FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2243670274> ?p ?o ?g. }

• W2243670274 abstract "The growing demand for high-speed Broadband Wireless Access (BWA) applications has motivated the use of millimetre waves operation in Ka band, point-to-multipoint fixed cellular with a large bandwidth of 0.5–1.55 GHz. This service is also known as Local Multipoint Distribution Service (LMDS). It has the advantages of rapid installation, scalability, high capacity, ease of deployment and low initial infrastructure costs; and could be an attractive alternative to other broadband access technologies. However, the service is limited up to 8 km of coverage area due to line of sight constraints. Co-channel interference and rain attenuation are major limitation factors to system performance. This study is conducted to analyse LMDS performance based on local rain cell profile. The long-term cumulative rainfall rate was obtained from weather radar data. This data is compared with ITU-R recommendation and data from rain gauge network. The influence of rain length distribution probability to different rain rate thresholds had been studied from the database for an area size of 25 km2. The target is to design LMDS that reaches up to 5 km of cell size service with good availability. Four architectures of fixed BWA were investigated in terms of a carrier to interference ratio (C/I) using three types of modulations which are QPSK, 16-QAM and 64-QAM. The rain cell profile results shows that higher rain rates experience shorter rain length. The rain rates at 0.01 percentage of time for radar data in UTM is 106.25 mm/hr and rain length was less than 0.46 km. Besides, during low rain rate events, the LMDS service coverage has better performance than clear sky. This is due to fact that the low rain rates present low attenuation to the desired signal but causes high attenuation to interfering base station signals, resulting in better C/I performance. During heavy precipitation, the effective service coverage area will reach to less than 2 km using QPSK in conventional architecture at 99.99% availability. In addition, the co-channel interference can be reduced by using certain design-rule for various architectures. Moreover, it was observed that by decreasing LMDS cell size, the service coverage performance would improve. Two methods had been proposed to improve the performance. One is to use different architectures namely conventional with 4 frequency reuse, simplex ring relaying and dual ring relaying. The second method is to reduce the LMDS service size, i.e. to determine appropriate cell size which offers 99.99% availability. It showed that, for conventional architecture, 3 km cell size was sufficient to reach the required availability based on local climate. In addition, 5 km service cell size for 99.98% availability can be achieved by using dual ring architecture. All the information are important to present BWA network architectures for Malaysian environment based on rain intensity distribution extracted from radar data." @default.
• W2243670274 created "2016-06-24" @default.
• W2243670274 creator A5019685309 @default.
• W2243670274 date "2013-03-01" @default.
• W2243670274 modified "2023-09-27" @default.
• W2243670274 title "Local multipoint distribution services architecture based on rain profile extracted from meteorological radar" @default.
• W2243670274 cites W1450447295 @default.
• W2243670274 cites W1481967835 @default.
• W2243670274 cites W1510392950 @default.
• W2243670274 cites W1573293896 @default.
• W2243670274 cites W1606552277 @default.
• W2243670274 cites W1873254091 @default.
• W2243670274 cites W1976263373 @default.
• W2243670274 cites W1977671447 @default.
• W2243670274 cites W1981263579 @default.
• W2243670274 cites W1996554554 @default.
• W2243670274 cites W2013004016 @default.
• W2243670274 cites W2024388854 @default.
• W2243670274 cites W2060233374 @default.
• W2243670274 cites W2072929410 @default.
• W2243670274 cites W2096479200 @default.
• W2243670274 cites W2098967854 @default.
• W2243670274 cites W2111823440 @default.
• W2243670274 cites W2114458732 @default.
• W2243670274 cites W2114478590 @default.
• W2243670274 cites W2122301978 @default.
• W2243670274 cites W2123568578 @default.
• W2243670274 cites W2134285433 @default.
• W2243670274 cites W2147462556 @default.
• W2243670274 cites W2149344245 @default.
• W2243670274 cites W2152310278 @default.
• W2243670274 cites W2153596831 @default.
• W2243670274 cites W2159567217 @default.
• W2243670274 cites W2161799651 @default.
• W2243670274 cites W2162061033 @default.
• W2243670274 cites W2162860219 @default.
• W2243670274 cites W2167747598 @default.
• W2243670274 cites W2168796613 @default.
• W2243670274 cites W2173031829 @default.
• W2243670274 cites W2178280355 @default.
• W2243670274 cites W321252418 @default.
• W2243670274 cites W434934925 @default.
• W2243670274 cites W90504161 @default.
• W2243670274 cites W923223296 @default.
• W2243670274 cites W2059739118 @default.
• W2243670274 hasPublicationYear "2013" @default.
• W2243670274 type Work @default.
• W2243670274 sameAs 2243670274 @default.
• W2243670274 citedByCount "0" @default.
• W2243670274 crossrefType "dissertation" @default.
• W2243670274 hasAuthorship W2243670274A5019685309 @default.
• W2243670274 hasConcept C103784038 @default.
• W2243670274 hasConcept C105795698 @default.
• W2243670274 hasConcept C108037233 @default.
• W2243670274 hasConcept C120961793 @default.
• W2243670274 hasConcept C153294291 @default.
• W2243670274 hasConcept C197055811 @default.
• W2243670274 hasConcept C205649164 @default.
• W2243670274 hasConcept C33923547 @default.
• W2243670274 hasConcept C39432304 @default.
• W2243670274 hasConcept C41008148 @default.
• W2243670274 hasConcept C49533043 @default.
• W2243670274 hasConcept C554190296 @default.
• W2243670274 hasConcept C555944384 @default.
• W2243670274 hasConcept C62649853 @default.
• W2243670274 hasConcept C76155785 @default.
• W2243670274 hasConcept C85608190 @default.
• W2243670274 hasConceptScore W2243670274C103784038 @default.
• W2243670274 hasConceptScore W2243670274C105795698 @default.
• W2243670274 hasConceptScore W2243670274C108037233 @default.
• W2243670274 hasConceptScore W2243670274C120961793 @default.
• W2243670274 hasConceptScore W2243670274C153294291 @default.
• W2243670274 hasConceptScore W2243670274C197055811 @default.
• W2243670274 hasConceptScore W2243670274C205649164 @default.
• W2243670274 hasConceptScore W2243670274C33923547 @default.
• W2243670274 hasConceptScore W2243670274C39432304 @default.
• W2243670274 hasConceptScore W2243670274C41008148 @default.
• W2243670274 hasConceptScore W2243670274C49533043 @default.
• W2243670274 hasConceptScore W2243670274C554190296 @default.
• W2243670274 hasConceptScore W2243670274C555944384 @default.
• W2243670274 hasConceptScore W2243670274C62649853 @default.
• W2243670274 hasConceptScore W2243670274C76155785 @default.
• W2243670274 hasConceptScore W2243670274C85608190 @default.
• W2243670274 hasLocation W22436702741 @default.
• W2243670274 hasOpenAccess W2243670274 @default.
• W2243670274 hasPrimaryLocation W22436702741 @default.
• W2243670274 hasRelatedWork W1014644190 @default.
• W2243670274 hasRelatedWork W1041496655 @default.
• W2243670274 hasRelatedWork W2003555134 @default.
• W2243670274 hasRelatedWork W2086755631 @default.
• W2243670274 hasRelatedWork W2104601262 @default.
• W2243670274 hasRelatedWork W2124463569 @default.
• W2243670274 hasRelatedWork W2130659595 @default.
• W2243670274 hasRelatedWork W2147246677 @default.
• W2243670274 hasRelatedWork W2184428534 @default.
• W2243670274 hasRelatedWork W2186396993 @default.
• W2243670274 hasRelatedWork W2187930348 @default.
• W2243670274 hasRelatedWork W2327882710 @default.
• W2243670274 hasRelatedWork W2339627923 @default.
• W2243670274 hasRelatedWork W2340288602 @default.

• next