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Titolo:
Field trial results for high-speed wireless indoor data communications
Autore:
Frigon, JF; Daneshrad, B; Putnam, J; Berg, E; Kim, R; Sun, T; Samueli, H;
Indirizzi:
Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA Univ Calif Los Angeles Los Angeles CA USA 90095 Los Angeles, CA 90095 USA Broadcom Corp, Irvine, CA 92619 USA Broadcom Corp Irvine CA USA 92619Broadcom Corp, Irvine, CA 92619 USA Motorola Imaging & Entertainment Solut, Chandler, AZ 85224 USA Motorola Imaging & Entertainment Solut Chandler AZ USA 85224 AZ 85224 USA
Titolo Testata:
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
fascicolo: 3, volume: 18, anno: 2000,
pagine: 297 - 309
SICI:
0733-8716(200003)18:3<297:FTRFHW>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
RADIO-COMMUNICATIONS; DFE; EQUALIZATION; CHANNELS;
Keywords:
digital communication systems; diversity; field measurements; outage performance; performance evaluation; quadrature amplitude modulation (QAM) system; real-time adaptive equalization; system implementation; wireless indoor communications;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Frigon, JF Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA Univ Calif Los Angeles Los Angeles CA USA 90095 , CA 90095 USA
Citazione:
J.F. Frigon et al., "Field trial results for high-speed wireless indoor data communications", IEEE J SEL, 18(3), 2000, pp. 297-309

Abstract

This paper reports on the development of a flexible 5-MBd equalized M-QAM testbed for high-speed wireless data communications, The unit operates in real time and was held tested in typical indoor environments. A total of 3600 independent experiments were conducted using the testbed where one of 4-,16-, 64-QAM constellations were transmitted, and the performance as a function of adaptive equalization and antenna selection diversity was studied. The experimental results presented here help put previous simulation and analytical results into perspective and demonstrate some of the performance bounds associated with a practical implementation. The field trial results show that with only 10-mW of transmit power, reliable 10-Mbit/s data communication can take place in between rooms with a coverage radius of 17 m, and better than 15% outage at an uncoded bit error rate (BER) of 10(-3). The addition of two-branch antenna selection diversity to the system would allow 10-Mbit/s transmission at better than 3% outage and 20-Mbit/s transmission at 10% outage in the same environment. Moreover, 30-Mbit/s data transmission is feasible when both the transmitter and receiver are located within thesame room, albeit at higher outage levels, In general, the results demonstrate the tremendous impact that adaptive equalization can have on the achievable performance of indoor links. Average SNR was improved anywhere from 8dB to 12 dB depending on the particular environment and data rate. The impact on the outage performance, however, was much more dramatic.

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Documento generato il 13/08/20 alle ore 14:44:12