A comparison of Interference Cancellation scheme based on QR decomposition and based on MMSE for Space Time Block code in multi-rate multi-user Systems

Author

Alimgeer, K.S. ; Naveed, A. ; Chaudhry, M.A.S. ; Qurashi, I.M.

Author_Institution

Dept. of Electr. Eng., CIIT

fYear

2006

fDate

23-24 Dec. 2006

Firstpage

79

Lastpage

83

Abstract

In this paper, interference cancellation (IC) schemes are compared with the inverse channel detection scheme for space-time block coded multi-rate multi-user systems. One of the interference cancellation scheme is based on QR decomposition interference suppression combined with Interference cancellation and the other scheme is based on minimum mean square estimation (MMSE) combined with interference cancellation. Computationally inverse channel detection scheme is much better than the interference cancellation scheme but its performance is poorer than the other two.

Keywords

block codes; interference suppression; least mean squares methods; multiuser detection; space-time codes; MMSE; QR decomposition; interference cancellation scheme; inverse channel detection scheme; minimum mean square estimation; multirate multiuser systems; space time block code; Bit error rate; Block codes; Interference cancellation; Interference suppression; Matrix decomposition; Quality of service; Receiving antennas; Transmitting antennas; Vectors; Wireless communication; MMSE; QR decomposition; inverse channel scheme; multi-rate; multi-user; space time block codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Multitopic Conference, 2006. INMIC '06. IEEE

Conference_Location

Islamabad

Print_ISBN

1-4244-0795-8

Electronic_ISBN

1-4244-0795-8

Type

conf

DOI

10.1109/INMIC.2006.358140

Filename

4196383