Performance of uncoordinated and packetized code time division multiple access, and spread ALOHA

Author

Loher, Urs ; Ruprecht, Jurg

Author_Institution

Berne, Swisscom AG, Berne, Switzerland

Volume

5

fYear

1998

fDate

1998

Firstpage

2532

Abstract

Uncoordinated and packetized code time division multiple access (CTDMA) is presented. It is shown that the only difference to spread ALOHA is the demodulation technique applied in the receiver. The capacity of uncoordinated and packetized CTDMA is then determined and evaluated. In particular, it is shown that CTDMA outperforms spread ALOHA, i.e., that a linear inverse filter outperforms a matched filter in terms of single-user capacity

Keywords

access protocols; code division multiple access; demodulation; filtering theory; inverse problems; linear phase filters; matched filters; multiuser channels; packet switching; spread spectrum communication; time division multiple access; demodulation technique; linear inverse filter; matched filter; packetized code time division multiple access; receiver; single-user capacity; spread ALOHA; spread spectrum code division multiple access; uncoordinated CTDMA; Electromagnetic compatibility; Electromagnetic compatibility and interference; Frequency conversion; Matched filters; Mobile communication; Multiaccess communication; Nonlinear filters; Peak to average power ratio; Spread spectrum communication; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE

Conference_Location

Sydney,NSW

Print_ISBN

0-7803-4984-9

Type

conf

DOI

10.1109/GLOCOM.1998.776446

Filename

776446