Title :
Adaptive error control for CDMA packet radio networks
Author :
Ye, Zhong ; Saulnier, Gary J. ; Medley, Michael J.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The throughput performance of a CDMA packet radio network using adaptive processing gain and forward error correction (FEC) coding is analyzed. The processing gain and/or FEC coding rate of the signal is adaptively controlled based on the number of active users in the network. Network throughput performance as a function of offered load is presented for a number of different coding schemes and it is shown that the use of adaptation can significantly improve the throughput performance under all loading conditions. The trade-off between spreading gain and FEC coding is studied and a channel monitoring algorithm is presented
Keywords :
adaptive codes; code division multiple access; error correction codes; forward error correction; packet radio networks; spread spectrum communication; CDMA packet radio networks; FEC coding; active users number; adaptive error control; adaptive processing gain; channel monitoring algorithm; coding schemes; forward error correction coding; offered load; throughput performance; Adaptive control; Adaptive systems; Error correction; Forward error correction; Multiaccess communication; Packet radio networks; Performance analysis; Performance gain; Programmable control; Throughput;
Conference_Titel :
MILCOM 2000. 21st Century Military Communications Conference Proceedings
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-6521-6
DOI :
10.1109/MILCOM.2000.904934
