scholarly journals Analisis, Perancangan, Dan Implementasi Jaringan Wireless Point To Point Antara Kampus A Dan Kampus B Universitas Negeri Jakarta

2017 ◽  
Vol 1 (2) ◽  
pp. 134-141 ◽  
Author(s):  
M. Ficky Duskarnaen ◽  
Febri Nurfalah

Tujuan dari penelitian ini adalah membangun jaringan wireless point to point antara Kampus A dan Kampus B Universitas Negeri Jakarta. Penelitian ini menggunakan metode research and development yang meliputi kegiatan analisis, perancangan, dan implementasi. Jalur komunikasi untuk menghubungkan Kampus A dan Kampus B Universitas Negeri Jakarta menggunakan jalur kabel Telkom, jalur tersebut digunakan sebagai backbone utama. Karena belum adanya penerapan fault tolerance pada jalur tersebut maka jaringan wireless point to point perlu dipersiapkan sebagai alternatif apabila terjadi kegagalan. Analisis kondisi lokasi pemasangan wireless yaitu ketinggian Gedung Sertifikasi 42 m dan Gedung Rusun Mahasiswa 17 m, dua lokasi berjarak 911 m dengan besar free space loss 99,24 dB – 99,49 dB, line of sight terbebas dari penghalang, dan radius fresnel zone 4,27 m – 4,33 m (BTS Telkom) dan 5,24 m – 5,32 m (Gedung Rabbani) dalam kondisi tidak terhalang. Perencanaan desain jaringan dalam mode bridge – station bridge, menggunakan perangkat keras Mikrotik Metal 2SHPn 30 dBm, Antena Grid 24 dBi, kabel pigtail LMR-400, dan tower triangle. Jaringan wireless point to point berhasil diimplementasikan dengan hasil pengujian yaitu terdapat banyak interferensi dari wireless access point lain, sambungan berhasil dilakukan dengan 0% packet loss, kekuatan sinyal -64,75 dBm, SNR 41,25 dB, CCQ 86,14%, dan throughput 11,15 Mbps.

Author(s):  
Chantana Chantrapornchai ◽  
W. Chedsiri

In this work, a development of stock counting system using PDA is presented. The design and development issues are studied for the case of a superstore in Thailand. The stock counting is a tedious work in a department store. Employees need to physically walk down the shelves and count the amount of items each day. The amount of items is compared to the amount in the system to check for the loss of items every day. For a large-size department store, many employees need to spend lots of time to perform the tasks. Introducing the use of PDA together with the barcodes of the products will help automate the process, save time, and reduce the errors for checking the stock counts. In this paper, the design of system presents in the aspect of 1) the PDA software client and server sides 2) wireless access point installation costs and plans. After the development, the system is employed. Its efficiency is compared to the manual counting and the user satisfactory is evaluated.


Author(s):  
Joe Levy ◽  
Khai Tran ◽  
Patrick Lydon ◽  
Jeremy Pollock ◽  
Dave Parry ◽  
...  

2020 ◽  
Vol 69 (5) ◽  
pp. 1860-1870 ◽  
Author(s):  
You Li ◽  
Kunlun Yan ◽  
Zhe He ◽  
Yuqi Li ◽  
Zhouzheng Gao ◽  
...  

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