Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Multi-disciplinary Studies | en_US |
| dc.contributor | Department of Electronic Engineering | en_US |
| dc.creator | Sia, Chun-chung | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/772 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Spread spectrum communication on power line | en_US |
| dcterms.abstract | This project discusses the performance of data transmission in low-voltage power line channel by CDMA. The modulation technique used is OFDM-CDMA instead of the conventional technique DS-CDMA. The OFDM-CDMA system consists of three parts. They are transmitter, channel and receiver. The whole simulation is based on multi-user environment. The components of transmitter include a random data generator, Orthogonal-Walsh code generator, analogue adder, serial-to-parallel converter, multi-carrier generator, mixer and coupler. The channel is comprised of 220V generator, Gaussian white noise generator, color noise generator, multi-frequency attenuator and multi-path generator. Receiver part consists of de-coupler, band pass filter array, match-filter, parallel-to-serial converter, maximum-likelihood detector (MLD) and bit error rate calculator. | en_US |
| dcterms.extent | 77 leaves : ill. ; 30 cm | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 1998 | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.educationalLevel | M.Sc. | en_US |
| dcterms.LCSH | Code division multiple access | en_US |
| dcterms.LCSH | Spread spectrum communications | en_US |
| dcterms.LCSH | Data transmission systems | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b14418903.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 9.44 MB | Adobe PDF | View/Open |
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