Optimal detection of a BPSK signal with unsynchronized co-channel interferers

TitleOptimal detection of a BPSK signal with unsynchronized co-channel interferers
Publication TypeConference Paper
Year of Publication1999
AuthorsKwan, R., and C. Leung
Conference NameCommunications, 1999. ICC '99. 1999 IEEE International Conference on
Pagination73 -77 vol.1.
Keywordsadditive white Gaussian noise, AWGN channels, bit timing difference, BPSK signal, carrier phase, co-channel interferers, error statistics, frequency offset, interference (signal), interfering signal, minimum achievable bit error rates, optimal detection, performance sensitivity, phase estimation, phase shift keying, receiver models, receivers, signal detection, signal-to-interference ratio
Abstract

The problem of optimally detecting a desired BPSK modulated bit in the presence of another bit unsynchronized BPSK modulated interfering signal and additive white Gaussian noise is considered. Given certain information about the desired and interferer signals, the minimum achievable bit error rates for two types of receiver models are obtained and compared with that for a conventional matched filter. It is found that knowledge of the interferer signal's carrier phase is important when the signal-to-interference ratio is low. The effect on bit error rate of a frequency offset between the desired and interferer signals is also studied. Finally, performance sensitivity to errors in estimating the interferer signal's carrier phase and the bit timing difference between the desired and interferer signals is examined

URLhttp://dx.doi.org/10.1109/ICC.1999.767892
DOI10.1109/ICC.1999.767892

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