A pilot symbol assisted interference cancellation scheme for an asynchronous DS/CDMA system

Nesper, O.; Ho, P.

doi:10.1109/glocom.1996.591881

Cited by 4 publications

(3 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of pilot symbols is a well-known method for obtaining good channel impulse response estimates in single-user systems, e.g., [7]- [11]. For the case of multiuser systems, pilotbased channel estimation has been studied extensively only for CDMA, e.g., [12] and [13], where processing gain suppresses interference in the channel estimator. However, little is known about multiuser channel estimation in TDMA systems.…”

Section: Introductionmentioning

confidence: 99%

Multiuser channel estimation for detection of cochannel signals

Grant

Cavers

2001

IEEE Trans. Commun.

View full text Add to dashboard Cite

Estimation of the channel impulse responses of multiple cochannel users is a key requirement of all multiuser detection and interference cancellation techniques, though little attention has been paid to the subject in the context of time-divison multiple-access (TDMA) systems. This paper addresses a pilot-based MMSE technique for multiuser channel estimation in a TDMA system, and makes two key contributions. Firstly, it allows for time variation of the channels within and between training sequences, an essential feature in a multiuser environment even at moderate fading rates. Secondly, it addresses the design of training sequences for the multiple cochannel users.

show abstract

Section: Introductionmentioning

confidence: 99%

Multiuser channel estimation for detection of cochannel signals

Grant

Cavers

2001

IEEE Trans. Commun.

View full text Add to dashboard Cite

show abstract

“…Due to the precursor and postcursor inserted during each training period, consists only of symbols from the th user's training sequence and no unknown symbols from the adjacent data sequences. Using (9), (13), (24), and (25), the th component of can be written as (26) where is the th row of the data matrix and . With this expression in hand, the elements of the matrices and in (18) may be easily determined.…”

Section: Details Of Optimal Estimatormentioning

confidence: 99%

“…For the case of multiuser systems, pilotbased channel estimation has been studied extensively only for CDMA, e.g., [12] and [13], where processing gain suppresses interference in the channel estimator. However, little is known about multiuser channel estimation in TDMA systems.…”

Section: Introductionmentioning

confidence: 99%

Multiuser channel estimation for detection of cochannel signals

Grant

Cavers²

1999 IEEE International Conference on Communications (Cat. No. 99CH36311)

View full text Add to dashboard Cite

Abstract-Estimation of the channel impulse responses of multiple cochannel users is a key requirement of all multiuser detection and interference cancellation techniques, though little attention has been paid to the subject in the context of time-divison multiple-access (TDMA) systems. This paper addresses a pilot-based MMSE technique for multiuser channel estimation in a TDMA system, and makes two key contributions. Firstly, it allows for time variation of the channels within and between training sequences, an essential feature in a multiuser environment even at moderate fading rates. Secondly, it addresses the design of training sequences for the multiple cochannel users.

show abstract

A reference symbol assisted interference cancelling hybrid receiver for an asynchronous DS/CDMA system

Nesper

Ho²

Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications

View full text Add to dashboard Cite

A pilot symbol assisted interference cancellation scheme for an asynchronous DS/CDMA system

Cited by 4 publications

References 11 publications

Multiuser channel estimation for detection of cochannel signals

Multiuser channel estimation for detection of cochannel signals

Multiuser channel estimation for detection of cochannel signals

A reference symbol assisted interference cancelling hybrid receiver for an asynchronous DS/CDMA system

Contact Info

Product

Resources

About