The low-cost packet radio
Article Abstract:
The low packet radio (LPR) consists of a digitally controlled direct sequence minimum shift keyed spread-spectrum radio and a microprocessor-based packet switch. Code changeable surface acoustic wave (SAW) matched filtering offers processing gain at burst symbol rates of 100k and 400k symbols per second in the presence of interference. Coherent recursive integration enhances synchronization performance, provides synchronous detection of the data, and serves the adaptive multipath accumulator. Forward error correction employing convolutional encoding and sequential decoding is incorporated at four different code rates for both burst symbol rates.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
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Wide-band packet radio technology
Article Abstract:
The goal of advanced packet radio technology is to utilize more effectively and provide greater protection to network systems. Network architectures routing and control strategies, as well as new signal processing concepts, devices, and circuit architectures, are being developed. Significant advances in the data- link physical layer technologies are discussed. A demonstration radio is described which utilizes advanced signal processing based on surface acoustic-wave (SAW) devices for high performance, near-100-MHz-bandwidth pseudonoise (PN) spread spectrum communication at data rates as high as 1.45 Mbits-sec.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
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The DARPA packet radio network protocols
Article Abstract:
The Defense Advanced Research Projects Agency's (DARPA) packet radio network (PRNET) provides computer network access to mobile hosts and terminals, and to computer communications in a mobile environment. Fully automated algorithms and protocols to organize, control, maintain, and move traffic through the packet radio are discussed. The mechanisms by which a packet radio automatically keeps track of a potentially ever-changing topology are illustrated, as well as the hardware capabilities of the packet radio that determine PRNET protocols.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1987
User Contributions:
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