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

Author

Lam, Alex W. ; Sarwate, Dilip V.

Author_Institution

Coordinated Sci. Lab., Illinois Univ., Urbana-Champaign, IL, USA

Volume

38

Issue

6

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

875

Lastpage

888

Abstract

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

Keywords

digital radio systems; interference suppression; multi-access systems; packet switching; spread spectrum communication; Reed-Solomon error correcting code; TH/FHMA; frequency-hopping; multiple-access interference; multiple-access packet communications; noiseless channel; slot-synchronous systems; spread spectrum communication; subpackets; time-hopping; totally asynchronous systems; Bandwidth; Decoding; Error correction codes; Frequency conversion; Frequency domain analysis; Multiple access interference; Reed-Solomon codes; Societies; Spread spectrum communication; Throughput;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.57480

Filename

57480