|
EPrints@IIT Delhi >
Faculty Research Publicatons >
Electrical Engineering >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2074/2067
|
| Title: | Performance analysis of space-time coding with imperfect channel estimation |
| Authors: | Garg, P
Mallik, R K
Gupta, H A |
| Keywords: | space-time coding
pilot code symbols
M/spl times/N perturbation matrix
zero-mean circular |
| Issue Date: | 2002 |
| Citation: | Personal Wireless Communications, IEEE International Conference on, 71 - 75p. |
| Abstract: | We analyze the error performance of a space-time coding system using M transmit and N receive antennas with imperfect channel estimation in Rayleigh fading. A least-squares estimate of the channel matrix is obtained by using a sequence of pilot code symbols. The estimate is found to be perturbed by an M/spl times/N perturbation matrix with correlated zero-mean circular Gaussian entries. An N/spl times/L code matrix is used to transmit N/spl times/1 code vectors over L symbol intervals. Using the characteristic function of the decision variable,. we derive a closed-form expression for the pairwise error probability. Numerical results show that the degradation in performance due to imperfect channel estimation can be compensated by increasing the number of receive antennas. |
| URI: | http://eprint.iitd.ac.in/dspace/handle/2074/2067 |
| Appears in Collections: | Electrical Engineering
|
Files in This Item:
| File |
Description |
Size | Format |
|---|
| gargper2002.pdf | | 67Kb | Adobe PDF | View/Open |
|
Show full item record
All items in DSpace are protected by copyright, with all rights reserved.
|
