Interference resistant blind acquisition and channel estimation for CDMA communication systems

Author

Van Veen, Barry D. ; Sayeed, Akbar M. ; Onggosanusi, Eko N.

Author_Institution

Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA

Volume

5

fYear

2000

fDate

2000

Firstpage

2913

Abstract

The time scale over which a channel is observed determines whether a deterministic or statistical characterization is appropriate. We show that the channel estimation algorithm of Tsatsanis and Xu (see Proc. 31st Conf. Inform. Sci. Systems (CISS) John Hopkins Univ., Baltitmore, MD, p.724-29, 1997) and the acquisition algorithm of Sayeed and Aazhang (see Proc. 91st Conf. Inform. Sci. Systems (CISS) Princeton, NJ, 1998) share a common MMSE formulation. They differ only in the assumption of the channel characterization. From this observation we develop a new blind MMSE interference resistant algorithm for both timing acquisition and channel estimation that is applicable to both deterministic and statistical channel models. Simulations illustrate the effectiveness of the new method

Keywords

code division multiple access; least mean squares methods; multipath channels; multiuser channels; parameter estimation; radiofrequency interference; signal representation; statistical analysis; timing; CDMA communication systems; MMSE formulation; acquisition algorithm; blind MMSE interference resistant algorithm; channel characterization; channel estimation algorithm; deterministic channel model; interference resistant blind acquisition; interference resistant blind channel estimation; multipath delay; signal representation; simulations; statistical channel model; timing acquisition; Channel estimation; Delay estimation; Drives; Finite impulse response filter; Interference; Multiaccess communication; RAKE receivers; Resistance; Timing; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on

Conference_Location

Istanbul

ISSN

1520-6149

Print_ISBN

0-7803-6293-4

Type

conf

DOI

10.1109/ICASSP.2000.861143

Filename

861143