* denoting the binary entropy function and denoting the uncoded error probability. The goal of this paper is to extend such relationship to channels where the connection between uncoded error probability and channel capacity is less obvious. A first step into that direction is the following lemma proven in [1]: Lemma 1: Consider a memoryless weakly symmetric1 channel with binary input and outpu...

Uncoded bit error probability with maximum-likelihood detection and channel capacity is derived analytically for binary signaling on the dual antenna array channel with correlated fading in the large system limit. The example of fading correlation due to poor scattering is analyzed in greater detail. In case of poor scattering (or high load), a waterfall behavior of the uncoded bit error probab...

The combination of Walsh coding with a layered space-time architecture is investigated. This provides a system with flexible coding rates and low complexity linear decoding. The codes allow exploitation of the diversity of the multiple antenna channel while allowing code rates up to 1, while still providing a performance improvement over an uncoded system. Simulations provide comparison with re...

A novel adaptive Bayesian receiver for signal detection and decoding in fading channels with known channel statistics is developed; it is based on the sequential Monte Carlo methodology that recently emerged in the field of statistics. The basic idea is to treat the transmitted signals as “missing data” and to sequentially impute multiple samples of them based on the observed signals. The imput...

| On Gaussian multiple{access channels a penalty in power eeciency is to be paid if total transmission rate is higher than 1 bit/s/Hz per dimension. This usually results from the need for higher order modulation schemes required to maintain or-thogonality of all users' signal waveforms. In this paper , we show that keeping binary modulation and accepting some multiple{access interference, is a ...

Due to the rapidly increasing data speed requirement, it has become essential to smartly utilize the available frequency spectrum. In wireless communications systems, channel quality parameters are often used to enable resource allocation techniques that improve system capacity and user quality. The uncoded bit or symbol error rate (SER) is specified as an important parameter in the second and ...

In [Scholtz (1993)], an ultra-wide bandwidth time-hopping spread-spectrum code division multiple-access system employing a binary PPM signaling has been introduced, and its performance was obtained based on a Gaussian distribution assumption for the multiple-access interference. In this paper, we begin first by proposing to use a practical low-rate error correcting code in the system without an...

MIMO-OFDM systems with pre-filtering as well as bit and power loading have gained a lot of interest recently. These systems are based on theoretically optimal solutions maximizing the uncoded throughput and constraining the maximum uncoded BER. In this paper, we extend the existing frameworks to coded systems with bit and packet error ratio adaptation. We evaluate the performance of this approa...

Uncoded bit error probability with maximum-likelihood detection and channel capacity is derived for binary signaling on the dual antenna array channel with constrained scattering in the large system limit making use of the replica method. Examples are discussed in case of equal power for all propagation paths. In case of poor scattering (or high load), a waterfall behavior of the uncoded bit er...