Cellular digital packet data network

Author

Saha, Debabrata ; Kay, Stanley E.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., George Washington Univ., Washington, DC, USA

Volume

46

Issue

3

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

697

Lastpage

706

Abstract

Cellular digital packet data (CDPD) is a data network designed to meet growing mobile data transmission needs. CDPD networks can stand alone or overlay on the cellular voice system by drawing radio resources from the pool of unused or free cellular analog voice channels. Detection as to whether a channel is free or occupied is mechanized through channel sniffers. Once the CDPD network seizes a channel, it continues to use the channel as long as it is free and leaves the channel within 40 ms of initiation of any voice activity on the channel-the CDPD network then hops to another free channel, if available. CDPD follows slotted nonpersistent digital-sense multiple access with collision detection (DSMA/CD). In addition, it performs channel-error detection and channel-error recovery. We investigate several aspects of the CDPD network, namely, the: (1) effect of CDPD on cellular voice and (2) the delay-throughput performance due to DSMA/CD with error detection

Keywords

Reed-Solomon codes; access protocols; cellular radio; data communication; delays; digital radio; error correction codes; error detection codes; land mobile radio; multi-access systems; packet radio networks; telecommunication channels; CDPD networks; DSMA/CD; Reed-Solomon code; cellular analog voice channels; cellular digital packet data network; cellular voice system; channel error detection; channel error recovery; channel sniffers; collision detection; delay-throughput performance; mobile data transmission; radio resources; slotted nonpersistent digital sense multiple access; voice activity; Cellular networks; Cities and towns; Data communication; Delay effects; Forward contracts; IP networks; Law enforcement; Mobile communication; Protocols; Vehicle safety;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.618195

Filename

618195