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Aloha

Norman Abramson and his colleagues were developed aloha at the University of Hawaii in the 1970s. ALOHA is a Multiple Access Protocol which is used for random access in the network. Aloha was designed for the wireless local area network (WLAN), which is also known as the radio broadcast. If more than one user transmits the data at the same time, then that data has a collision, and that data destroy.

Pure ALOHA vulnerable time = 2 x T fr. Throughput: S = G.e-2G G = no. Of average frames generated in T fr Maximum throughput is 0.184 when G=1/2 2) Slotted Aloha. Slotted Aloha is a modified version of pure aloha where we divide the time into slots of T fr. Thus, If a station fails to send the frame in one slot it can't send throughout that. simulation of aloha and slotted aloha protocal. I'm not sure exactly where this is most topical, but certainly not here. Here in comp.lang.c we discuss the C language itself.

Type of Aloha

Aloha has been divided into two types.

1. Pure Aloha
2. Slotted Aloha

Pure Aloha

Pure Aloha is also called the original aloha protocol. It’s a simple but elegant protocol, i.e., whenever the system has a data frame to send, it transmits the data frame continuously. Due to which the risk of collision is very high in this aloha method. Shown in below pure aloha.

Therefore, the acknowledgment method is used to know the status of the data frame sent in the network. If the receiver doesn’t provide any acknowledgment, it is understood that frames have been destroyed, and frames are re-transmitted.

• The maximum throughput occurs at G = 1/2, which is 18.4%.
• In Pure Aloha, the probability of successful transmission of the data frame is S= G* e^-2G
• In Pure Aloha, vulnerable time is: 2 * Tfr

NOTE: Pure Aloha is overall efficiency is very less due to a large number of collisions.

Example: An Aloha network uses an 18.2 kbps channel for sending message packets of 100 bits long size. Calculate the maximum throughput.

In Pure Aloha, Efficiency = 18.4%

Usable bandwidth for 18.2 kbps = 18.2 * 0.18 = 3.276 kbps

Therefore, the maximum throughput of Pure Aloha

= 1/2e * 3.276

= (18.4 * 3.276) / 100

= 0.6027

Slotted Aloha

Slotted aloha was developed to increase the performance of the pure aloha, as there are very high chances of collision in pure aloha. In this Aloha, the time of the systems is divided into slots so that the system can send only one frame to a slot, and this frame can only be sent at the beginning of the slot. If a system cannot send a frame at the beginning of the slot, then it has to wait for the next slot to start. If two systems try to transmit the frame at the beginning of a time slot. But it is better than pure Aloha because it has less chance of collision. Shown in below slotted aloha.

• In SlottedAloha, maximum throughput occurs at G = 1, which is 37%.
• In SlottedAloha, the probability of successful transmission of the data frame:

S= G* e^-G

• In SlottedAloha, vulnerable time is: Tfr

Difference between Pure Aloha and Slotted Aloha?Ford ecat 2016 download.

Home Page › How to download your files to iphone/ ipad using aloha

If you have an iOS device such as an iPhone or iPad, you may have had difficulty downloading our music files directly to your device.

This is because iOS devices do not allow file downloads such as.mp3 files from the browser window.

Whether you are using Safari or Google Chrome, neither of these standard browsers will allow the music to be downloaded to your home screen or to your iTunes library.

As you will have read in our download guide, the most common way people transfer music to their iPhone or iPad is by first downloading it to a PC or Mac computer, and then by adding it to iTunes on that computer, plugging in their iPad/iPhone and transferring the files as described in our guide.

However, this may be problematic for you because: A) you may not have a computer to hand, or B) you can't work out how to do it.

Fortunately, there is a really good app that can solve this problem. It is a browser app called Aloha.

Once installed, you can use this browser app instead of Safari or Google Chrome to download your music to your iPhone or iPad.

Aloha allows you to download our music files and play the files back through your iOS device, so that you can listen whenever you want, even when your device screen is switched off.

Below is a step-by-step guide to downloading your files through Aloha so that you can play them back on your device. We have included screenshots to give you a visual overview of the process.

Aloha Browser App Music File Download Guide for iPad/iPhone

For this tutorial we have used iPhone screenshots. However, if you are using an iPad, don't worry because the process is exactly the same except for a couple of the icons in your Aloha browser window located in different places.

Step 1:

First, download the Aloha app here:

Once you have installed the app on your iPad or iPhone, do the following: /digital-media-recovery-serial-key.html.

Step 2:

Tap on the Aloha app icon to start it up (it can be found on your home screen with your other apps).

Once inside Aloha, it will look something like this. Note that you have to skip the first screen when you open the app for the first time.

Step 3:

In the Aloha browser bar, type or copy and paste the following web address: https://www.binauralbeatsmeditation.com/my-account

Alternatively, type our home page address https://www.binauralbeatsmeditation.com and once at our website click on the ‘my account' tab in the top-right hand corner of the page.

Simply type our web address into the Aloha URL bar as you would when using Safari or Google Chrome.

On the ‘my account' page you will be asked to login with your username and password.

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This will have been issued for you via email after you made your purchase. If you do not have this email, it most likely went to your junk/spam box, so check in there first.

If you cannot find your login information, you can email us and we will reset your password for you, or you can reset your password yourself using the password reset function on the my account login page.

Login with your username and password. This will have been provided to you by email after you placed your order.

Please note: your username will be the email address you placed your order with.

Step 4:

Once logged in to your account, navigate to ‘downloads’ on the left-hand side and tap on that menu item.

Here you will see a list of your downloads. These are your purchases.

On the right hand side, you will see orange buttons. When you click on these buttons, it will initiate a download. Use the buttons one by one to download your files.

Click on downloads to find the links (orange buttons) you need to download your files.

When you click on an orange button, Aloha will prompt you to download the file.

Aloha will ask you where you want to download the files to: you can choose from ‘media', ‘files', or ‘Download here'.

‘Download here' will download the files to your Aloha downloads folder; the other two options are simply pre-made folders within the downloads area.

You have a standard choice of 3 folders. ‘Download here' is the default option.

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If you like, you can go into the Aloha home tab and create a new folder just for your music downloads. On the iPhone this is located in the taskbar at the bottom of the screen, and on the iPad is located in the top left hand corner of the screen).

If you go into your downloads folder, you will see the file downloading in real-time.

Step 5:

To access and play the music once it has downloaded, tap the home button (the icon that looks like a house). On an iPad this is located in the top left hand corner of your screen, and on an iPhone it is located across the bottom of the screen.

Doing so will present your folder options, and depending to which folder you downloaded the music to, you can go inside that folder and find your music files. If you tapped on the ‘Download here' option, your files will be stored in your ‘downloads' folder.

I used the default ‘Download here' option, so the files appears in my downloads folder.

A music file will begin playing when tapped. The file will open in a music player.

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You have now successfully downloaded the music onto your iPhone or iPad

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As mentioned previously, you have the option of allowing the music to play while your screen is locked or asleep.