TY - GEN
T1 - Performance analysis of an adaptive two-stage partial PIC receiver
AU - Hsieh, Yu T.
AU - Wu, Wen-Rong
PY - 2007/12/1
Y1 - 2007/12/1
N2 - Partial parallel-interference-cancelation (PIC) is a well-known multiuser detection technique for DS/CMDA systems. Conventionally, partial-cancelation- factors (PCFs) are optimally derived and kept constant in a designated interval. Recently, a special kind of partial PIC was proposed. In the approach, PCFs are adaptively trained (chip-by-chip) using the least-mean-square (LMS) algorithm, and PCFs are updated with a bit-by-bit fashion. It has been shown that the adaptive partial PIC detector outperforms conventional partial PIC. Despite its good performance, performance analysis of the approach has not been explored yet. This paper is aimed to fill the gap by conducting the performance analysis of an adaptive two-stage partial PIC detector. We first analyze optimal weights (i.e., PCFs), weight error means, and weight error variances. Based on these results, we derive the output mean-squared-error (MSE) and bit-error-rate (BER) for each user. Simulation results indicates that our analytical results highly agree with empirical ones.
AB - Partial parallel-interference-cancelation (PIC) is a well-known multiuser detection technique for DS/CMDA systems. Conventionally, partial-cancelation- factors (PCFs) are optimally derived and kept constant in a designated interval. Recently, a special kind of partial PIC was proposed. In the approach, PCFs are adaptively trained (chip-by-chip) using the least-mean-square (LMS) algorithm, and PCFs are updated with a bit-by-bit fashion. It has been shown that the adaptive partial PIC detector outperforms conventional partial PIC. Despite its good performance, performance analysis of the approach has not been explored yet. This paper is aimed to fill the gap by conducting the performance analysis of an adaptive two-stage partial PIC detector. We first analyze optimal weights (i.e., PCFs), weight error means, and weight error variances. Based on these results, we derive the output mean-squared-error (MSE) and bit-error-rate (BER) for each user. Simulation results indicates that our analytical results highly agree with empirical ones.
UR - http://www.scopus.com/inward/record.url?scp=50249112635&partnerID=8YFLogxK
U2 - 10.1109/ISTMWC.2007.4299088
DO - 10.1109/ISTMWC.2007.4299088
M3 - Conference contribution
AN - SCOPUS:50249112635
SN - 1424416620
SN - 9781424416622
T3 - 2007 16th IST Mobile and Wireless Communications Summit
BT - 2007 16th IST Mobile and Wireless Communications Summit
T2 - 2007 16th IST Mobile and Wireless Communications Summit
Y2 - 1 July 2007 through 5 July 2007
ER -