conference
Improving Access Point Association Protocols through Channel Utilization and Adaptive Switching

MASS '11 Proceedings of the 2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems
Capacity theorems for the relay channel

IEEE Transactions on Information Theory
Wireless Network Information Flow: A Deterministic Approach

IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications

IEEE Journal on Selected Areas in Communications
CoopMAC: A Cooperative MAC for Wireless LANs

IEEE Journal on Selected Areas in Communications
Noisy Network Coding

IEEE Transactions on Information Theory

Quantified Score

Hi-index	0.00

Visualization

Abstract

We present the design and experimental evaluation of a wireless system that exploits relaying in the context of WiFi. We opt for WiFi given its popularity and wide spread use for a number of applications, such as smart homes. Our testbed consists of three nodes, a source, a relay and a destination, that operate using the physical layer procedures of IEEE802.11. We deploy three main competing strategies that have been proposed for relaying, Decode-and-Forward (DF), Amplify-and-Forward (AF) and Quantize-Map-Forward (QMF). QMF is the most recently introduced of the three, and although it was shown in theory to approximately achieve the capacity of arbitrary wireless networks, its performance in practice had not been evaluated. We present in this work experimental results---to the best of our knowledge, the first ones---that compare QMF, AF and DF in a realistic indoor setting. We find that QMF is a competitive scheme to the other two, offering in some cases up to 12% throughput benefits and up to 60% improvement in frame error-rates over the next best scheme.