Title :
PIC Assisted IBDFE Based Iterative Spatial Channel Estimation with Intra and Inter-Cell Interference in SC-FDE System
Author :
Siddiqui, Fayyaz ; Danilo-Lemoine, Florence ; Falconer, David
Author_Institution :
Carleton Univ., Ottawa
Abstract :
In this paper, the issue of channel estimation in Single Carrier Frequency Domain Equalization (SC-FDE) uplink Space Division Multiple Access (SDMA) systems in the presence of intra and inter-cell interference is addressed. It is shown that in such an interference-prone system, a combination of orthogonal pilots, spatial processing and Iterative Channel Estimation (ICE) is effective. Adaptive Iterative Block Soft Decision based Feedback Equalizer (IBDFE) with Parallel Interference Cancellation (PIC) assisted Decision Feedback Iterative Channel Estimation is employed. It is shown that such a combination is a promising way to suppress uplink inter-user interference.
Keywords :
adaptive equalisers; cellular radio; channel estimation; decision feedback equalisers; frequency-domain analysis; interference suppression; iterative methods; space division multiple access; SC-FDE system; adaptive iterative block soft decision equalizer; decision feedback iterative channel estimation; inter-cell interference; intra-cell interference; parallel interference cancellation; single carrier frequency domain equalization; space division multiple access systems; spatial processing; uplink SDMA systems; Base stations; Channel estimation; Feedback; Frequency domain analysis; Frequency estimation; Ice; Interference cancellation; Interference suppression; Multiaccess communication; OFDM;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC-2007 Fall. 2007 IEEE 66th
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-0263-2
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2007.116
