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Wi-Fi Direct is designed to provide a higher bandwidth and better network range than Bluetooth.
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We’ll revisit the remote cursor app and modify it to use Wi-Fi Direct so that we can directly compare its performance to Bluetooth. Then we’ll move on to Wi-Fi Direct, an emerging peer-to-peer networking standard where each device can serve as the Wi-Fi access point for the network. Individual answers are gathered and visualized in real time, giving each user immediate feedback on the collective response and the distribution of answers as they accumulate. Connected via Bluetooth, users pick answers from a common multiple choice questionnaire displayed on their device screens. Then we’ll build a peer-to-peer survey app that lets us create a poll for multiple users. We’ll start by building a remote cursor app, where we visualize the cursor position of two devices connected via Bluetooth.
#Gomez peer android android#
The most common way to implement P2P exchanges of data between Android devices is to use Bluetooth, which is available on all Android devices shipping today. P2P has the advantage that it can reliably provide us with instantaneous feedback across devices due to the very small lag time, and it provides the transmission rates that are crucial for some multiuser or multiplayer apps. Both networking paradigms can coexist and complement each other.
#Gomez peer android update#
For example, if we are connected P2P while we are on the move, we can update an online database as soon as a carrier network becomes available. P2P communication between two devices doesn’t preclude us from also reaching out to web or cloud servers. And finally, information flows directly from one device to the other-we can control the information flow and choose whether data is saved or retained. It uses less power due to its short range and can help protect privacy because information remains decentralized. P2P still works if wireless infrastructure is unavailable or overwhelmed due to high demand, for instance. We don’t require a carrier network or access to Wi-Fi infrastructure, and we won’t be restricted by data quotas. However, the concept of P2P communication doesn’t stop with telephony or file sharing and has little do with copyright. Popular services such as Skype and BitTorrent are only two examples that use peer-to-peer technology. Now it’s time to end our dependence on wireless infrastructure. We’ve mastered the exchange of data between Android devices using Wi-Fi.
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In this chapter, we’ll give peer-to-peer ( P2P) networks the attention they deserve.
#Gomez peer android Bluetooth#
Peer-to-Peer Networking Using Bluetooth and Wi-Fi Direct