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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ivkovic, G. Spasojevic, P. Seskar, I. |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of ECE, Rutgers Univ., New Brunswick, NJ (Ivkovic, G.; Spasojevic, P.; Seskar, I.) |
| Abstract | We consider a scenario with multiple radio sources performing packet based transmissions. The sources belong to heterogeneous networks and their signals may overlap in time and frequency. Each source is characterized by its power spectral density and an on/off activity sequence. A network of sensors performs measurements, where each sensor computes spectrogram of the received signal with certain time and frequency resolution. Spectrograms from different sensors are collected and arraigned in a three-way array, whose three dimensions correspond to space, time, and frequency indices. We show that, under certain rank conditions of the three-way array, it is possible to recover sources to sensors channel gain coefficients, power spectral densities and on/off activity sequences of the sources by decomposing the three-way array into rank-one components. The recovery process is illustrated with simulation examples involving 802.11b/g and Bluetooth sources whose signals overlap in time and frequency. |
| Starting Page | 128 |
| Ending Page | 133 |
| File Size | 424664 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424422463 |
| DOI | 10.1109/CISS.2008.4558508 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-03-19 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Performance evaluation Image analysis Bluetooth Sensor phenomena and characterization Time measurement Computer networks Frequency measurement Spectrogram Signal resolution Sensor arrays |
| Content Type | Text |
| Resource Type | Article |
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