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Handover Analysis of Data and VoIP Services in 802.11b/g/n Wireless LAN Imam Prasetyo; Muhammad Anif; Ari Sriyanto Nugroho; Subuh Pramono; Sarono Widodo; Sidiq S. Hidayat
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 11: November 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i11.pp7832-7844

Abstract

IEEE 802.11b/g/n WLAN with conventional ESS infrastructure doesn’t support handover feature. Handover feature allows user to migrate services between APs without losing connection. Handoff latency is one problem in WLAN to perform real-time application such as VoIP. To bring seamless handover and QoS guarantee in ESS network, we propose five network optimization methods i.e.configuring overlapping area of APs, placing APs in one roaming domain, using the same SSID and security mode, choosing APs channel by margin of 5, and configuring APs as DHCP forwarder. Handover test is done by sniffing on the client that experienced handover. In the result, there are three steps in Layer 2 handoff, i.e. probing, authentication, and re-association with maximum handoff latency is 325.02 ms in data services and 67.412 ms in VoIP. In VoIP services, one way delay is 39.985 - 49.18 ms, one way jitter is 9.45 - 19.57 ms, and the packet loss is 0 - 0.548%. Overall, the built network system is able to guarantee QoS in handover case, both in data and VoIP services.
Penerapan Intrusion Detection System (IDS) dengan metode Deteksi Port Scanning pada Jaringan Komputer di Politeknik Negeri Semarang Anif, Muhammad; Sasono, Sindung HW; Huri, Mokhamad Daman
TELE, Journal of Applied Communication and Information Technologies Vol 13, No 1 (2015)
Publisher : Politeknik Negeri Semarang

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Abstract

Keamanan jaringan komputer merupakan isu yang sangat penting, seiring dengan pentingnya informasi yang terkandung pada jaringan. Port scanning merupakan langkah awal serangan terhadap jaringan komputer. Dari keberhasilan melakukan port scanning, penyerang dapat melanjutkan serangan lanjutan ke jaringan komputer. Penelitian ini bertujuan menciptakan sistem keamanan jaringan komputer yang ringan, berbasis open source, mudah diatur dan dianalisis oleh administrator jaringan. Sistem dirancang menggunakan portsentry sebagai Intrusion Detection System (IDS) yang diintegrasikan dengan syslog-notify sebagai alert. Sistem akan memblokir alamat Internet Protocol (IP) yang diketahui melakukan aktivitas port scanning. Dari penelitian ini diketahui bahwa portsentry efektif dalam menangkal serangan port scanning namun tidak mampu memblokir serangan jenis sniffer, IP spoofing dan Denial of Service (DoS) karena bersifat tersembunyi dan tidak dianggap sebagai tindakan berbahaya. Untuk mengantisipasi serangan jenis ini, portsentry perlu dikombinasikan dengan tool pengaman lain misalnya firewall dan antivirus. 
Desain Smart City Model Penerangan Area Parkir Menggunakan Metode Sel lampu LED Hemat Energi Dikontrol Dengan Mikrokontroler Sarono Widodo; Agus Rochadi; Muhammad Anif
Prosiding 2nd Seminar Nasional IPTEK Terapan (SENIT) 2017 Vol 2, No 1 (2017): Mei 2017
Publisher : Politeknik Harapan Bersama Tegal

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Abstract

Penggunaan lampu sebagai penerangan rumah, gedung perkantoran, taman, parkir dan jalan umum masih sebagian besar mengkonsumsi daya yang relatif besar sehingga kebutuhan energinya juga besar. Perlu diupayakan bagaimana mengkonsumsi energi sehemat mungkin dalam kondisi keterbatasan energi. Penggunaan lampu dalam area parkir yang masih menggunakan lampu berdaya tinggi dan penyalaannya yang bersamaan tentu sangat memboroskan energi. Desain untuk smart city dalam penerangan parkir dengan penggunaan daya rendah untuk penerangan sehemat mungkin. Metode yang digunakan adalah mengatur penyalaaan lampu secara sel/kelompok pada titik-titik penerangan secara bertahap dan digunakan jenis lampu LED. Metode penerangan sel dan penggunaan lampu LED berdaya rendah ini akan terjadi penghematan dari sisi konsumsi daya. Desain yang dibuat mencakup penempatan lampu dalam model area parkir, rancangan sistem kontrol menggunakan mikrokontroler dan antarmuka kontrol lampu.
Penerapan Algoritma Kriptografi TEA Dan Base64 Untuk Mengamankan Email Data Policy Asuransi Siswanto, Siswanto; Anif, Muhammad; Gata, Windu
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol 2 No 1 (2018)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.98 KB) | DOI: 10.31961/eltikom.v2i1.44

Abstract

Aplikasi pengamanan data ini dirancang untuk mengamankan email data penting pada PT. Dekai Indonesia terutama data policy yang berisi data pribadi para nasabah. Karena banyaknya data penting para nasabah maka keamanan data tersebut menjadi sangat rentan terhadap pencurian dan manipulasi data dari berbagai pihak yang tidak bertanggung jawab mengingat sering juga data tersebut dikirimkan menggunakan fasilitas email. Dengan banyaknya data penting yang sering juga bersifat rahasia tersebut, maka data tersebut menjadi rentan dengan pencurian data, manipulasi data atau penyadapan email. Permasalahan tersebut dapat dihadapi demgan membuat aplikasi untuk mencegah pihak yang tidak bertanggung jawab dapat membaca isi file dari data transaksi. Juga menjamin keaslian data sensitif dan penting hanya dapat diterima dan dibaca oleh orang-orang yang berhak mendapatkan data. Dalam penulisan ini algoritma yang digunakan dalam kriptografi, yaitu algoritma kriptografi TEA (Tiny Encryption Algorithm). Penggunaan sistem kriptografi ini dimaksudkan agar data tersebut tidak mudah dibobol. Bahasa pemrograman yang digunakan dalam membangun aplikasi pengamanan data ini adalah bahasa pemrograman PHP yang berbasis web. Hasil dari pengujian kriptografi ini, data dapat diamankan untuk menghindari serangan cryptanalysis. Rata-rata ukuran file yang telah melalui proses encrypt bertambah sekitar 33,29512 persen dari ukuran asli file sebelum melalui proses encrypt. Rata-rata perubahan ukuran file yang telah melalui proses decrypt akan berkurang sebesar 25.0231 persen.
DESAIN ENERGI HIBRIDA SOLAR PANEL DAN LISTRIK UNTUK PENERANGAN AREA PARKIR Widodo, Sarono; Rochadi, Agus; Anif, Muhammad
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.118 KB) | DOI: 10.31884/jtt.v5i1.165

Abstract

The design of hybrid energy by utilizing solar energy and electrical energy (PLN) is further research as a source of energy for cell model lighting in the parking area. The electricity generated from the sun through solar panels stored on the battery as the primary source through a hybrid system. The system is designed using two solar panels (110 Wp), Mesonic MF 1500 and Deep cycle 12V / 100Ah batteries to supply 100 - 250-watt parking lot lighting for three to four hours. With this hybrid method, the use of electrical energy for lighting can be supplied complete with solar panels.
Implementasi Teknologi Load Balancing Dua Jalur Internet Service Provide (ISP) menggunakan Metode Per Connection Classifier (PCC) di Pondok Pesantren Yasin Kudus Anif, Muhammad; Widodo, Sarono; Hidayat, Sidiq Syamsul; Triyono, Eddy; Wasito, Endro; Wardihani, Eni Dwi; Anggraeni, Sri; Pramono, Subuh; Yulianto, Taufiq; Iswanti, Iswanti; Firmansyah, Ardi
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol 2 No 1 (2018): JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : Dewan Pimpinan Daerah (DPD) Forum Dosen Indonesia JATIM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (805.44 KB) | DOI: 10.36339/je.v2i1.105

Abstract

Access to the Internet, as well as Information and Communication Technology (ICT) in general, is nowincreasingly needed by the wider community, including by the pesantren community. The community of pesantren needInternet media to expand access to sources of knowledge, publish the activities of pesantren, as well as a medium ofpesantren da?wah in cyberspace. Due to the lack of use of ICT in pesantren, then not all ICT components can be utilized.This community service partner is Pesantren Yasin Kudus, who wants to apply ICT to support learning for students(called santri), by providing smooth and healthy Internet access at affordable cost. The problem faced is Internet accessthat only depends on one Internet Service Provider (ISP), so if the connection on the ISP is failed then Internet accessbecomes disturbed. The solution offered is the use of two ISP connections as an Internet access network, by applying loadbalancing technology using Per Connection Classifier (PCC) method so that loading of traffic on both ISPs can bebalanced. With this program, partners can utilize Internet access from both ISPs optimally
Pendampingan Pemasaran Digital Untuk Kerajinan Rajut Kepada Ibu-ibu PKK RW V Kelurahan Jomblang Kecamatan Candisari Kota Semarang Widodo, Sarono; Anif, Muhammad; Wasito, Endro; Wardihani, Eni Dwi; Triyono, eddy; Anggraeni, Sri; Yulianto, Taufiq; Novitasari, Muhlasah
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol 3 No 2 (2019): JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : Dewan Pimpinan Daerah (DPD) Forum Dosen Indonesia JATIM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.833 KB) | DOI: 10.36339/je.v3i2.240

Abstract

Jomblang Village is one of the villages in Candisari sub-district, Semarang city. Jomblang Village has an area of ??± 108 Ha and has a population of 17,322 people, has 15 RWs and 120 RTs. Activities that have been developed in Kelurahan Jomblang include catfish fattening, packaging screen printing, waste processing and catering including tempe craftsmen, tofu into chips. The activity carried out is an initiative of the local community, which is carried out with affordable capital and can be done by residents on the sidelines of free time which can be used as a side job. In this service, PKK mothers in RW V, Jomblang sub-district, Candisari subdistrict, Semarang has conducted training in the form of knitting skills and making simple knitting bags, followed by mentoring on how to market their products digitally (via the internet). The completion of community service is expected to make it easier for mothers to sell their knitting products and increase their product sales to the community through IoT technology so that it can improve the family economy.
Pelatihan Pemanfaatan E-Commerce Pasar Grosir Setono Pekalongan Widodo, Sarono; Yulianto, Taufiq; Triyono, Eddy; Wardihani, Eni D.; Anif, Muhammad; Kadiran, Sri Anggraeni; Pramono, Subuh; Wasito, Endro
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol 1 No 1 (2017): JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : Dewan Pimpinan Daerah (DPD) Forum Dosen Indonesia JATIM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (767.084 KB) | DOI: 10.36339/je.v1i1.14

Abstract

Pengabdian kepada masyarakat yang telah dilakukan oleh tim pengabdian adalah untuk memberikan bantuan teknis kepada Koperasi Pengusaha Batik Setono dalam pengelolaan memperluas pemasaran Pasar Grosir Setono yang berlokasi di Jl. Dr.Sutomo, kota Pekalongan. Selama ini pemasaran dari batik Setono masih bersifat tradisional melalui jasa penjualan di lokasi grosir. Dalam upaya meningkatkan penjualan diperlukan pemasaran yang lebih luas memalui sebuah media pemasaran yaitu website. Website yang dikelola berupa website e-commerce untuk memperkenalkan dan menjual hasil produk batik. Transaksi produk, pelayanan nasabah, fitur lain dapat dilakukan melalui website tersebut. Dengan pemanfaatan e-commerce diharapkan dapat meningkatkan hasil penjualan sekaligus memperluas pasar batik Setono ke dunia internasional.
Pengembangan Aplikasi Kunci Elektronik Brankas Berbasis Android dengan Mikrokontroler Berbasis Bluetooth Rozi, Ilham Fahrul; Sakti, Dolly Virgian Shaka Yudha; Juanita, Safitri; Anif, Muhammad
JURNAL MEDIA INFORMATIKA BUDIDARMA Vol 4, No 3 (2020): Juli 2020
Publisher : STMIK Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/mib.v4i3.2189

Abstract

Safety deposit box areusually used to protect valuables stuff from fire and theft using analog or digital keys or a combination of both. This research makes android based electronic lock application for safety deposit box to automate safe opening and closing keys with the help of a microcontroller using Bluetooth. The Workflow of these application is an Android application will activate Bluetooth on the cell phone and send input to the arduino network microcontroller to activate the Solenoid door lock so that it can open or lock safely. The purpose of this research is to design and build an Android application for electronic keys in a safety deposit box so that it has a high level of security and has a history (log) feature to find out the user's application activities. The system development life cycle that will be used to build this application is the Waterfall method. This application will be built using Java programming language with the Basic4Android editor, the database is stored using SQLite. The conclusion of this research is that after testing concluded that the integration of network microcontrollers such as Solenoid door locks, ATmega 328, Bluetooth HC-05 and testing Android applications as electronic keys into the application security system in safety deposit box has high security, simulation tools in safety deposit box can respond which is good for users when performing commands from Android via Bluetooth in less than 5 meters, the security system has high security because it has an authentication and LOG feature to find out the user's last activity (in and out)
DESAIN ENERGI HIBRIDA SOLAR PANEL DAN LISTRIK UNTUK PENERANGAN AREA PARKIR Sarono Widodo; Agus Rochadi; Muhammad Anif
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.118 KB) | DOI: 10.31884/jtt.v5i1.165

Abstract

The design of hybrid energy by utilizing solar energy and electrical energy (PLN) is further research as a source of energy for cell model lighting in the parking area. The electricity generated from the sun through solar panels stored on the battery as the primary source through a hybrid system. The system is designed using two solar panels (110 Wp), Mesonic MF 1500 and Deep cycle 12V / 100Ah batteries to supply 100 - 250-watt parking lot lighting for three to four hours. With this hybrid method, the use of electrical energy for lighting can be supplied complete with solar panels.