IEICE TRANSACTIONS on Fundamentals
Performance Tradeoff in Multiuser Equalization for CDMA over Flat Channels
Summary :
We study the bit-error rate (BER) for different code lengths and number of users in CDMA system with linear minimum mean squared error (MMSE) and non-linear equalizations. We first show that for a fix channel and a fix number of users, BER of each symbol after linear equalization degrades with a decrease in the code length. Then, we prove that for a fix code length, the BER averaged over random channels improves with a decrease in the number of users. Furthermore, in the non-linear serial-interference cancellation (SIC) scheme, we prove analytically that the BER improves with each step of symbol cancellation for any channel not just at high signal-to-interference noise ratio (SINR) but at all range of SINR. Simulation results are presented to substantiate our theoretical findings.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E91-A No.8 pp.2008-2015
- Publication Date
- 2008/08/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1093/ietfec/e91-a.8.2008
- Type of Manuscript
- Special Section PAPER (Special Section on Signal Processing)
- Category
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Kok Ann Donny TEO, Shuichi OHNO, "Performance Tradeoff in Multiuser Equalization for CDMA over Flat Channels" in IEICE TRANSACTIONS on Fundamentals,
vol. E91-A, no. 8, pp. 2008-2015, August 2008, doi: 10.1093/ietfec/e91-a.8.2008.
Abstract: We study the bit-error rate (BER) for different code lengths and number of users in CDMA system with linear minimum mean squared error (MMSE) and non-linear equalizations. We first show that for a fix channel and a fix number of users, BER of each symbol after linear equalization degrades with a decrease in the code length. Then, we prove that for a fix code length, the BER averaged over random channels improves with a decrease in the number of users. Furthermore, in the non-linear serial-interference cancellation (SIC) scheme, we prove analytically that the BER improves with each step of symbol cancellation for any channel not just at high signal-to-interference noise ratio (SINR) but at all range of SINR. Simulation results are presented to substantiate our theoretical findings.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e91-a.8.2008/_p
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@ARTICLE{e91-a_8_2008,
author={Kok Ann Donny TEO, Shuichi OHNO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Performance Tradeoff in Multiuser Equalization for CDMA over Flat Channels},
year={2008},
volume={E91-A},
number={8},
pages={2008-2015},
abstract={We study the bit-error rate (BER) for different code lengths and number of users in CDMA system with linear minimum mean squared error (MMSE) and non-linear equalizations. We first show that for a fix channel and a fix number of users, BER of each symbol after linear equalization degrades with a decrease in the code length. Then, we prove that for a fix code length, the BER averaged over random channels improves with a decrease in the number of users. Furthermore, in the non-linear serial-interference cancellation (SIC) scheme, we prove analytically that the BER improves with each step of symbol cancellation for any channel not just at high signal-to-interference noise ratio (SINR) but at all range of SINR. Simulation results are presented to substantiate our theoretical findings.},
keywords={},
doi={10.1093/ietfec/e91-a.8.2008},
ISSN={1745-1337},
month={August},}
Copy
TY - JOUR
TI - Performance Tradeoff in Multiuser Equalization for CDMA over Flat Channels
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2008
EP - 2015
AU - Kok Ann Donny TEO
AU - Shuichi OHNO
PY - 2008
DO - 10.1093/ietfec/e91-a.8.2008
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E91-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2008
AB - We study the bit-error rate (BER) for different code lengths and number of users in CDMA system with linear minimum mean squared error (MMSE) and non-linear equalizations. We first show that for a fix channel and a fix number of users, BER of each symbol after linear equalization degrades with a decrease in the code length. Then, we prove that for a fix code length, the BER averaged over random channels improves with a decrease in the number of users. Furthermore, in the non-linear serial-interference cancellation (SIC) scheme, we prove analytically that the BER improves with each step of symbol cancellation for any channel not just at high signal-to-interference noise ratio (SINR) but at all range of SINR. Simulation results are presented to substantiate our theoretical findings.
ER -
English
