Distributed randomized space-time coding for HF transmission

Matthew Sharp, Anna Scaglione, Stefano Galli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Scopus citations


We propose an approach that enables increased range and throughput in over-the-horizon (OTH) High Frequency (HF) communications using a novel physical layer node cooperation scheme. By exploiting multiple (and sufficiently spaced apart) lowpowered man-portable radios in a collaborative fashion, it will be possible to obtain diversity gains similar to Multiple Input Multiple Output (MIMO) systems and, therefore, to maximize link reliability, to increase communication range for a given throughput and power or, to increase throughput for a given range and power. Our schemes are based on randomized space-time coding in the framework of distributed cooperative networks. In this paper, we compare single and multi-carrier transmission schemes, and we show that, by increasing the number of nodes while keeping the total transmit power fixed, we can approach the diversity obtainable by conventional MIMO schemes. We also observe that the Time-Reversal Space-Time Block Coding scheme (TR-STBC) performs the best among the three schemes we compare. The proposed architecture will provide power savings and diversity gains that will increase the reliability of OTHHF communications in the absence of terrestrial infrastructure.

Original languageEnglish (US)
Title of host publicationMilitary Communications Conference 2006, MILCOM 2006
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)1424406188, 9781424406180
StatePublished - 2006
Externally publishedYes
EventMilitary Communications Conference 2006, MILCOM 2006 - Washington, D.C., United States
Duration: Oct 23 2006Oct 25 2006

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM


OtherMilitary Communications Conference 2006, MILCOM 2006
Country/TerritoryUnited States
CityWashington, D.C.

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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