The search functionality is under construction.

The search functionality is under construction.

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

The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.

Copy

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

Copy

@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 -