Precoded DOSTBC over Rayleigh channels
Research Letters in Communications - Regular issue
Performance of optimum and suboptimum receivers for space-time coded systems in correlated fading
IEEE Transactions on Communications
IEEE Transactions on Communications
On the outage capacity of a practical decoder accounting for channel estimation inaccuracies
IEEE Transactions on Communications
Maximum likelihood receivers for space-time coded MIMO systems with Gaussian estimation errors
IEEE Transactions on Communications
Analysis on effective SNR loss of space-time block coded MIMO system with channel estimation error
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
IEEE Transactions on Wireless Communications
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We analyze the error performance of a space-time coding system using N transmit and M receive antennas with imperfect channel estimation in flat Rayleigh fading. A least-squares estimate of the channel matrix is obtained by using a sequence of pilot code vectors. The estimate is found to be perturbed by an M×N perturbation matrix with zero-mean circular Gaussian entries. Using the characteristic function of the decision variable, we derive a closed-form expression for the pairwise error probability (PEP). From the same expression, the PEP in case of perfect channel estimation is also obtained. Numerical results show the degradation in performance due to imperfect channel estimation that can be compensated by increasing the number of receive antennas.