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Title: Narrowband PPM semi-'blind' spatial-rake receiver & co-channel interference suppression
Authors: Wong, KT 
Issue Date: 2007
Publisher: Wiley-Blackwell
Source: European transactions on telecommunications, 2007, v. 18, no. 2, p. 193-197 How to cite?
Journal: European transactions on telecommunications 
Abstract: Among the open-literature on pulse-position-modulation (PPM) radiowave wireless communications, this work is first to advance a semi-'blind'/'blind' spatial-rake receiver with interference-rejection capability. This proposed adaptive 'smart antennas' detector uses the signal-of-interest's (SOI) earlier decoded information-symbols to segment earlier collected data into two data-groups: one data-group with the SOI and co-channel-interference and noise, with the other data-group containing only the latter two. These two data-groups' spatial-correlation matrices' generalised-eigenvector maximises the 'blind' spatial beamformer's output signal-to-interference-and-noise ratio (SINR) without prior knowledge of (1) the multi-access user interferers' (MAUI) arrival directions, delays nor powers, (2) the signal-of-interest's (SOI) spatial signature at the receiving sensor-array‡, and (3) the mobile's receiving-antennas' nominal/actual array-geometry and gain/phase responses. This proposed scheme is semi-'blind' because it needs a pilot sequence from the SOI.
ISSN: 1124-318X
DOI: 10.1002/ett.1147
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