Title :
Transmission parameter selection in an adaptive packet-radio network
Author :
Bausbacher, Peter E. ; Kearns, Jeffrey L.
Author_Institution :
Collins Def. Commun., Rockwell Int., Palo Alto, CA, USA
Abstract :
Packet-radio networks (PRNs) can experience variations in radio-channel quality due to nodal mobility, network congestion, and adversarial behavior. For this reason, PRNs must be designed with adaptivity in mind. A link-layer protocol termed the transmission parameter selection algorithm (TPSA)-that provides real-time, distributed control of radio transmission parameters including power level, data rate, and forward error correction (FEC) rate is discussed. TPSA design methodology is presented, including the implementation details of a specific TPSA designed with the single goal of maximizing throughput in a direct-sequence spread-spectrum network. The related topic of link quality assessment is discussed, with attention given to a technique which infers link quality from the presence or absence of acknowledgments. Finally, suggestions for TPSA interaction with routing algorithms are offered
Keywords :
adaptive systems; distributed control; packet switching; protocols; radio networks; spread spectrum communication; telecommunications control; FEC; adaptive packet-radio network; data rate; direct-sequence spread-spectrum network; distributed control; forward error correction; link quality assessment; link-layer protocol; network congestion; nodal mobility; power level; radio transmission parameters; radio-channel quality; real time control; routing algorithms; throughput; transmission parameter selection algorithm; Adaptive systems; Design methodology; Distributed control; Forward error correction; Intelligent networks; Protocols; Quality assessment; Routing; Spread spectrum communication; Throughput;
Conference_Titel :
Tactical Communications Conference, 1990. Vol.1. Tactical Communications. Challenges of the 1990's, Proceedings of the
Conference_Location :
Fort Wayne, IN
DOI :
10.1109/TCC.1990.177795
