André P. des Rosiers

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We evaluate truncated union bounds on the frameerror rate (FER) performance of space–time (ST) codes operating over the quasi-static fading channel and compare them with computer simulation results. We consider both ST trellis and block codes. We make the following contributions. For the case of ST trellis codes, we develop a general method, which we denote(More)
An iterative receiver is proposed for a wireless communication system employing multiple transmit and receive antennas. The transmitted symbol sequences are space-time encoded. By exploiting the inherent structure in the space-time encoded data sequence, the receiver is able to signi cantly improve the initial estimate of the unknown channel leading to(More)
In this paper, we evaluate truncated union bounds on the frame error rate (FER) performance of selected space-time codes for three di erent channel scenarios and compare them to results of computer simulation. Channels with AWGN, uncorrelated Rayleigh fading, and block Rayleigh fading are considered. To calculate the bounds, we use a superstate trellis(More)
We evaluate truncated union bounds on the frame error rate performance of space-time (ST) codes operating over the quasistatic fading channel and compare them to results of computer simulation. Both ST trellis and block codes are considered. We calculate these bounds by characterizing the set of codeword differences from a general expression for the exact(More)
This paper presents a theoretical analysis of the effect of constellation shaping in the transmitter on multimodulus (MMA) blind equalization in the receiver. Constellation shaping reduces average signal energy by a non-uniform distribution of constellation point utilization. Optimal transmit efficiency is achieved by a Gaussian distribution but many blind(More)
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