Construction and analysis of real-time relay for efficient antenna sharing

In this thesis, I present and analyze a real-time intermediate node that promotes low latency transmission of information between two endpoints. Traditional relaying via digital decoding and retransmission has inherent time delay due to limitations in processing requirements at the transceiver, however this delay can be minimized by high speed analog amplification and forwarding rather than by processing the content of the information packets. I use a heterodyne system where the radio signal from the originating node is translated to a new frequency band to retransmit. Latency measurements of less than one microsecond and signal-to-noise ratio loss of 2.3 dB are found. Comparisons with a time domain multiplexing digital relaying scheme show that analog relaying may be advantageous in applications demanding low latency.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2004

Author dc:creator

• Halbig, Jeffrey S. (Jeffrey Stephan), 1981-

Advisor dc:contributor.advisor

• Andrew Lippman.

• Electrical Engineering and Computer Science.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/28400

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/28400