Time-hopping and frequency-hopping multiple-access packet communications

Time-hopping and frequency-hopping multiple-access (TH/FHMA) packet communication systems are proposed and investigated. In TH/FHMA communication systems, a message packet is encoded into several subpackets via a Reed-Solomon error correcting code. The subpackets are transmitted over the channel usi...

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Bibliographic Details
Published in:IEEE transactions on communications 1990-06, Vol.38 (6), p.875-888
Main Authors: Lam, A.W., Sarwate, D.V.
Format: Article
Language:English
Subjects:
Applied sciences
Bandwidth
Decoding
Error correction codes
Exact sciences and technology
Frequency conversion
Frequency domain analysis
Multiple access interference
Radiocommunication specific techniques
Radiocommunications
Reed-Solomon codes
Societies
Spread spectrum communication
Telecommunications
Telecommunications and information theory
Throughput
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Summary:Time-hopping and frequency-hopping multiple-access (TH/FHMA) packet communication systems are proposed and investigated. In TH/FHMA communication systems, a message packet is encoded into several subpackets via a Reed-Solomon error correcting code. The subpackets are transmitted over the channel using time-hopping and frequency-hopping patterns. It is assumed that the channel is noiseless and the side information is perfect so that all subpacket collisions can be correctly detected. Slot-synchronous and totally asynchronous TH/FHMA systems are analyzed in detail, and they are shown to have excellent throughputs at small packet erasure rates. Various time-hopping techniques which significantly reduce the multiple-access interference are developed.< >
ISSN:0090-6778
1558-0857
DOI:10.1109/26.57480