This paper presents low power architectures using conventional and on-line arithmetic to accelerate detection in mobile communication receivers. We identify the potential application of on-line arithmetic for detection in mobile communication systems. We develop innovations in on-line arithmetic modules for better integration with conventional arithmetic systems. We explore a suite of tradeoffs...

A theory for the signal-to-noise ratio (SNR) of optical direct-detection receivers employing return-to-zero (RZ) coding (and possibly optical preamplification) is developed. The results are valid for both signal-independent noise limited and signaldependent noise limited receivers, as well as for arbitrary optical pulse shapes and receive filter characteristics. Even if the same receiver bandwi...

With the development of digital processing technology, digital receivers have wide applications in radar systems as well as wireless communications systems. In the digital receivers with intermediate frequency (IF) sampling technique, the analog-to-digital converter (ADC) directly converts IF signal into digital format prior to detection. And the digital signal processor (DSP) using Hilbert tra...

As multimedia applications proliferate, there is a desire to provide wireless transport to information streams with inherently different data rates. Direct-sequence code division multiple access (DS-CDMA) is a natural multiple-access strategy for multiple data-rate systems. Recent work on multirate DSCDMA receivers has focused on signal-processing techniques, which detect all users of all rates...

The direct sequence spread spectrum (DS-SS) transmission system offers a promising solution to an overcrowded frequency spectrum amid growing demand for mobile and personal communication services. The overlay of DS-SS signals on existing narrowband users implies strong interference for DS-SS systems. In this paper, it will be shown how the application of linear and non-linear estimators in the ...

In this paper, we propose linear predictive receivers for phaseuncertain channels. These receivers are attractive from a conceptual viewpoint because they generalize previous solutions based on noncoherent sequence detection. On the practical side, the proposed algorithms lend themselves to the implementation of adaptive receivers capable of copying with possible time variations of the statisti...

This paper looks at the linear reception of spatially multiplexed signals across MIMO channels. We address the problem of robustness in the presence of detrimental effects such as correlation and Ricean components. We consider the error-rate performance of MIMO linear filters, as these can be used in purely linear receivers, or as part of each stage in successive interference canceling (SIC) re...