سال انتشار: ۱۳۸۶

محل انتشار: پانزدهیمن کنفرانس مهندسی برق ایران

تعداد صفحات: ۴

نویسنده(ها):

Mehdi Seyfi – Dept. of Electrical Engineering, Engineering School, Shiraz University, p.c
Mehrzad Biguesh – Dept. of Electrical Engineering, Engineering School, Shiraz University, p.c

چکیده:

In wireless communications, the channel between transmitter and receiver is dynamic thus for signal detection the receiver has to be periodically in- formed about the channel between the transmitter and the receiver. This paper partially discusses about our pro- posed geometrical model forchannel matrix in a multiple-input multiple-output (MIMO) communicationsystem. Then, assuming that the channel matrix is slowly fading, we propose an auto- regressive (AR) model for channel matrix at each time instant. Based on the introduced model, an LMS-like procedure forhannel tracking is used to inclease the time period required for channel training and, in turn, increasing the late of data transmission. Ourimulation experiments indicate the efficiency of the proposed method for channel matrix tracking