Jaringan Komunikasi Nirkabel dan Mobil

Komunikasi tanpa terikat secara fisik dengan kabel selalu menarik dan jaringan komunikasi seluler dan nirkabel menjanjikan hal itu. Beberapa tahun terakhir telah menyaksikan pertumbuhan jaringan komunikasi nirkabel yang belum pernah terjadi sebelumnya. Kemajuan signifikan telah dibuat dalam teknologi yang mendukung lingkungan komunikasi nirkabel dan ada banyak lagi yang akan datang di masa depan. Perangkat yang digunakan untuk komunikasi nirkabel memerlukan fitur tertentu yang mungkin tidak perlu dilakukan oleh perangkat komunikasi kabel. Fitur-fitur ini termasuk konsumsi daya rendah, ringan, dan kemampuan komunikasi di seluruh dunia.

Dalam jaringan komunikasi nirkabel dan seluler, akses ke jaringan komunikasi adalah nirkabel sehingga pengguna akhir tetap bebas bergerak. Sisa jalur komunikasi bisa menggunakan kabel, nirkabel, atau kombinasi keduanya. Secara umum, pengguna ponsel, saat berkomunikasi, memiliki koneksi nirkabel dengan fasilitas komunikasi tetap dan sisa jalur komunikasi tetap terhubung. Kisaran komunikasi nirkabel selalu terbatas dan karenanya jangkauan mobilitas pengguna juga terbatas. Untuk mengatasi keterbatasan ini, lingkungan komunikasi seluler telah dirancang. Dalam lingkungan komunikasi seluler, wilayah geografis dibagi menjadi wilayah yang lebih kecil yang disebut sel, sehingga disebut seluler. Setiap sel memiliki perangkat komunikasi tetap yang melayani semua perangkat seluler di dalam sel itu. Namun, sebagai perangkat seluler, saat dalam komunikasi aktif, bergerak dari satu sel ke sel lain, layanan koneksi tersebut ditransfer dari satu sel ke sel lainnya. Ini disebut proses handoff. Pengaturan seluler memiliki banyak fitur menarik. Karena ukuran sel kecil, perangkat seluler tidak perlu daya pancar yang sangat tinggi untuk berkomunikasi. Ini mengarah ke perangkat yang lebih kecil yang mengkonsumsi daya lebih sedikit.

Selain itu, diketahui bahwa spektrum frekuensi yang dapat digunakan untuk komunikasi nirkabel terbatas dan karenanya hanya dapat mendukung sejumlah kecil koneksi komunikasi nirkabel pada suatu waktu. Membagi wilayah komunikasi ke dalam sel memungkinkan penggunaan frekuensi yang sama di sel yang berbeda selama mereka cukup jauh untuk menghindari gangguan. Ini meningkatkan jumlah perangkat seluler yang dapat didukung. Kemajuan dalam algoritma pemrosesan sinyal digital dan elektronik yang lebih cepat telah menghasilkan perangkat komunikasi seluler yang sangat kuat, lebih kecil, elegan, dan serbaguna. Perangkat ini memiliki kemampuan komunikasi seluler yang luar biasa termasuk akses Internet nirkabel, email nirkabel dan item berita, dan komunikasi video nirkabel (meskipun terbatas) pada perangkat genggam. Telepon nirkabel sudah tersedia dan beroperasi di lingkungan komunikasi yang berbeda di seluruh benua. Hari tidak jauh ketika satu nomor komunikasi akan ditetapkan untuk setiap bayi yang baru lahir dan akan tinggal bersama orang itu terlepas dari lokasinya.

Bidang lain yang muncul adalah bidang jaringan komunikasi nirkabel ad hoc dengan cepat. Jaringan ini bersifat sementara dan dibangun untuk kebutuhan tertentu dan untuk jangka waktu tertentu. Tidak diperlukan pengaturan rumit untuk membangun jaringan ini. Karena beberapa perangkat komunikasi seluler saling berdekatan, mereka dapat membangun jaringan komunikasi di antara mereka sendiri. Situasi umum di mana jaringan nirkabel ad hoc dapat digunakan berada di lingkungan kelas, rapat perusahaan, konferensi,
situasi pemulihan bencana, dll. Setelah kebutuhan jaringan terpenuhi, pengaturan jaringan ad hoc menghilang.

Sekarang ini, teknologi menjadi bagian penting dari kehidupan kita saat ini. Teknologi elektronik akan memainkan peran penting dalam kehidupan kita sehari-hari.

34 thoughts on “Jaringan Komunikasi Nirkabel dan Mobil

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