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Title: | Experimental characterization of a direct-sequence spread-spectrum optical wireless system based on pulse-conformation techniques for in-house communications | Authors: | Rabadán, José A. Bacallado, Miguel A. Delgado, Francisco Pérez, Santiago T. Pérez-Jiménez, Rafael |
Keywords: | Spread spectrum communication Optical pulses Interference Infrared spectra Optical propagation, et al |
Issue Date: | 2004 | Publisher: | 0098-3063 | Journal: | IEEE Transactions on Consumer Electronics | Abstract: | In this paper, the design and experimental testing of a direct-sequence spread spectrum (DSSS) system for wireless infrared LAN is presented. This method improves the wireless IR communications performances against multipath propagation and narrowband interference. We have implemented a IR-DSSS prototype with 100 MHz code frequency and 6 Mbps bit rate. We have also studied the effects of both Gaussian and sinusoidal signal conformation over wireless optical DSSS systems. These results show that these techniques reduce the adjacent-channel interference without loss of process gain or substantial reductions of BER vs. S/N performances. We also present some results about a simplified synchronization structure to be used on reduced-cost domestic equipment. These systems are suitable for different applications at low and medium rates, especially for in-house. | URI: | http://hdl.handle.net/10553/46866 | ISSN: | 0098-3063 | DOI: | 10.1109/TCE.2004.1309412 | Source: | IEEE Transactions on Consumer Electronics[ISSN 0098-3063],v. 50, p. 484-490 |
Appears in Collections: | Artículos |
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