FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2227339916> ?p ?o ?g. }

• W2227339916 abstract "AbstractDigital Predistortion for Broadband Radio-over-Fiber Transmission SystemsZichen XuanConcordia University 2015 With the increase of the demand of high capacity wireless access, design of cost effective broadband wireless signal distribution system is required, particularly for future massive multi-input and multi-output (MIMO) wireless. Recently, Radio-over-Fiber (RoF) transmission systems have been revisited for broadband wireless signal distribution between central processing unit (CPU) and remote radio unit (RRU) (i.e., antenna towers). RoF, which is based on optical subcarrier modulation and thus an analog transmission system, fully utilize the advantages of broadband and low-loss fiber transmission, and also radio signal transmission. Unfortunately, RoF transmission systems are very susceptible to nonlinear distortions, which can be generated by all inline functional components of the RoF systems. However, two typical functions, i.e., optical subcarrier modulation and RF power amplification, are the two key sources of the nonlinear distortions. Various linearization techniques have been investigated for power RF amplifiers. It has been found that digital predistortion (DPD) linearization is one of the best approaches for RF bandwidth of up to 20 MHz. In this thesis, DPD linearization is explored for broadband RoF transmission systems. Instead of DPD implemented in baseband previously, a DPD linearization technique implemented in RF domain is investigated and demonstrated experimentally for broadband RoF transmission systems. Memory polynomial (MP) model is used for theoretical modeling of nonlinear RoF transmission systems, in which both nonlinear distortion and memory effect can be included. In order to implement the predistorter of the DPD using the MP model, least square (LS) method is used to extract the coefficients of the predistorter. Using the obtained coefficients, the trained predistorter is implemented and then verified in two experiments of directly modulated RoF transmission systems. In the first experiment, the DPD is verified in WiFi over fiber transmission systems, and more than 8 dB and 5.6 dB improvements of error vector magnitude (EVM) are achieved in back to back (BTB) and after 10 km single mode fiber (SMF) transmission. In the second experiment, both WiFi and ultra wide band (UWB) wireless signals are transmitted in the RoF system, which occupies over 2.4 GHz transmission bandwidth. It is shown that the implemented DPD leads to EVM improvements of 4.5 dB (BTB) and 3.1 dB (10 km SMF) for the WiFi signal, and 4.6 dB (BTB) and 4 dB (10 km SMF) for the UWB signal." @default.
• W2227339916 created "2016-06-24" @default.
• W2227339916 creator A5073939307 @default.
• W2227339916 date "2015-09-09" @default.
• W2227339916 modified "2023-09-27" @default.
• W2227339916 title "Digital Predistortion for Broadband Radio-over-Fiber Transmission Systems" @default.
• W2227339916 cites W1491493909 @default.
• W2227339916 cites W1508381767 @default.
• W2227339916 cites W1574693489 @default.
• W2227339916 cites W1851276900 @default.
• W2227339916 cites W1956124517 @default.
• W2227339916 cites W1968717686 @default.
• W2227339916 cites W1972476850 @default.
• W2227339916 cites W1991257066 @default.
• W2227339916 cites W1995800056 @default.
• W2227339916 cites W1999169965 @default.
• W2227339916 cites W2007289479 @default.
• W2227339916 cites W2008981544 @default.
• W2227339916 cites W2014750378 @default.
• W2227339916 cites W2016910422 @default.
• W2227339916 cites W2018685487 @default.
• W2227339916 cites W2032056441 @default.
• W2227339916 cites W2035878201 @default.
• W2227339916 cites W2037138878 @default.
• W2227339916 cites W2040192672 @default.
• W2227339916 cites W2067068858 @default.
• W2227339916 cites W2068389102 @default.
• W2227339916 cites W2075184092 @default.
• W2227339916 cites W2075570516 @default.
• W2227339916 cites W2079576277 @default.
• W2227339916 cites W2089037618 @default.
• W2227339916 cites W2093408533 @default.
• W2227339916 cites W2103445172 @default.
• W2227339916 cites W2103630916 @default.
• W2227339916 cites W2103722567 @default.
• W2227339916 cites W2106473565 @default.
• W2227339916 cites W2115087361 @default.
• W2227339916 cites W2128656413 @default.
• W2227339916 cites W2147044713 @default.
• W2227339916 cites W2162257445 @default.
• W2227339916 cites W2170265514 @default.
• W2227339916 cites W2171395034 @default.
• W2227339916 cites W2335353069 @default.
• W2227339916 hasPublicationYear "2015" @default.
• W2227339916 type Work @default.
• W2227339916 sameAs 2227339916 @default.
• W2227339916 citedByCount "2" @default.
• W2227339916 countsByYear W22273399162016 @default.
• W2227339916 countsByYear W22273399162018 @default.
• W2227339916 crossrefType "dissertation" @default.
• W2227339916 hasAuthorship W2227339916A5073939307 @default.
• W2227339916 hasConcept C11210021 @default.
• W2227339916 hasConcept C121332964 @default.
• W2227339916 hasConcept C123079801 @default.
• W2227339916 hasConcept C127162648 @default.
• W2227339916 hasConcept C127413603 @default.
• W2227339916 hasConcept C158622935 @default.
• W2227339916 hasConcept C194257627 @default.
• W2227339916 hasConcept C198329298 @default.
• W2227339916 hasConcept C24326235 @default.
• W2227339916 hasConcept C24890656 @default.
• W2227339916 hasConcept C2776257435 @default.
• W2227339916 hasConcept C2778587875 @default.
• W2227339916 hasConcept C2780113332 @default.
• W2227339916 hasConcept C40409654 @default.
• W2227339916 hasConcept C41008148 @default.
• W2227339916 hasConcept C509933004 @default.
• W2227339916 hasConcept C555944384 @default.
• W2227339916 hasConcept C62520636 @default.
• W2227339916 hasConcept C65165936 @default.
• W2227339916 hasConcept C74064498 @default.
• W2227339916 hasConcept C761482 @default.
• W2227339916 hasConcept C76155785 @default.
• W2227339916 hasConceptScore W2227339916C11210021 @default.
• W2227339916 hasConceptScore W2227339916C121332964 @default.
• W2227339916 hasConceptScore W2227339916C123079801 @default.
• W2227339916 hasConceptScore W2227339916C127162648 @default.
• W2227339916 hasConceptScore W2227339916C127413603 @default.
• W2227339916 hasConceptScore W2227339916C158622935 @default.
• W2227339916 hasConceptScore W2227339916C194257627 @default.
• W2227339916 hasConceptScore W2227339916C198329298 @default.
• W2227339916 hasConceptScore W2227339916C24326235 @default.
• W2227339916 hasConceptScore W2227339916C24890656 @default.
• W2227339916 hasConceptScore W2227339916C2776257435 @default.
• W2227339916 hasConceptScore W2227339916C2778587875 @default.
• W2227339916 hasConceptScore W2227339916C2780113332 @default.
• W2227339916 hasConceptScore W2227339916C40409654 @default.
• W2227339916 hasConceptScore W2227339916C41008148 @default.
• W2227339916 hasConceptScore W2227339916C509933004 @default.
• W2227339916 hasConceptScore W2227339916C555944384 @default.
• W2227339916 hasConceptScore W2227339916C62520636 @default.
• W2227339916 hasConceptScore W2227339916C65165936 @default.
• W2227339916 hasConceptScore W2227339916C74064498 @default.
• W2227339916 hasConceptScore W2227339916C761482 @default.
• W2227339916 hasConceptScore W2227339916C76155785 @default.
• W2227339916 hasLocation W22273399161 @default.
• W2227339916 hasOpenAccess W2227339916 @default.
• W2227339916 hasPrimaryLocation W22273399161 @default.
• W2227339916 hasRelatedWork W1993210028 @default.
• W2227339916 hasRelatedWork W1994965796 @default.

• next