Suppression of multiple narrowband interferers in a spread-spectrum communication system

被引：22

作者：

Carlemalm, C ^{[1
]}

Poor, HV

Logothetis, A

机构：

[1] Uppsala Univ, Div Signals & Syst, SE-75120 Uppsala, Sweden

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[3] Ericsson Radio Syst AB, Ericsson Res, SE-16480 Stockholm, Sweden

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2000年 / 18卷 / 08期

关键词：

EM algorithm; hidden Markov model; interference suppression; Kalman filter; spread-spectrum;

D O I：

10.1109/49.864002

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We consider the problem of estimating and suppressing many unknown independent and time-varying interferers in a spread-spectrum communication system. The interferers are assumed to be present in a wide frequency range. In order to detect, estimate, and track the interference, we use a bank of hidden Markov model filters operating in the frequency domain, The hidden Markov model filters' outputs are then used to suppress the existing interference, The computational complexity of our scheme is only linear in the number of interferers. The simulation studies show that our proposed novel schemes adapt quickly in tracking the time-varying nature of the interference.

引用

页码：1365 / 1374

页数：10

共 25 条

[1]

CALREMALM C, 1999, P 37 ANN ALL C COMM

[2] ONLINE IDENTIFICATION OF HIDDEN MARKOV-MODELS VIA RECURSIVE PREDICTION ERROR TECHNIQUES [J].

COLLINGS, IB ;

KRISHNAMURTHY, V ;

MOORE, JB .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (12) :3535-3539

[3] MAXIMUM LIKELIHOOD FROM INCOMPLETE DATA VIA EM ALGORITHM [J].

DEMPSTER, AP ;

LAIRD, NM ;

RUBIN, DB .

JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES B-METHODOLOGICAL, 1977, 39 (01) :1-38

[4] ADAPTIVE NARROW-BAND INTERFERENCE REJECTION IN A DS SPREAD-SPECTRUM INTERCEPT RECEIVER USING TRANSFORM DOMAIN SIGNAL-PROCESSING TECHNIQUES [J].

GEVARGIZ, J ;

DAS, PK ;

MILSTEIN, LB .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1989, 37 (12) :1359-1366

[5]

Glisic S., 1997, SPREAD SPECTRUM CDMA

[6]

HAYKIN S, 1983, COMMUNICATION SYSTEM

[7] ADAPTIVE ALGORITHMS FOR ESTIMATING AND SUPPRESSING NARROW-BAND INTERFERENCE IN PN SPREAD-SPECTRUM SYSTEMS [J].

KETCHUM, JW ;

PROAKIS, JG .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1982, 30 (05) :913-924

[8] Iterative and recursive estimators for hidden Markov errors-in-variables models [J].

Krishnamurthy, V ;

Logothetis, A .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1996, 44 (03) :629-639

[9] Adaptive nonlinear filters for narrow-band interference suppression in spread-spectrum CDMA systems [J].

Krishnamurthy, V ;

Logothetis, A .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1999, 47 (05) :742-753

[10] REJECTION OF PULSED CW INTERFERENCE IN PN SPREAD-SPECTRUM SYSTEMS USING COMPLEX ADAPTIVE FILTERS [J].

LI, LM ;

MILSTEIN, LB .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1983, 31 (01) :10-20

← 1 2 3 →