Ding, Z. and Ward, D. and Chin, W. (2006) A general scheme for equalization of space-time block-coded systems with unknown CSI. IEEE Transactions on Signal Processing, 54 (7). pp. 2737-2746. ISSN 1053-587XFull text not available from this repository.
Recently, space-time block codes (STBCs) have gained much attention as an effective transmit diversity technique to increase the capacity of wireless communication systems. In this paper, we consider a general technique for direct equalization of space-time block-coding systems with unknown channel state information (CSI). This technique is suitable for several existing hybrid STBC schemes, such as STBC/orthogonal-frequency-division multiplexing (STBC-OFDM) and STBC/code-division multiple access (STBC-CDMA). We show that by exploiting the redundancy in the structure of STBC, a zero-forcing equalizer can be constructed without channel estimation. The conditions for the identifiability of the zero-forcing equalizer are also derived to ensure correct equalization. To further improve the performance of the proposed method, a new iterative algorithm is developed by incorporating the finite alphabet property of information symbols. Simulation results show that the proposed algorithms can outperform comparative schemes in most simulation conditions.
|Journal or Publication Title:||IEEE Transactions on Signal Processing|
|Uncontrolled Keywords:||DCS-publications-id ; art-909 ; DCS-publications-credits ; coding-fa ; DCS-publications-personnel-id ; 147|
|Subjects:||Q Science > QA Mathematics > QA75 Electronic computers. Computer science|
|Departments:||Faculty of Science and Technology > School of Computing & Communications|
|Deposited By:||Dr Zhiguo Ding|
|Deposited On:||18 Jan 2008 16:54|
|Last Modified:||24 Jan 2017 01:56|
Actions (login required)