Title :
Flow control for packet data in an integrated wireless access network
Author :
Rabbath, Jean-Pierre ; Morgera, Salvatore ; Mermelstein, P.
Author_Institution :
Wireless Networks, Nortel, Verdum, Que., Canada
Abstract :
We consider flow control in the downlink direction for a microcellular CDMA system carrying integrated packet level-data and voice services with the objective of providing maximum traffic capacity without service degradation due to overload. We present in this paper a flow control technique that regulates admitted calls based on the prediction of the total transmitted power requirements over the next packet transmission interval. The number of packets permitted to transmit is a function of the probability of exceeding the maximum power value. This probability is estimated from the autocovariance function of the transmitted power under maximally loaded traffic conditions. Outage is avoided by matching the number of simultaneously transmitted packets to the available transmitted power budget
Keywords :
adaptive control; code division multiple access; covariance analysis; integrated voice/data communication; microcellular radio; packet radio networks; predictive control; radio access networks; radio links; telecommunication congestion control; telecommunication traffic; adaptive predictive flow control; admitted call regulation; autocovariance function; downlink direction; integrated data/voice services; integrated wireless access network; maximally loaded traffic conditions; maximum traffic capacity; microcellular CDMA system; outage; packet data; packet transmission interval; probability; total transmitted power; transmitted power budget; Admission control; Business; Communication system traffic control; Data communication; Degradation; Downlink; Intelligent networks; Multiaccess communication; Rayleigh channels; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.776692
