Voice/data channel access integration in TDMA digital cellular networks

Author

Li, Fayu ; Merakos, Lazaros F.

Author_Institution

CDSP Res. Center, Northeastern Univ., Boston, MA, USA

Volume

43

Issue

4

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

986

Lastpage

996

Abstract

The integration of digital data capabilities in the soon to be widely deployed digital cellular networks, which were primarily designed for voice communications, offers a low-cost way to capture the large and ever growing market for mobile data services. The authors propose and evaluate a multiaccess protocol for integrating data traffic in the E(nhanced)-TDMA voice system with digital speech interpolation, which is an enhancement of the emerging North American digital cellular standard. The proposed, protocol combines random access with slot reservation mechanisms to statistically multiplex data packets with speech spurt packets over the shared terminal-to-base air channel. The integrated protocol requires no modification in the voice access protocol used in the E-TDMA system, and can attain performance close to that of an ideal voice/data multiplexer. Furthermore, the protocol may enable multislot assignment per TDMA frame to match the throughput needs of individual data terminals, and can accommodate application-dependent data transmission priorities

Keywords

cellular radio; channel capacity; data communication; digital radio; land mobile radio; packet radio networks; packet reservation multiple access; telecommunication traffic; time division multiple access; voice communication; E-TDMA system; North American digital cellular standard; TDMA digital cellular networks; data packets; data terminals; data traffic; data transmission priorities; digital data capabilities; digital speech interpolation; mobile data services; multiaccess protocol; multislot assignment; performance; random access; shared terminal-to-base air channel; slot reservation mechanisms; speech spurt packets; throughput needs; voice access protocol; voice/data channel access integration; Access protocols; Interpolation; Land mobile radio cellular systems; Mobile communication; Multiplexing; Speech analysis; Speech enhancement; Telecommunication traffic; Throughput; Time division multiple access;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.330161

Filename

330161