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1. |
Record Nr. |
UNINA9910135769203321 |
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Titolo |
Brazzil |
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Pubbl/distr/stampa |
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Los Angeles, CA, : Brazzil |
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Disciplina |
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Soggetti |
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Popular culture - Brazil |
Brazilian Americans |
Culture populaire - Brésil |
Américains d'origine brésilienne |
Popular culture |
Periodicals. |
Brazil Periodicals |
Brazil |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Periodico |
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Note generali |
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Sommario/riassunto |
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Predominantly English language monthly magazine on Brazilian culture, politics, and news. |
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2. |
Record Nr. |
UNINA9910780031803321 |
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Autore |
Shiu Da-Shan |
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Titolo |
Wireless communication using dual antenna arrays [[electronic resource] /] / by Da-shan Shiu ; [foreword by Joseph M. Kahn] |
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Pubbl/distr/stampa |
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Boston, : Kluwer Academic, c2000 |
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ISBN |
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1-280-20808-2 |
9786610208081 |
0-306-47327-5 |
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Edizione |
[1st ed. 2002.] |
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Descrizione fisica |
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1 online resource (144 p.) |
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Collana |
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The Kluwer international series in engineering and computer science ; ; SECS 529 |
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Disciplina |
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Soggetti |
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Wireless communication systems |
Antenna arrays |
Radio - Transmitters and transmission |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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Background -- Spatial Fading Correlation and Its Effects on Channel Capacity -- Power-Allocation Strategies -- Layered Space-Time Codes: Analysis and Design Criteria -- Transmit Diversity -- Open Issues. |
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Sommario/riassunto |
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At present, the expansion of tetherless communications is a technological trend surpassed perhaps only by the explosive growth of the Internet. Wireless systems are being deployed today mainly for telephony, satisfying the ind- trialized nations’ appetite for talk-on-the-go, and providing much-needed communications infrastructure in developing countries. The desire for wi- less access to the Internet is starting to add fuel to the growth of tetherless communications. Indeed, the synergy of wireless and Internet technologies will lead to a host of exciting new applications, some of which are not yet envisioned. Future-generation wireless systems will achieve capacities much higher than the systems of today by incorporating myriad improvements. These in- vations include transmission in higher-frequency bands, “smart antennas”, multi-user detection, new forward error-correction techniques, and advanced network resource-allocation techniques. The term “smart antenna” usually refers to the deployment |
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of multiple antennas at the base-station site, coupled with special processing of the m- tiple received signals. Smart antennas can adaptively reject co-channel int- ference and mitigate multipath fading, and have been identified by many as a promising means to extend base-station coverage, increase system capacity and enhance quality of service. |
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