Exact error performance of space-time block coding with channel estimation

Consider a wireless communication system in flat fading with N transmit and M receive antennas using space-time block coding, where N /spl times/ 1 code vectors are transmitted over L symbol intervals resulting in an N /spl times/ L code matrix. A least-squares estimate as well as a minimum mean-squ...

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Bibliographic Details
Main Authors: Garg, P., Mallik, R.K., Gupta, H.M.
Format: Conference Proceeding
Language:English
Subjects:
Block codes
Channel estimation
Decoding
Error probability
Fading
Receiving antennas
Signal to noise ratio
Space technology
Vectors
Wireless communication
Online Access:Request full text
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Summary:Consider a wireless communication system in flat fading with N transmit and M receive antennas using space-time block coding, where N /spl times/ 1 code vectors are transmitted over L symbol intervals resulting in an N /spl times/ L code matrix. A least-squares estimate as well as a minimum mean-square estimate of the channel matrix is obtained from the sequence of L/sub p/ pilot code vectors. For the case of linear orthogonal codes with N = L over constant envelope constellations, we obtain an expression for the exact decoding error probability. We also find the coding gain for high average signal-to-noise ratio per diversity branch.
ISSN:1550-3607
1938-1883
DOI:10.1109/ICC.2005.1494416