Title :
Effect of nonideal channel and SINR estimation to performance of WCDMA with adaptive modulation and coding
Author :
Anttonen, Antti ; Moilanen, Ilkka ; Kotelba, Adrian ; Järvensivu, Pertti
Author_Institution :
VTT Electron., Oulu, Finland
Abstract :
The challenge of the adaptive modulation and coding (AMC) scheme is to make a decision when to switch between different modulation and coding scheme. This is difficult because the performance of the AMC system is very sensitive to channel quality estimation errors and other channel impairments. In this paper, block error rate (BLER) performance of the wideband code division multiple access (WCDMA) system using AMC techniques are studied with nonideal channel and signal-to-interference-and-noise ratio (SINR) estimation and with the presence of multiuser interference. Also, the throughput of the adaptive system is simulated.
Keywords :
adaptive codes; adaptive modulation; broadband networks; channel estimation; code division multiple access; error statistics; radiofrequency interference; SINR estimation; WCDMA; adaptive coding; adaptive modulation; adaptive system throughput; block error rate; channel quality estimation errors; multiuser interference; nonideal channel estimation; signal to interference noise ratio; wideband code division multiple access system; Adaptive systems; Error analysis; Estimation error; Interference; Modulation coding; Multiaccess communication; Signal to noise ratio; Switches; Throughput; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1260264
