A signaling and decision scheme with application to multiple-access communication
Abstract
A decision directed detection method using a quasi-orthogonal set of signaling waveforms for detection-signals in the presence of random access interference is presented. In this method the spectra of a number of users in a random access scheme are allowed to overlap and decision is made by sequential elimination of interference. This method can achieve a larger throughput than that of frequency division multiple access. Performance of this detection scheme is evaluated in terms of probability of error and error propagation. This proposed detector outperforms the optimal linear detector for the same signal set in terms of signal-to-noise ratio needed for a given probability of error and data rate per unit bandwidth. This scheme may have application wherever a number of users need to communicate over a common channel e.g., tactical military communication system.
- Publication:
-
ICC 1981; International Conference on Communications, Volume 2
- Pub Date:
- 1981
- Bibcode:
- 1981icc.....2...36L
- Keywords:
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- Access Control;
- Frequency Division Multiple Access;
- Radio Frequency Interference;
- Random Access;
- Signal Detection;
- Bandwidth;
- Error Analysis;
- Military Technology;
- Multiplexing;
- Signal To Noise Ratios;
- Waveforms;
- Communications and Radar