Original and video links: http://geekcantalk.com/post/75793438943/mobile-performance-from-the-radio-up-4g-architecture
Mobile networks are slow, unreliable, and have high variability both in latency and bandwidth-a nightmare to optimize! Right? Well, almost. while the performance can be much slower, and more unpredictable, it's not nearly as bad as it seems once you understand the architecture and the limitations of the device, and the radio network. and that's what we're re going to do: build a 4G network, from the ground up, piece by piece, and talk about the performance implications of each and every component.
Mobile Networks are slow and unreliable, and bandwidth and latency are both jitters-is it a nightmare optimization object? Okay, that's almost the case. Although the performance can be slower and more unpredictable, it is not as bad as it looks. Of course, you must first understand the architecture and limitations of devices and radio networks. This is what we need to do: Set up a 4G network, start from scratch, a little bit, put a certain component out of detail.
If "4G from the ground up" seems like an ambitious undertaking in 40 minutes-it probably is. But it's not rocket science either, and we're a smart bunch! Things we'll cover:
- Physical architecture of major 4G components (packet and serving gateways, etc)
- Data flow from and to the mobile device within the 4G network
- Latency and bandwidth promises vs. real-life performance
- Radio and resource scheduling in 4G networks
- Performance optimization techniques, tips, and tricks
- For the finale, with 4G under our belts, we'll take a quick look at 3G as well-turns out, it's basically the same, doesn t slightly more contorted.
If the topic "4G from the beginning" is too ambitious for a 40-minute technical speech, it doesn't matter. It is not a rocket technology, right? We are smart guys! The content covered in this speech includes:
- Physical architecture of mainstream 4G components (packages and service gateways)
- Data Flow from mobile devices to 4G Networks
- Theoretically compare latency and bandwidth Performance
- Performance Optimization tips and Techniques
- Finally, after talking about 4G, let's take a look at 3G. Of course, they are similar, but 3G is more distorted.
Once you know how the mobile networks operate under the hood, and why you're seeing the latency and throughput variability that you do, chances are, you'll be able to optimize your site and applications accessing it for better performance.
Once you know how the underlying mobile network runs and why the latency and throughput keep changing, then you may have been able to optimize your applications and websites for mobile networks.