Welcome to the module of smartphone and mobile network project. Through this course, we studied a lot about the hardware, software, and various aspects of smart devices and how they're going to be used. In this project, we're going to look into some real measurements, measuring inside a smartphone and also measuring the smartphone network. Here we go. We're going to start with AIDA64 which you see right here. This is available in the Google Play Store and the Apple App Store. It provides hardware and software inflammation of your smartphone. We're going to analyze the specifications of your smartphone in the details of the System Information, CPU, Network, Battery, Operating System, and much more. The main page looks like this for an Android phone, and it looks like this for an iPhone. Looking into some of the features, you can see the interface on what details are provided and you can see over there, that all the details are provided. So, this is very cool. Let's look into the Android interface. You can see that, the device model here is representing a Samsung Galaxy S7. This is what we did the experiment on, and you can see the memory units that are in here. I want you to notice that, a lot of cases we will only consider the installed Ram. This four gigabytes, eight gigabytes, and other values. Well, that's one. But look at all of the other storage and memory units that are there. Look at the total memory, the available memory, the internal storage, total space, the internal storage free space, Then also, there's the external storage total space, external storage free space, all of these numbers are listed here. For the IPhone, we can look into the details here in which the memory units are described here. First, the device models memory, the total storage, and available storage that we can still use. Then there's a total Ram and available Ram, these specs are all provided in the memory unit. Going back to the CPU and processors, you can see the SOC Model, System On Chip Model, and the core architecture here. You can see the Samsung Exynos eight Octa, and the details, where the manufacturing process is a 14 nanometer technology like we explained in the lectures earlier. Looking into the CPU cores, we can see that there's eight, where the CPU clock ranges from a 442 megahertz going all the way up to 2.6 gigahertz which is very high. Then you can see the clocks that are running these eight cores. At this current state, clock seven and eight are sleeping, they're not doing anything. Also, clock five and six are running at 728 megahertz, which is less than half, than the clocks that are at the core 1,2,3,4. These are at much higher rates. However, far from the maximum clock range. So, just by looking at this, you can see, what type of an operation? How fast of a processing capability is being used on your smartphone currently? In addition from this, you can see that my smartphone is not really running that much. I have empty cores that are not doing anything and even these scores over here are running at lower rates. Once again, you need to think of the architecture that is in here. As we learned in the lectures, the former lectures of this course, when you go into the Samsung Exynos eight Octa structure, it's based on a big little architecture where you have four big cores and four smaller cores. These smaller cores are the little cores. So, you have four big and four little. Based on that architecture, they're running speeds as well as what type of a processing threads are they going to receive are different. The big cores are going to receive heavy duty work, the little cores are going to receive light work, and they're customized to be optimized in that. So, the big cores will consume little energy although they are processing heavy duty operations and the little cores are going to be doing the lighter operations with very little energy consumption. For the big ones, our customized and the energy profile is optimized to use little energy, and the little cores are also designed that way. So, we have cores for big jobs and we have cores for light jobs. Those are the big and little cores, and they're all in the big little architecture in the SoC model that we're looking at right here. On the IPhone side, we can see the CPU and processor, where the CPU is an Apple A9. As we described in our former lectures, this is a Samsung device, this is a Samsung CPU. Also, you can see that, the speed is currently running at 1.85 gigahertz. The technology is 14 nanometers and you have two cores, the active core count is two as well. Then you can see the GPU information down here, which has six cores. Going into the display of the Android device, you can see the screen resolution, the screen size, the screen diagonal, the pixel density, the GPU vendor, and other GPU information, ranging from the utilization, the clock range, the GPU clock and it's cores. You can see that it has 20 cores. Currently, it's not utilized. So, it's not doing anything. So, you have 20 cores just laying around. In addition, going into details of the display for the IPhone, What do we see here? The screen size, the aspect ratio, the pixel density. Also, you see the resolution values here, vertical and horizontal, the contrast, the brightness, and supporting technology as well as the color gamma. Back to the Android, looking into the network, the network shows that currently, it is a GSM type. The network is LTE-based. This is in Korea, where I am and my research assistants are and we worked together to design this lecture. The data connection state is disconnected, the data activity is none, because it's disconnected. However, on the Wi-Fi site, other information is provided, where it is enabled and it is using the 2.4 gigahertz ISM band. You can see the CNL in front of that, and that is because CNL is the Communication Networking Laboratory which is my laboratory for me and my grad students where we do our research. That's why we named it CNL, that's the name of the access point, and it's operating at 2.4 gigahertz right now. So, that's why it says CNL. It's not a part of the protocol name, it is a part of my lab. In addition, you will see the information ID of the base station is down there. Signal strength is at minus 48 dBm, which is excellent. DBm? What does that mean? DBm? Well, wait. I'll give you the details of it in the following pages. In addition, it has 54 megabits per second that is supported, and you have a network ID of zero, a gateway, Net mask, and DNS, and we covered the DNS, so that nobody will come and hack us. Then, we have our IPhone information, you can see over there the current connection information in which, LTE-based, capabilities. I can do LTE, I can do CDMA, UMTS, and HSDPA. However, currently, I'm using LTE. That's good, Then, the baseband is using a Qualcomm chip. In addition, we have Wi-Fi IPv4, Wi-Fi IPv6, we're not using that. However, cellular is used and the cellular LTE network is currently using an IPv4 address. We can find that out there. Does it also use IPv6? Well, not now but it could, but not now. The sensors, the sensor list is listed here and look at all the sensors that you see inside. There's acceleration detection, magnetic information, there is other biometric information as well as gyros and other color sensors that are inside. All this information is truly dynamic. Also for the IPhone, the display shows that it's showing GPS information, the longitude and latitude. Then there's the rotation information, the acceleration information, and other magnetic information of what it's detecting in terms of magnetic fields. The operating system is shown right here. In the current parts, focus on that over there, where you see that an Android 7.0 Nougat is being used. We've already explained this in this lecture. What that means and what the major features and upgrades are. Then for here, we have iOS, based on version 11.21, and that it's being used inside here. Check the operating system, this is important. Because based on this version, you can tell what features are possible and what are not. The battery, so important. Battery information is given. You can see that the battery level is in the 46 percent range, and other information showing what is the condition and what is overall, the temperature, as well as what type it is. Over here, you can see for an iPhone, the same related information. Over here however, the battery is fully charged. You can see the overall capacity of the battery and the battery type, then other information is provided as well. These are the references that I used and I highly recommend them to you. Thank you.
