I've been pondering an interesting idea — could we create a network of interconnected WiFi connections that allows people to host content and services directly on their own connections? Essentially, I'm curious if this could lead to the establishment of a citywide Wide Area Network (WAN) where users can navigate through various overlapping WiFi networks. Has this concept been explored already, and is it realistic to develop something like a 'shadow internet' that operates independently of traditional Internet infrastructures?
5 Answers
In California, for example, Cox offers a feature that allows users to connect to other Cox routers nearby if they have an account. This means those routers can form part of a local network, allowing for some cooperative sharing.
What you're really talking about is essentially what the internet does, with WiFi access points converting signals into Internet Protocol packets. However, the main issue is congestion — wireless backhaul doesn't handle traffic well, leading to performance issues.
In theory, it's workable, but most radios are designed for specific configurations. For example, cellphones transmit on one frequency and receive on another, limiting their communication capability. WiFi can connect within a short range, roughly 30 meters, so unless you're in close proximity to a receiver, networking could become problematic.
Yes, it can be set up, but it doesn't operate effectively. WiFi struggles with congestion, and most consumer equipment lacks advanced capabilities. Plus, many users tend to stick to the public internet unless there's a significant reason to connect to nearby servers. However, a localized network can still be beneficial during outages, as seen in situations like the unrest in Iran, although it does carry risks of being tracked by authorities.
Absolutely, similar projects have been implemented successfully in various locations. While the term 'lattice network' might not be common, there are indeed private WiFi networks across neighborhoods and cities. For instance, cities like Detroit and areas in New York have started mesh networks that facilitate community connectivity.

They likely utilize some wired connections or fiber for backhaul to maintain performance, since WiFi alone can get congested pretty quickly.